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Title:
REVERSIBLE SPOUT RETAINING CAP FOR A CONTAINER WITH AIR PASSAGEWAY TO PREVENT AIR-LOCK IN SPOUT DURING STORAGE IN THE CONTAINER
Document Type and Number:
WIPO Patent Application WO/2021/035337
Kind Code:
A1
Abstract:
A cap for a container comprises a tubular body which is reversibly matable with a threaded neck of the container. A spout is connected to the tubular body so that its inlet end is located intermediate opposite ends of the tubular body, and an outlet end of the spout is located externally of the tubular body. A plug is provided for threadably mating at a first end of the tubular body. Also, a gasket is provided at an intermediate location within the tubular body for forming a seal with a rim of the container neck. The tubular body defines adjacent the gasket a circumferentially continuous sealing shoulder for clamping the gasket against the neck rim. The tubular body further defines a retaining shoulder at a location arranged intermediate the sealing shoulder and the inlet end of the spout for clamping a base flange of the spout to the neck to dispense liquid. The retaining shoulder is interrupted in the circumferential direction to form a gap between an interior of the tubular body and the inlet end of the spout such that no seal is formed therebetween when the cap is arranged so that liquid can be dispensed through the spout.

Inventors:
MCKAY IAN BOYD (CA)
Application Number:
PCT/CA2020/051138
Publication Date:
March 04, 2021
Filing Date:
August 21, 2020
Export Citation:
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Assignee:
MCKAY IAN BOYD (CA)
International Classes:
B65D25/50; B65D47/06
Foreign References:
EP2361840A12011-08-31
US5165578A1992-11-24
DE29812013U11998-10-08
US7419066B12008-09-02
Attorney, Agent or Firm:
ADE & COMPANY INC. (CA)
Download PDF:
Claims:
CLAIMS:

1. A container comprising: a container body for receiving liquid; a neck carried on the container body having a threaded exterior surface; a spout having a base flange arranged for abutting a rim of the neck; a tubular body which is internally threaded at opposite first and second ends of the tubular body to be threadably matable on the neck of the container in a first position in which the first end is engaged with the neck and in a second position in which the second end is engaged with the neck; a plug which is threadably matable and adapted to form a seal with the tubular body at the first end thereof when the tubular body is arranged in the second position in which the spout is received substantially inside the container body; a gasket for forming a seal with a rim of the neck in the second position of the tubular body, the gasket being supported within the tubular body intermediate the first and second ends; the tubular body defining an annular sealing shoulder adjacent the gasket but in opposite relation to the second end such that the gasket is intermediate the sealing shoulder and the second end, the sealing shoulder being arranged so as to enable clamping of the gasket against the rim of the neck in the second position of the tubular body to form the seal between the gasket and the rim of the neck; and the tubular body defining a retaining shoulder disposed intermediate the first end and the sealing shoulder and facing towards the first end, the retaining shoulder being arranged for abutting the base flange of the spout so as to enable clamping of the base flange against the neck in the first position of the tubular body; the retaining shoulder being interrupted in a circumferential direction of the tubular body so as to form at least one gap between an interior of the tubular body and the base flange of the spout such that no seal is formed with the base flange in the first position of the tubular body.

2. The container of claim 1 wherein the sealing and retaining shoulders are formed by a common annular rib defining an aperture smaller in diameter than a remaining interior of the tubular body, and the gap is formed by an air passageway defined in the rib and extending from the retaining shoulder at which the air passageway is open to a spaced location from the sealing shoulder such that the air passageway is open at an inner face of the rib between the retaining and sealing shoulders.

3. The container of claim 2 wherein the air passageway is formed by a slot in the rib extending from the retaining shoulder to the spaced location from the sealing shoulder such that the air passageway is open substantially across its full length at the inner face of the rib.

4. The container of any one of claims 1 to 3 wherein the base flange of the spout is snugly received in the tubular body adjacent the retaining shoulder such that in the second position of the tubular body, the base flange of the spout is rested against the retaining shoulder.

5. The container of any one of claims 1 to 4 wherein the gasket is carried in a circumferentially extending groove defined in the tubular body between the second end and the sealing shoulder.

6. A cap for a container having a container body for receiving liquid, a neck carried on the container body having a threaded exterior surface, and a spout having a base flange arranged for abutting a rim of the neck, the cap comprising: a tubular body which is internally threaded at opposite first and second ends of the tubular body to be threadably matable on the neck of the container in a first position in which the first end is engaged with the neck and in a second position in which the second end is engaged with the neck; a plug which is threadably matable and adapted to form a seal with the tubular body at the first end thereof when the tubular body is arranged in the second position in which the spout is received substantially inside the container body; a gasket for forming a seal with a rim of the neck in the second position of the tubular body, the gasket being supported within the tubular body intermediate the first and second ends; the tubular body defining an annular sealing shoulder adjacent the gasket but in opposite relation to the second end such that the gasket is intermediate the sealing shoulder and the second end, the sealing shoulder being arranged so as to enable clamping of the gasket against the rim of the neck in the second position of the tubular body to form the seal between the gasket and the rim of the neck; and the tubular body defining a retaining shoulder disposed intermediate the first end and the sealing shoulder and facing towards the first end, the retaining shoulder being arranged for abutting the base flange of the spout so as to enable clamping of the base flange against the neck in the first position of the tubular body; the retaining shoulder being interrupted in a circumferential direction of the tubular body so as to form at least one gap between an interior of the tubular body and the base flange of the spout such that no seal is formed with the base flange in the first position of the tubular body.

7. The container of claim 6 wherein the sealing and retaining shoulders are formed by a common annular rib defining an aperture smaller in diameter than a remaining interior of the tubular body, and the gap is formed by an air passageway defined in the rib and extending from the retaining shoulder at which the air passageway is open to a spaced location from the sealing shoulder such that the air passageway is open at an inner face of the rib between the retaining and sealing shoulders.

8. The container of claim 7 wherein the air passageway is formed by a slot in the rib extending from the retaining shoulder to the spaced location from the sealing shoulder such that the air passageway is open substantially across its full length at the inner face of the rib.

9. The container of any one of claims 6 to 8 wherein the base flange of the spout is snugly received in the tubular body adjacent the retaining shoulder such that in the second position of the tubular body, the base flange of the spout is rested against the retaining shoulder.

10. The container of any one of claims 6 to 9 wherein the gasket is carried in a circumferentially extending groove defined in the tubular body between the second end and the sealing shoulder.

11. A cap for a container having a container body for receiving liquid and a neck carried on the container body having a threaded exterior surface, the cap comprising: a tubular body portion having an internally threaded wall at each one of opposite first and second ends of the tubular body portion so as to be adapted for threadable mating on the neck of the container in a first position in which the threaded wall proximal to the first end is engaged with the neck and in a second position in which the threaded wall proximal to the second end is engaged with the neck; a plug which is threadably matable with the threaded wall of the tubular body portion proximal to the first end thereof, and which is adapted to form a seal with the first end, when the tubular body portion is arranged in the second position; a spout portion connected to the tubular body portion and having a tubular spout body interconnecting opposite inlet and outlet ends; the inlet end of the spout portion being disposed intermediate the first and second ends of the tubular body portion and opening towards the first end so that in the first position the inlet end of the spout portion is located adjacent the neck of the container body for dispensing the liquid from the container body via the spout portion; a first gasket supported at the inlet end for forming a seal with a rim of the neck in the first position of the tubular body portion; the tubular spout body extending from the inlet end of the spout portion within the tubular body portion and past the second end thereof to the outlet end of the spout portion located externally of the tubular body portion, the tubular spout body being spaced inwardly from the threaded wall proximal to the second end of the tubular body portion so that in the second position the neck of the container is received between the tubular body portion and the spout portion with the outlet end of the spout portion received in the container body; a second gasket supported within the tubular body portion intermediate the inlet end of the spout portion and the second end of the tubular body portion for forming a seal with the rim of the neck in the second position of the tubular body portion; and an interior air passageway defined within the tubular body portion, the air passageway being open at a first location radially outwardly of the first gasket and at a second location radially inwardly of the second gasket.

Description:
REVERSIBLE SPOUT RETAINING CAP FOR A CONTAINER WITH AIR PASSAGEWAY TO PREVENT AIR-LOCK IN SPOUT DURING STORAGE IN THE CONTAINER FIELD OF THE INVENTION

The present invention relates to a cap for a container having a spout, in which the cap is configured to selectively support the spout in either a first storage position received substantially inside the container or a second working position protruding from the container so that liquid contents of the container can be dispensed from the spout.

BACKGROUND

For a conventional fuel container, there is provided a cap configured to support a spout in both a storage position in which the spout is received substantially inside the container and a working position in which the spout is located externally of the container but positioned with its base end in communication with the container interior so that liquid can be dispensed from the container via the spout. In order to arrange the spout from the storage position and into the working position, this requires manual handling of the spout itself, which is often wetted with liquid fuel on its outer surface as a result of being disposed in a common space within the container as the liquid fuel received in same when in the storage position.

SUMMARY OF THE INVENTION

According to an aspect of the invention there is provided cap for a container having a container body for receiving liquid, a neck carried on the container body having a threaded exterior surface, and a spout having a base flange arranged for abutting a rim of the neck, the cap comprising : a tubular body which is internally threaded at opposite first and second ends of the tubular body to be threadably matable on the neck of the container in a first position in which the first end is engaged with the neck and in a second position in which the second end is engaged with the neck; a plug which is threadably matable and adapted to form a seal with the tubular body at the first end thereof when the tubular body is arranged in the second position in which the spout is received substantially inside the container body; a gasket for forming a seal with a rim of the neck in the second position of the tubular body, the gasket being supported within the tubular body intermediate the first and second ends; the tubular body defining an annular sealing shoulder adjacent the gasket but in opposite relation to the second end such that the gasket is intermediate the sealing shoulder and the second end, the sealing shoulder being arranged so as to enable clamping of the gasket against the rim of the neck in the second position of the tubular body to form the seal between the gasket and the rim of the neck; and the tubular body defining a retaining shoulder disposed intermediate the first end and the sealing shoulder and facing towards the first end, the retaining shoulder being arranged for abutting the base flange of the spout so as to enable clamping of the base flange against the neck in the first position of the tubular body; the retaining shoulder being interrupted in a circumferential direction of the tubular body so as to form at least one gap between an interior of the tubular body and the base flange of the spout such that no seal is formed with the base flange in the first position of the tubular body.

This arrangement allows a user to move the spout between a working position in which the base flange is abutted against the neck to dispense contents of the container through the spout and a storage position in which the spout is stored within the container body without touching the spout, which is often wetted with liquid such as fuel after being stored in the container body. Furthermore, this arrangement allows air to flow within the tubular body across an interface between the retaining shoulder and the base flange of the spout when the tubular body is arranged in the second position, so as to prevent liquid contained within the spout from becoming trapped therein by air-lock. Thus, by way of the airflow that is facilitated by the at least one gap, when it is desired to move the spout from the storage position to the working position without first removing the plug, liquid located within the spout during storage does not become trapped therein by air-lock, thereby preventing inadvertent spillage of the liquid during movement of the spout to the working position. Additionally, in the event of pressure build-up in the container while the spout is in the storage position with the plug closing the first end of the tubular body, this arrangement may prevent ejection of liquid fuel contained in the spout through the tubular body when the plug is removed while the tubular body remains connected to the container in the second position.

According to another aspect of the invention there is provided a container comprising: a container body for receiving liquid; a neck carried on the container body having a threaded exterior surface; a spout having a base flange arranged for abutting a rim of the neck; a tubular body which is internally threaded at opposite first and second ends of the tubular body to be threadably matable on the neck of the container in a first position in which the first end is engaged with the neck and in a second position in which the second end is engaged with the neck; a plug which is threadably matable and adapted to form a seal with the tubular body at the first end thereof when the tubular body is arranged in the second position in which the spout is received substantially inside the container body; a gasket for forming a seal with a rim of the neck in the second position of the tubular body, the gasket being supported within the tubular body intermediate the first and second ends; the tubular body defining an annular sealing shoulder adjacent the gasket but in opposite relation to the second end such that the gasket is intermediate the sealing shoulder and the second end, the sealing shoulder being arranged so as to enable clamping of the gasket against the rim of the neck in the second position of the tubular body to form the seal between the gasket and the rim of the neck; and the tubular body defining a retaining shoulder disposed intermediate the first end and the sealing shoulder and facing towards the first end, the retaining shoulder being arranged for abutting the base flange of the spout so as to enable clamping of the base flange against the neck in the first position of the tubular body; the retaining shoulder being interrupted in a circumferential direction of the tubular body so as to form at least one gap between an interior of the tubular body and the base flange of the spout such that no seal is formed with the base flange in the first position of the tubular body.

In one arrangement, the sealing and retaining shoulders are formed by a common annular rib defining an aperture smaller in diameter than a remaining interior of the tubular body, and the gap is formed by an air passageway defined in the rib and extending from the retaining shoulder at which the air passageway is open to a spaced location from the sealing shoulder such that the air passageway is open at an inner face of the annular rib between the retaining and sealing shoulders.

In one arrangement, the air passageway is formed by a slot in the annular rib extending from the retaining shoulder to the spaced location from the sealing shoulder such that the air passageway is open substantially across its full length at the inner face of the annular rib.

In one arrangement, the base flange of the spout is snugly received in the tubular body adjacent the retaining shoulder such that in the second position of the tubular body, the base flange of the spout is rested against the retaining shoulder.

In one arrangement, the gasket is carried in a circumferentially extending groove defined in the tubular body between the second end and the sealing shoulder.

According to a further aspect of the invention there is provided a cap for a container having a container body for receiving liquid and a neck carried on the container body having a threaded exterior surface, the cap comprising: a tubular body portion having an internally threaded wall at each one of opposite first and second ends of the tubular body portion so as to be adapted for threadable mating on the neck of the container in a first position in which the threaded wall proximal to the first end is engaged with the neck and in a second position in which the threaded wall proximal to the second end is engaged with the neck; a plug which is threadably matable with the threaded wall of the tubular body portion proximal to the first end thereof, and which is adapted to form a seal with the first end, when the tubular body portion is arranged in the second position; a spout portion connected to the tubular body portion and having a tubular spout body interconnecting opposite inlet and outlet ends; the inlet end of the spout portion being disposed intermediate the first and second ends of the tubular body portion and opening towards the first end so that in the first position the inlet end of the spout portion is located adjacent the neck of the container body for dispensing the liquid from the container body via the spout portion; a first gasket supported at the inlet end for forming a seal with a rim of the neck in the first position of the tubular body portion; the tubular spout body extending from the inlet end of the spout portion within the tubular body portion and past the second end thereof to the outlet end of the spout portion located externally of the tubular body portion, the tubular spout body being spaced inwardly from the threaded wall proximal to the second end of the tubular body portion so that in the second position the neck of the container is received between the tubular body portion and the spout portion with the outlet end of the spout portion received in the container body; a second gasket supported within the tubular body portion intermediate the inlet end of the spout portion and the second end of the tubular body portion for forming a seal with the rim of the neck in the second position of the tubular body portion; and an interior air passageway defined within the tubular body portion, the air passageway being open at a first location radially outwardly of the first gasket and at a second location radially inwardly of the second gasket.

According to yet a further aspect of the invention there is provided a cap for a container comprises a tubular body which is reversibly matable with a threaded neck of the container. A spout is connected to the tubular body so that its inlet end is located intermediate opposite ends of the tubular body, and an outlet end of the spout is located externally of the tubular body with a body of the spout passing through one open end of the tubular body. A plug is provided for threadably mating at the other end of the tubular body through which the spout body does not pass. Also, a gasket is provided at an intermediate location within the tubular body for forming a seal with a rim of the container neck. The tubular body defines adjacent the gasket a circumferentially continuous sealing shoulder for clamping the gasket against the neck rim. The tubular body further defines a retaining shoulder at a location arranged intermediate the sealing shoulder and the inlet end of the spout for clamping a base flange of the spout to the neck to dispense liquid. The retaining shoulder is interrupted in the circumferential direction to form a gap between an interior of the tubular body and the inlet end of the spout such that no seal is formed therebetween when the cap is arranged so that liquid can be dispensed through the spout.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention will now be described in conjunction with the accompanying drawings in which:

Figure 1 is a schematic sectional view of a container in the form of a fuel container with a cap according to a first arrangement of the present invention, where some components are omitted for convenience and/or clarity of illustration, such as a plug of the cap, that shows the cap arranged in a first position in which a spout is supported in a working position for dispensing contents from the fuel container;

Figure 2 is a schematic sectional view of the cap from Figure 1 , showing a tubular body and a plug thereof in assembled condition without the spout;

Figure 3 is a sectional view of the tubular body of the cap from Figure 1 , but shown in perspective;

Figure 4 is a sectional view of the plug of the cap from Figure 1 , but shown in perspective and omitting a gasket for convenience and clarity of illustration;

Figure 5 is a schematic sectional view of the fuel container with the cap of Figure 1 arranged in a second position in which the spout is received substantially inside the fuel container for storage;

Figure 6 is a schematic sectional view of a cap according to a second arrangement of the present invention;

Figure 7 is a schematic sectional view showing a variant of the second arrangement of cap of Figure 6;

Figure 8 is a schematic sectional view of a cap according to a third arrangement of the present invention;

Figure 9 is a sectional view of the tubular body of the cap from Figure 8, but shown in perspective;

Figure 10 is a top plan view of the tubular body of the cap from Figure 8;

Figure 11 is a side view of the tubular body of the cap from Figure 8;

Figure 12 is a schematic partial sectional view of a fuel container with the cap of Figure 8, where some components are omitted for convenience and/or clarity of illustration, such as a plug of the cap, that shows the cap arranged in a first position in which a spout is supported in a working position for dispensing contents from the fuel container;

Figure 13 is a schematic partial sectional view of the fuel container with the cap of Figure 8 arranged in a second position in which the spout is received substantially inside the fuel container for storage; and

Figure 14 is a schematic sectional view of a cap according to a fourth arrangement of the present invention.

In the drawings like characters of reference indicate corresponding parts in the different figures.

DETAILED DESCRIPTION

The accompanying figures show a cap 10 for a fuel container 1 which is configured for supporting a spout 2 of the container 1 in a manner that allows the spout 2 to be to be reversed between a working position for dispensing contents of the container 1 , as shown in Figure 1 , and a storage position in which the spout is received substantially inside the container 1 , as shown in Figure 5, without having to touch the spout 2 as is conventionally necessitated. The fuel container acts as a liquid-receiving container and the spout as a tubular liquid-conveying conduit.

Referring to Figure 1 , the fuel container 1 comprises a conventional container body 3 which has a hollow interior 4 for receiving liquid fuel (not shown) therein. The container 1 also includes a conventional neck 5 carried on the container body 3 which delimits a container opening 6 through which the hollow interior 4 is communicated with an exterior of the container 1 for dispensing the fuel from the container body 3. The neck 5 has a threaded exterior surface 5A for threadably receiving a component such as a cap.

The fuel container 1 additionally includes the conventional spout 2 having an elongated tubular body 7 with a radially enlarged base flange 8 disposed at an inlet end 9A of the spout that is arranged for abutting a rim 5B of the neck 5 in the working position of the spout, as shown in Figure 1 , in which the spout 2 is positioned so that fuel is dispensable from the fuel container 1 via the spout 2. The base flange 8 is radially enlarged relative to the spout body 7 so as to protrude radially outwardly past an outer surface of the spout body 7. Typically, the spout body 7 is tapered in cross sectional size from the inlet end 9A to an outlet end 9B. The spout body 7 may be flexible so that the tubular body 7 thereof may follow a linear path from one end 9A, 9B to the other or a curving path. Also, the base flange 8 carries on its outer face an annular sealing gasket G for forming a seal with the rim 5B of the container neck 5 in the working position of the spout 2.

In order to maintain the spout 2 in the desired one of the working and storage positions, there is provided the cap 10 which comprises a tubular body 12 that is internally threaded at opposite first and second ends 14, 15 of the tubular body 12, as indicated at 17, 18, in order to be threadably matable on the container neck 5 in a first position shown in Figure 1 , in which the first end

14 is engaged with the neck 5, and in a second position shown in Figure 5, in which the second end

15 is engaged with the neck 5. Thus, by the threading at 17, 18 in the vicinity of the opposite ends 14, 15 of the tubular body 12, the body 12 is reversibly positionable upon the container neck 5. In the first position, the first end 14 of the body 12 is located proximally to the container body 3 and the second end 15 is distal thereto, and in the second position of the tubular body 12, the second end 15 is located proximally to the container body 3 and the first end 14 is distal thereto.

Referring to Figures 2 and 3, in the illustrated arrangement the tubular body 12 is circular cylindrical shaped so that the body 12 extends along a linear axis A from the first end 14 to the second end 15. Each of the first and second ends 14, 15 are open so that the container neck 5 is receivable within the tubular body 12. The threaded walls 17, 18 at the opposite ends 14, 15 have substantially the same diameter and each has a substantially constant cross-section corresponding to the externally threaded neck 5. The threading at the walls 17, 18 terminates at an inner edge 19 of a rim 20, 21 at each of the first and second ends 14, 15 of the tubular body. The rims 20, 21 each define a rounded end surface which is generally convexly curved from the inner edge 19 to an outer edge at which the respective rim 20, 21 meets an outer surface 24 of the body 12. The outer surface 24 of the tubular body 12 forms a plurality of parallel protrusions or ridges 25 arranged longitudinally of the body 12, so as to extend longitudinally thereof, and spaced from one another angularly of the tubular body 12. The ridges 25 are raised in a generally radially outward direction.

The tubular body 12 defines a retaining shoulder 27 which is disposed intermediate the first and second ends 14, 15 and facing towards the first end 14. That is, the retaining shoulder 27 is formed at an internal location within the tubular body 12, projecting from an interior wall of the cap body 12 which is threaded, as at 17, 18, inwardly towards a central axis A of the tubular cap body 12. Thus the retaining shoulder 27 is oriented transversely to the axis A of the tubular body. The retaining shoulder 27 is arranged for abutting the base flange 8 of the spout 2 so as to enable clamping of the base flange 8 against the neck 5 in the first position of the tubular cap body 12. That is, while the inside diameter of the tubular body 12 between the retaining shoulder 27 and the first end 14 is sufficiently large to enable passage of the base flange 8 of the spout 2 into the tubular body 12, particularly in an orientation in which the spout outlet end 9B leads passage of the base flange 8 through the tubular body 12, the retaining shoulder 27 acts to obstruct further passage of the spout’s base flange 8 through the tubular cap body 12 while enabling passage of the elongated spout body 7 so as to project beyond the second end 15 of the tubular body 12 when the base flange 8 is engaged with the retaining shoulder 27. As such, the retaining shoulder 27 is configured to delimit an opening within the tubular body 12 between the first and second ends 14, 15, through which the open first and second ends 14, 15 are communicated so that the spout body 7 can be passed therethrough.

In the illustrated arrangement, the retaining shoulder 27 is formed by an annulus defining an aperture 29 which is smaller in diameter than the inside diameter of the tubular body 12. The annulus is formed by a rib 31 having a greater thickness radially of the tubular body 12 as compared to where the tubular body 12 is threaded at 17, 18. The rib 31 is generally centrally located relative to a longitudinal direction of the tubular body 12 and defines a substantially constant diameter bore which interconnects opposite threaded interior portions of the tubular body formed at the opposite ends 14, 15. A peripheral surface 33 of the bore, in other words an inner face of the rib 31 , is smooth which may reduce interference when the spout body 7 is passed through the bore.

In the illustrated arrangement, the base flange 8 of the spout 2 is snugly received in the tubular body 12 adjacent the retaining shoulder 27 such that in the second position of the tubular cap body 12, which is shown in Figure 5, the base flange 8 is rested against the retaining shoulder 27. That is, a portion of the tubular body 12 adjacent the retaining shoulder 27 has a diameter which is slightly larger than a diameter of the spout’s base flange 8 so that there is generally formed a friction fit between the base flange 8 and the interior of the tubular body 12 at the first end 14. This portion of the tubular body is threaded. As such, the spout 2, though a distinct component from the tubular body 12 that is separable therefrom, is disposed in fixed position relative to the cap body 12 in a “mounted position” with respect to the tubular body 12, so that a user can act to reposition the spout 2 by directly handling the cap body 12 to move the same between the first and second positions.

In opposite relation to the retaining shoulder 27 is provided a gasket 34 which is supported within the tubular body 12 in a manner to form a seal with the rim 5B of the neck 5 in the second position of the tubular body 12. In the illustrated arrangement, the gasket 34 which is annular, and may be in the form of a rectangular cross-section O-ring, is carried in a circumferentially extending groove 36 defined in the tubular body 12 at a location between the second end 15 of the body 12 and the retaining shoulder 27. The neck-sealing gasket 34 received in the groove 36 is located at a longitudinally spaced position from the retaining shoulder 27, and in the illustrated arrangement having the rib 31 , one sidewall of the groove 36 is defined by an end face 38 which is opposite to that defining the retaining shoulder 27. This end face 38 defines a clamping surface which is arranged to engage the gasket 34 to enable clamping of the gasket 34 against the neck 5 in the second position. A base 40 of the gasket-receiving groove 36 is recessed relative to the threaded interior wall 18 in the vicinity of the second end 15 of the tubular body 12, and the groove 36 is correspondingly sized to the gasket 34. A width of the gasket 34 between outer and inner sides exceeds an amount by which the groove base 40 is recessed from the interior wall 18 of the body 12, so that an exposed face 42 of the gasket 34 is available for engaging substantially the full width of the container neck rim 5B.

Furthermore, the cap 10 includes a plug 45 which is threadably matable with the tubular body 12 at the first end 14 thereof when the tubular body is arranged in the second position in which the spout 2 is received substantially inside the container body 3. That is, in the second position of the tubular body 12 which is suited for maintaining the spout 2 in the storage position, there remains a path formed by the tubular spout body 7 from its outlet end 9B received within the container body 3 to the open first end 14 of the tubular body located distally to the container body 3 in the second position through which the contents of the fuel container body 3 can exit the same. Thus, the plug 45 is receivable at the first end 14 to close the tubular body 12 thereat and thereby close the interior of the container body 3.

In the illustrated arrangement, the plug 45 comprises a threaded shaft 47 and a head 48 which is enlarged in a radial direction relative to the shaft 47 for abutting the rim 20 at the first end 14 of the tubular body 12 in the second position thereof, and a gasket 50 is carried on an inner side of the head 48 for forming a seal with the rim 20 at the second end 14 of the tubular body 12. The gasket 50 which is annular is received in a circumferentially extending groove 52 formed in the inner side of the head 48 with a groove base recessed from a face 54 of the inner side. The groove 52 thus circumscribes the shaft 47. The shaft 47 of the plug 45 is sized in length so that a free end 56 of the shaft 47 which is distal and opposite to the head 48 is arranged for clamping the base flange 8 against the retaining shoulder 27 in the second position of the body 12 when the plug 45 is received at the first end 14 of the cap body 12.

In use, the spout 2 is passed through the tubular body 12 of the cap 10 such that the radially enlarged base flange 8 is located within the tubular body 12 adjacent the retaining shoulder 27, with the spout body 7 extending from the base flange 8 through the aperture delimited by the retaining shoulder 27 and past the second end 15 of the cap body 12. As such, a base portion of the spout which includes the base flange 8 is covered by the tubular body 12 received thereon and an end portion of the spout including the outlet end 9B protrudes beyond the second end 15 of the tubular body 12.

With the spout 2 mounted in the tubular body 12, the tubular body 12 may then be installed upon the container neck 5 in the first position by threading the first end 14 of the body 12 onto the neck 5 to locate the first end 14 on same. This acts to position the spout 2 in the working position. The base flange 8 of the spout is disposed in a generally sandwiched relation between the retaining shoulder 27 and the neck rim 5B. Upon tightening the tubular body 12 on the neck 5, the base flange 8 of the spout 2 is clamped between the rim 5B of the neck and the retaining shoulder 27. Clamping of the base flange 8 acts to locate the gasket G which is on the inlet end 9A of the spout in tight sealing contact with the neck rim 5B. In the first position, the plug 45 is disconnected from the tubular body 12.

The tubular body 12 may also be installed in the second position by threading the second end 15 of the body 12 onto the neck 5 to locate the second end 15 on same. The spout 2 may be left in its mounted position within the tubular body 12, in which the spout is inherently maintained by the snug fitting of the base flange 8 within the first threaded interior portion of the body 12 that includes the first end 14. As such, by merely positioning the tubular body 12 in the second position the spout 2 is located in its storage position within the container body 3. In the second position, the gasket 34 is disposed in a generally sandwiched relation between the gasket clamping surface defined by face 38 and the neck rim 5B. Upon tightening the tubular body 12 on the neck 5 in the second position, the gasket 34 is clamped between the rim 5B of the neck and the clamping surface 38, which acts to locate the gasket 34 in tight sealing contact with the neck rim 5B. As the interior of the container body 3 otherwise remains communicated with the exterior environment of the container 1 in the second position of the body 12 via the open first end 14 of the cap body 12, the plug 45 is threaded at the first end 14 thereby closing the body 12 the open end thereof. Upon tightening of the plug 45 in the tubular body 12, the gasket 50 is clamped between the rim 20 of the first end 14 and the head 48 of the plug so as to dispose the gasket 50 is sealing contact with the tubular body 12. As such, the cap 10 serves as a substitute for a conventional cap which is offered for sale for use with conventional fuel containers with conventional reversible spouts. The cap 10 including the tubular body 12 and the plug 45 may be purchased as a replacement for the conventional cap while remaining usable with the conventional container 1 and spout 2. The cap 10 enables repositioning of the spout without directly contacting the spout, which outer surface is often wetted after storage within the container body.

Figures 6 and 7 show a second arrangement of cap indicated at 10’ in which the tubular body 12 and the spout 2 are unitary. That is, the cap 10’ comprises a tubular body portion 12’ having an internally threaded wall 17, 18 at each one of opposite first and second ends 14, 15 of the tubular body portion so as to be adapted for threadable mating on the neck 5 of the container in the first position in which the threaded wall 17 proximal to the first end 14 is engaged with the neck 5 and in the second position in which the threaded wall 18 proximal to the second end 15 is engaged with the neck 5. A spout portion 2’ is connected to the tubular body portion 12’, which collectively form a single unitary body. The spout portion 2’ has a tubular spout body 7 interconnecting opposite inlet and outlet ends 9A, 9B.

The inlet end 9A of the spout portion 2’ is disposed intermediate the first and second ends 14, 15 of the tubular body portion 2’ and opens in a direction towards the first end so that in the first position the inlet end 9A is located adjacent the container neck 5 for dispensing the liquid fuel from the container body 3 via the spout portion 2’.

The inlet end 9A of the spout portion 2’ is coupled to a bridging portion 3T at which the tubular body portion 12’ is thickened, which is disposed at a generally longitudinally central location of the tubular body portion 12’.

The inlet end 9A of the spout portion 2’ is longitudinally offset from the bridging portion towards the first end 14 of the tubular body portion 12’ so as to provide a circumferential receptacle encircling the inlet end 9A where a sealing gasket 60 is received to form a seal with the rim 5B of the container neck 5 in the first position.

Gasket 36 is received at an opposite location to gasket 60 encircling the spout body 7 to form a seal with the neck rim 5B in the second position.

The tubular spout body 7 extends from the inlet end 9A within the tubular body portion 12’ and past the second end 15 of the tubular body portion 12’ to the outlet end 9B of the spout portion which is located externally of the tubular body portion. The tubular spout body 7 is spaced radially inwardly from the threaded wall 18 proximal to the second end 15 of the tubular body portion 12’ so that in the second position the container neck 5 is received between the tubular body portion 12’ and the spout portion 2’.

The second arrangement of cap 10’ also includes plug 45 which is threadably matable with the threaded wall 17 of the tubular body portion proximal to the first end 15 thereof when the tubular body portion 12’ is arranged in the second position in which the outlet end 9B of the spout portion 2’ is received inside the container body 3.

Figure 7 shows a variant of the cap 10’ with a valve 62 (schematically shown) operably carried within the tubular spout body 7 and positionable in an open position in which the inlet and outlet ends 9A, 9B of the spout portion 2’ are communicated via the tubular spout body 7 and in a closed position in which communication between the inlet and outlet ends is substantially obstructed. The valve 62 is disposed at the inlet end 9A of the spout portion 2’, so as to be located as closely as possible to the container opening 6 in the first position of the tubular body portion 12’, and is operated by a handle 65 located externally of the tubular body portion 12’ which is connected to the valve 62 by stem 67 which is operably supported in the tubular body portion 12’ at the thickened bridging portion 3T. A pair of annular gaskets 69 are carried on the stem 67 at axially spaced positions of the stem so as to prevent fluid from leaking out of the tubular body portion 12’ where the stem 67 passes through same. Figure 7 shows the valve 62 as a ball valve.

In Figures 8-13 there is shown another arrangement of cap indicated at 10” which is substantially similar in construction to the cap of the first illustrated arrangement that is indicated at 10 except that the cap 10” includes at least one gap 70 between tubular body 12” and the base flange 8 of the spout such that no seal is formed with the base flange 8.

More specifically, the tubular body 12” defines an annular sealing shoulder 38 adjacent the gasket 34 but in opposite relation to the body’s second end 15 such that the gasket, which, generally speaking, is supported within the tubular body 12” intermediate the first and second ends 14, 15 thereof, is consequently located intermediate the sealing shoulder 38 and the second end 15. The sealing shoulder 38 is arranged so as to enable clamping of the gasket 34 against the rim 5B of the container neck in the second position of the tubular body to form the seal between the gasket and the rim of the neck, as shown in Figure 12. Thus the sealing shoulder 38 is generally continuous in a circumferential direction of the tubular body 12” so that the gasket 34, which also is annular in shape, can be clamped along its full circumference against the rim 5B of the container neck to form a suitable seal to prevent liquid fuel from passing through an interface between the gasket 34 and the container neck rim 5B. Normally the sealing shoulder 38 is also sized in a radially inward direction generally from the threaded wall at 18 to an inner annular edge 38A of the sealing shoulder to be at least substantially equal to, or larger than, a width of the gasket 34 measured between its inner and outer peripheries, in order to effect a suitable seal at the neck rim 5B.

Further, the tubular body 12” defines a retaining shoulder 27” disposed intermediate the first end 14 and the sealing shoulder 38 and facing towards the first end 14. The retaining shoulder 27” is arranged for abutting the base flange 8 of the spout 2 so as to enable clamping of the base flange against the neck 5 in the first position of the tubular body, which position is shown in Figure 12. Typically the base flange 8 is clamped between the neck rim 5B and the retaining shoulder. Moreover, the retaining shoulder 27” is interrupted in the circumferential direction of the tubular body so as to form at least one gap 70 between an interior of the tubular body 12” and the base flange 8 of the spout such that no seal is formed with the base flange in the first position of the tubular body. This is because air is able to flow within the tubular body 12” around the base flange 8. Accordingly, when the tubular body 12” is disposed in the second position such that the spout is located substantially inside the fuel container body 3, as shown in Figure 13, liquid fuel within the container body 3 which is contained within the inverted spout is prevented from becoming trapped therein by air-lock, so as to prevent inadvertent spillage when the cap 10” is moved to the first position without first removing the plug 45.

In the illustrated arrangement 10”, the sealing and retaining shoulders are formed by a common annular rib 31 ” defining an aperture 29 smaller in diameter than a remaining interior of the tubular body. In other words, the sealing and retaining shoulders are defined on either side of the rib 31 ”, each shoulder facing in an opposite direction.

The gap 70 providing airflow is formed by an air passageway 74 defined in the rib 31 and extending from the retaining shoulder 27” at which the air passageway is open, so as to form a gap 70, to a spaced location 76 from the sealing shoulder 38 such that the air passageway is open at an inner face 33 of the rib between the retaining and sealing shoulders 27”, 38. Thus, in such an arrangement where the two shoulders are provided by the common rib, then, generally speaking, the retaining shoulder 27” is substantially annular, in that a majority of the circumference of the tubular body at the retaining shoulder comprises a surface, but the substantially annular retaining shoulder is made discontinuous at locations of the gaps 70 disposed at angularly spaced locations from each other. It will be appreciated that in such an arrangement there are provided a plurality of the gaps 70 and consequently a plurality of air passageways 74, as more clearly shown in Figures 8-10.

The interior of the tubular body 12” at the retaining shoulder 27” is sized diametrically larger than the base flange 8 of the spout so that the gap defines an opening at a radially outward location of the base flange.

In the illustrated arrangement, the air passageway 74 is formed by a slot in the rib 31 ” extending from the retaining shoulder 27” to the spaced location 76 from the sealing shoulder 38 such that the air passageway is open not only at its opposite ends but also substantially across its full length at the inner face 33 of the rib.

In other arrangements which are not shown, the sealing shoulder may be formed by a continuous annular rib, as it is in the illustrated arrangement, and the retaining shoulder by a plurality of inwardly projecting teeth which are distinct from the aforementioned rib and disposed at angularly spaced positions about the interior circumference of the tubular body.

Figure 14 shows an arrangement of cap indicated at 10’” which is similar in construction to the unitary arrangement of Figure 6 except that, like the third arrangement of cap 10”, there is provided an interior air passageway 74’ to provide fluidic communication between otherwise distinct fluidic chambers, one of which is formed generally at a first end 14 of a tubular body portion 12’”, between the first end 14 and an inlet end 9A of a spout portion, and the other which is formed generally at a second end 15 of the tubular body portion 12”’, between the second end 15 and gasket 34.

More specifically, in the foregoing arrangement 10’” there is provided a first gasket 60 supported at the inlet end 9A for forming a seal with the rim 5B of the container neck in the first position of the tubular body portion, and a second gasket 34 supported within the tubular body portion intermediate the inlet end 9A of the spout portion and the second end 15 of the tubular body portion for forming a seal with the rim 5B of the neck in the second position of the tubular body portion.

The tubular body portion 12”’ further includes an interior air passageway 74’ which is open at a first location 80 radially outwardly of the first gasket 60, which acts to form a seal in the first position, and at a second location 82 radially inwardly of the second gasket 34. Thus is provided in the second position of the tubular body 12’” fluidic communication between the inside of the container body and the inlet end of the spout portion, while each gasket is positioned to form in each position of the tubular body portion 12”’ a seal in a manner which does not permit leakage to the external environment. That is, in the first position of the tubular body portion 12”’ the spout gasket 60 forms a seal with the neck rim 5B allowing the fuel to be dispensed through the spout body; the opening at 80 of the air passageway 74 is located to the outside of the neck rim 5B and therefore does not affect fuel dispensing. In the second position of the tubular body portion 12”’, the storage gasket 34 forms a seal with the rim 5B of the neck, but the opening at 82 of the air passageway is located in fluidic communication with the interior of the container body 3 to permit venting of the container body through to the inlet end 9A of the spout portion.

The two foregoing arrangements allow air to flow within the tubular body between the inlet end of the spout and the inside of the container body when the tubular body is arranged in the second position, so as to prevent liquid fuel contained within the spout from becoming trapped therein by air-lock. Thus, by way of the airflow that is facilitated by the at least one gap, when it is desired to move the spout from the storage position to the working position without first removing the plug, liquid fuel located within the spout during storage does not become trapped therein by air-lock, thereby preventing inadvertent spillage of the fuel during movement of the spout to the working position. Additionally, in the event of pressure build-up in the fuel container while the spout is in the storage position with the plug closing the first end of the tubular body, this arrangement may prevent ejection of liquid fuel contained in the spout through the tubular body when the plug is removed while the tubular body remains connected to the container in the second position.

The scope of the claims should not be limited by the preferred embodiments set forth in the examples but should be given the broadest interpretation consistent with the specification as a whole.