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Patent Searching and Data


Title:
FOAM DISPENSER
Document Type and Number:
WIPO Patent Application WO/2018/038686
Kind Code:
A1
Abstract:
The invention, which relates to a foam dispenser providing the foam products, such as foam soap, shaving, foam, hair mousse, skin cleansing foams, polyurethane foams etc., which are used in various sectors such as cosmetics, cleaning and hygienic products, construction, chemicals etc., to the user within/from a valved and pressurized container (5) is generally comprised of a container retaining mechanism (31, 32) that retains the neck part (5.2) of the container (5) filled with foam thereby enabling the said container (5) to be fixed to the foam dispenser and of a trigger mechanism (20) that applies the required pressure on the valve stem (5.1) of the container (5) filled with foam, thereby enabling the foam product to be discharged out from the foam dispenser.

Inventors:
KARAMAN, Nurettin (Yakuplu Bakircilar Sanayi Sitesi Orkide, Cad. No: 16 Beylikdüzü, Istanbul, 34524, TR)
Application Number:
TR2016/000121
Publication Date:
March 01, 2018
Filing Date:
August 23, 2016
Export Citation:
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Assignee:
KARAMAN, Nurettin (Yakuplu Bakircilar Sanayi Sitesi Orkide, Cad. No: 16 Beylikdüzü, Istanbul, 34524, TR)
International Classes:
B65D83/26; A47K5/12; B65D83/38; B05B12/08; B05B12/12
Domestic Patent References:
WO2013029770A12013-03-07
WO1981001130A11981-04-30
WO1998042592A11998-10-01
WO2015071406A12015-05-21
Foreign References:
EP2570366A22013-03-20
US20110226805A12011-09-22
US20020074349A12002-06-20
GB1449736A1976-09-15
CH615490A51980-01-31
US5927563A1999-07-27
Attorney, Agent or Firm:
YEŞİLYURT, Murat (Optimum Patent Ofisi Danışmanlιk Ltd. Şti, 19 Mayıs Mahallesı Halaskargazi CaddesiYapı Apartmanı No:220 Kat:9 Daire:16, Şişli/İstanbul, 34384, TR)
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Claims:
CLAIMS

1- It is a foam dispenser (1) that provides the foam products (such as foam soap, shaving foam, hair mousse, skin cleansing foams, polyurethane foams etc.), which are used in various sectors such as cosmetics, cleaning and hygienic products, construction, chemicals etc., to the user within/from the valved and pressurized containers (5) and is characterized in that it is comprised of; the container retaining mechanism box (110) with a circular clearance at the center;

- the retaining projection (32) that narrows the circular clearance a little and that is positioned at the edge of the circular clearance;

- the container eject button (31) that pushes the retaining projection (32) into the container retaining mechanism box (110) and thereby enlarging the said circular clearance a bit more;

- the motion ring (33) that enables the connection between the container eject button (31) and the retaining projection (32);

- the container retaining mechanism that consists of the springs (34) that holds the retaining projection (32) at the normal position and applies a compression force on the container neck (5.2) when not pressed on the container eject button (31).

2- A foam dispenser (1) according to claim 1, wherein the edges of the circular clearance at the center of the container retaining mechanism box (1 10) are claw-shaped (111) to be fitted into and compatible with the container neck (5.2).

3- It is a foam dispenser (1) that provides the foam products (such as foam soap, shaving foam, hair mousse, skin cleansing foams, polyurethane foams etc.), which are used in various sectors such as cosmetics, cleaning and hygienic products, construction, chemicals etc., to the user within/from the valved and pressurized containers (5) and is characterized in that it is comprised of;

- the trigger gear (26) that includes the spiral channel (26.2) on one side and at least one dosage pin (26.3) on the other side and the gear shaft (26.1) at the center;

- the motor (24) that provides the rotary motion to the trigger gear (26) directly or through at least one motor gear (27);

- the trigger lever (25) whose one end is equipped with an eccentric housing (25.2) through which the said gear shaft (26.1) passes and at least one channel pin (25.3) positioned within the said spiral channel (26.2) and the other end is equipped with at least one pin hook (25.1);

- and the trigger mechanism (20) that is equipped with the valve trigger (22) making the communication of the trigger mechanism (20) with the valve stem (5.1) possible and consisting of the trigger pins (22.1) blocked by the said pin hooks (25.1)

4- The foam dispenser (1) according to claim 3, wherein it is comprised of the spacer tube (23) and foam outlet nozzle (21) right after the valve trigger (22) that facilitates the transportation of the foam product coming out from the valve stem (5.1) to the user.

5- The foam dispenser (1) according to claim 3, wherein it is comprised of the trigger mechanism box (130) that protects the trigger mechanism (20).

6- The foam dispenser (1) according to any one of the previous claims, wherein it has at least one stopper (132) positioned in the trigger mechanism box (130) so as to block the said dosage pin (26.3) during the rotation of the trigger gear (26).

7- The foam dispenser (1) according to any one of the previous claims, wherein it has at least one lever support (131) positioned within the trigger mechanism box (130) and that functions as a basis for the levering action of the trigger lever (25).

8- The foam dispenser (1) according to claim 3, wherein it is comprised of the spacer plate (120) that covers the top part of the mechanism box (100) consisting of the trigger mechanism (20), electronic circuits (9), sensor (4), warning lights (13) and safety magnet (6) and that forms a base for the container retaining mechanism (30) and that has a valve hole (121) at the center.

9- The foam dispenser (1) according to the previous claims, wherein it is equipped with two pieces of circuit complementary magnets that prevent the operation of the foam dispenser (1) by cutting off the current sent to the sensor (4) and/or electronic circuits (9) and/or motor (24) when they are in a separated position; one of them is positioned on the front part of the mechanism box (100) and the other is located at the inner side of the cover (12) facing each other.

10- It is a foam dispenser (1) that provides the foam products (such as foam soap, shaving foam, hair mousse, skin cleansing foams, polyurethane foams etc.), which are used in various sectors such as cosmetics, cleaning and hygienic products, construction, chemicals etc., to the user within/from the valved and pressurized containers (5) and is characterized in that it is comprised of the process of applying pressure on valve stem (5.1) by the pressurized container (5), wherein it has the following steps:

- The motor (24) starts to run when the user is detected by the sensor (4);

The motor (24) transfers the rotary motion to the trigger gear (26) directly or via at least one motor gear (27);

- The trigger gear (26) that includes the spiral channel (26.2) on one side and at least one dosage pin (26.3) on the other side and also the gear shaft (26.1) at the center starts to rotate;

- the movement of the trigger lever (25) and channel pin (25.3), which connects it with the spiral channel (26.2), through the spiral channel (26.2) from the center to the outer curve together with the rotation of trigger gear (26);

- The trigger lever (25) that performs the lever action while the channel pin (25.3) proceeds through the spiral channel (26.2);

- The eccentric housing (25.2) of the trigger lever (25) and gear shaft (26.1) passing through the said eccentric housing (25.2) guiding the said movement;

At least one lever support (131) in the trigger mechanism box (130) in which the trigger mechanism (20) is located functions as the base for the lever action of the trigger lever (25);

- therefore, the edge of the trigger lever (25) equipped with at least one pin hook (25.1) makes the hoisting movement at a vertical level;

- The vertical movement of valve trigger (22) that is connected to the pin hook (25.1) via the trigger pins (22.1) following the vertical hoisting movement of the pin hook (25.1);

- Therefore, the required pressure for discharging the foam product is applied to the valve stem (5.1) located in the valve trigger (22);

When the trigger gear (26) rotates at a certain level, the said dosage pin (26.3) is blocked by the stopper (132);

- The trigger gear (26) is blocked by the stopper (132) and the trigger lever (25) stays in the same position as long as the motor (24) keeps running;

- The motor (24) releases or turns the trigger gear (26) one turn back after it runs for a predetermined period. 11- It is intended for use as a container retaining mechanism (30) that enables the insertion of containers (5) from the foam dispenser (1) without any need for extra space and special structural arrangement and is characterized in that it is comprised of the following steps;

- The user presses the container eject button (31) in order to insert the container (5) into the foam dispenser (1);

- The retaining projection (32) which is connected to the container eject button (31) with the motion ring (33) moves in the direction of the pressure;

- When the retaining projection (32) moves in the direction of the pressure, circular clearance at the center of container retaining box (110) becomes a bit wider;

- By holding the container eject button (31), the user inserts the container (5) into the foam dispenser (1) in such a way that the container neck (5.2) fits into the said circular clearance;

- When the container (5) seats into the housing, the user releases the container eject button (31); The retaining projection (32) turning back to its previous position due to the springs (34) narrows the said clearance and compresses the container neck (5.2).

12- It is intended for a use as a container retaining mechanism (30) that enables the removal of containers (5) from the foam dispenser (1) without any need for extra space and special structural arrangement and is characterized in that it is comprised of the following steps; - The user presses the container eject button (31) in order to remove the container (5) from the foam dispenser (1);

The retaining projection (32) which is connected to the container eject button (31) with a motion ring (33) moves in the direction of being pressed;

When the retaining projection (32) moves in the direction of the pressure, the circular clearance at the center of the container retaining box (1 10) becomes a bit wider;

- By doing so, the container neck (5.2) fitted into the circular clearance is released;

- The user leans the released container (5) forward and removes it from the foam dispenser (1).

AMENDED CLAIMS

received by the International Bureau on 23 August 2017 (23.08.2017)

1- Foam dispenser (1) that provides the foam products (such as foam soap, shaving foam, hair mousse, skin cleansing foams, polyurethane foams etc), which are used in various sectors such as cosmetics, cleaning and hygienic products, construction, chemicals etc., to the user within/from a valved and pressurized containers (5) and is characterized in that it is comprised of;

• a container retaining mechanism box (110) with a circular clearance at the center;

• a retaining projection (32) that narrows the circular clearance a little and that is positioned at the edge of the circular clearance;

- a container eject button (31) that pushes the retaining projection (32) into the container retaining mechanism box (110) and thereby enlarging the said circular clearance a bit more;

- a motion ring (33) that enables the connection between a container eject button (31) and the retaining projection (32);

- a container retaining mechanism that consists of the springs (34) that holds the retaining projection (32) at the normal position and applies a compression force on a container neck j(5.2) when not pressed on a container eject button (31).

2- A foam dispenser (1) according to claim I, wherein the edges of a circular clearance at the center of a container retaining mechanism box (110) are claw-shaped (111) to be fitted into and compatible with a container neck (5.2).

3- A container retaining mechanism (30) that enables the insertion of containers (5) from the foam dispenser (1) without any need for extra space and special structural arrangement and is characterized in that it is comprised of the following steps;

• The user presses the container eject button (31) in order to insert the container (5) into the foam dispenser (1);

• A retaining projection (32) which is connected to a container eject button (31) with a motion ring (33) moves in the direction of the pressure;

- When the retaining projection (32) moves in the direction of the pressure, circular clearance at the center of container retaining box (110) becomes a bit wider; - By holding the container eject button (31), the user inserts a container (5) into the foam dispenser (1) in such a way that a container neck (5.2) fits into the said circular clearance;

- When the container (5) seats into the housing, the user releases a container eject button (31);

A retaining projection. (32) turning back to its previous position due to a springs (34} narrows the said clearance and compresses the container neck (5.2).

4- A container retaining mechanism (30) that enables the removal of containers (5) from the foam dispenser (1) without any need for extra space and special structural arrangement and is characterized in that it is comprised of the following steps;

- The user presses the container eject button (31) in order to remove the container (5) from the foam dispenser (1);

- A retaining projection (32) which is connected to a container eject button (31) with a motion ring (33) moves in the direction of being pressed;

- When a retaining projection (32) moves in the direction of the pressure, the circular clearance at the center of a container retaining box (110) becomes a bit wider;

- By doing so, a container neck (5.2) fitted into the circular clearance is released;

- The user leans the released container (5) forward and removes it from the foam dispenser (1).

Description:
FOAM DISPENSER

DESCRIPTION

This invention relates to a foam dispenser that provides the foam products (such as foam soap, shaving foam, hair mousse, skin cleansing foams, polyurethane foams etc.), which are used in various sectors such as cosmetics, cleaning and hygienic products, construction chemicals etc., to the user within/from the valved and pressurized containers.

In particular, foam-type products such as foam soap, shaving foam, hair mousse, skin cleansing foams, polyurethane foams are used in different sectors such as cosmetics, cleaning and hygienic products, construction chemicals. The said foam products are generally put on the market within pressurized containers in a compressed (compressed liquid - gas solution) manner. Foam products are discharged from the said containers through a valve (similar to aerosol valve) mechanism. The patent document titled "Valves for pressurized dispensers" with reference No. GB 1449736, the patent document titled "Spray-can valve" with reference No. CH615490, the patent document titled "Pressurized container" with reference No. WO8101130, the patent document titled "Dispensing valve for viscous products" with reference No. W09842592 and the patent document titled "Valve arrangement for pressurized liquid or foam dispenser" with reference No. US 5927563 can be shown as the examples of pressurized container valves. The said valves are operated by pressing the "valve stem" located on the valve bowl of the container inlet. The product comes out from the container through a channel positioned perpendicular to the center of valve stem (along the valve stem). When pressed on the valve stem towards the inner side of the container, foam product comes out from the nozzle positioned at the center of valve stem. Due to the structure and operating type of the valve stem, it is not possible to press on it manually without any extra apparatus. In the state-of-the-art, pressurized containers are equipped with various manual apparatus (spray nozzle, pressing button, latch handle, valve actuator etc.) which make easier to press on the valve stem for discharging the foam product therefrom. Moreover, it is already known in the field that mechanical and/or automatic mechanisms are used as well as the said manual apparatus. In the state-of-the-art, the patent document titled "Dispenser with level sensor" with reference No. WO2015071406 takes part in the literature. The said patent document relates to a mechanism that provides the liquid or foam product within a chamber to the user. It does not offer any solution to stabilize the pressurized containers and operate the valve stem. In the known technology of the prior art, there are some dispensers developed for the pressurized containers. For the said dispensers, the containers are fixed and stabilized in a chamber. Such type of chambers in cylindrical form are almost at the half height of the container. The container is inserted into the said cylindrical chamber and fixed to the dispenser. While the user puts the container into the chamber, he/she has to insert the container perpendicularly from the clearance at the upper part of the chamber. For this reason, during the insertion of container, the user has to keep it at the height of the chamber within the dispenser. Similarly, while removing the container from the chamber, the user perpendicularly pulls the container up until it detaches from the chamber. In that case, the dispenser body should have enough clearances and/or structural arrangements that will allow for the said movements. The clearances in the dispenser body causes the enlargement of the sizes of known dispensers. Special and structural arrangements in the dispenser body also lead to increase in the manufacturing costs of known dispensers.

Some versions of commercially available dispensers developed for the pressurized containers are equipped with mechanisms intended for discharging the product by applying pressure on the valve stem. In order to discharge foam products from the container, it is required to apply pressure onto the valve stem in a certain extent. Currently available automatic dispensers use complex and multi-part mechanisms for the said process. Many of the mechanisms that apply pressure on the valve stem for the said automatic dispensers performs the said "pressing action" at certain intervals. In this case, a single dose of foam is dispensed to the user who places his/her hand under the sensor. When the user tries to get an extra dose of foam from the dispenser, s/he firstly removes his/her hand from the sensor area and then put his/her hand under the sensor once again. In order to solve this problematic issue, some automatic dispensers are equipped with a foam collecting chamber. For the said automatic dispensers with a foam collecting chamber, the mechanism that applies pressure on the valve stem activates and pumps foam to the collecting chamber when the system is not operational. The foam product collected in the chamber can be dispensed to the user in different doses. However, transferring the foam-type product from the container and storing it into the chamber may deform the foam characteristic of the product. Extra mechanisms are required to restore the foam characteristic of the product. However, it causes a cost increase for the available dispensers. Moreover, extra mechanisms and complicated systems increase the number of potential failures.

The said invention which relates to a foam dispenser providing the foam products (such as foam soap, shaving foam, hair mousse, skin cleansing foams, polyurethane foams etc.), which are used in various sectors such as cosmetics, cleaning and hygienic products, construction chemicals etc., to the user within/from the valved and pressurized containers will overcome all kinds of disadvantages mentioned above and, is characterized in that

The trigger mechanism that performs the "pressing action" on the valve stem comprises of minimum components; thereby reducing the failure risk of foam dispensers to the minimum level.

The foam product in the container of the foam dispenser is directly dispensed to the user after it comes out from the valve stem. Therefore, the product is provided to the user without losing its foam characteristic. No extra mechanism is required because the foam product is offered to user directly from the pressurized container. The costs of foam dispenser can be reduced accordingly.

The container within the foam dispenser is fixed by locking it from the neck part. The container is placed into the foam dispenser by fitting its neck part to the retaining mechanism. This process does not require lifting the container to a specific level. It also does not require keeping the container in an upright position while inserting it into the foam dispenser. Similarly, the container can be removed from the foam dispenser by leaning forward. As an advantage, it allows the production of the body and cover part of the dispenser in optimal sizes. Also, there is no requirement to make special and structural arrangements in the foam dispenser for inserting the containers into it. Therefore, it allows manufacturing costs and time to be reduced.

The user can take foam as much as s/he desires from the foam dispenser in a single dose. When the user puts his/her hand under the sensor, the trigger mechanism applies the proper pressure on the valve stem. And then, the flow of foam starts from outlet nozzle. The amount of foam taken from the dispenser is determined based on the running time of the motor. During the running time of the motor, the trigger mechanism applies the proper pressure on the valve stem. This invention is described and exemplified in detail with the following attached figures. These figures are as follows:

Figure 1 shows the general view of the foam dispenser in an upright position.

Figure 2 shows the general view of the foam dispenser at a horizontal level. Figure 3 shows the general view of the foam dispenser with no cover.

Figure 4 shows the general view of the internal part of the foam dispenser.

Figure 5 shows the separate views of the container and mechanism box in which the container is inserted.

Figure 6 shows the exploded view of the mechanism box. Figure 7 shows the separated view of the components located in the mechanism box.

Figure 8 shows the trigger mechanism with the container.

Figure 9 shows the detailed view of the trigger mechanism.

Figure 10 shows the trigger mechanism out of the trigger mechanism box.

Figure 11 shows the components of the trigger mechanism separately. Figure 12 shows the detailed view of the trigger lever, trigger gear and trigger mechanism box.

Figure 13 shows the detailed view of the trigger lever, trigger gear and trigger mechanism box.

Figure 14 shows the detailed view of the dosage pin and stopper in the trigger mechanism. Figure 15 shows the detailed view of the channel pin of the trigger lever through the spiral channel on trigger gear.

Figure 16 shows the position of the container retaining mechanism before pressing the container eject button.

Figure 17 shows the position of the container retaining mechanism when pressed on the container eject button. Figure 18 shows the general view of the insertion and removal position of the container to/from the foam dispenser.

Description of the references:

No. PART NAME

1 Foam dispenser

4 Sensor

5 Container

5.1 Valve stem

5.2 Container neck

6 Safety magnet

7 Battery

8 Counter magnet

9 Electronic circuits

11 Dispenser body

12 Cover

13 Warning light

14 Key

15 Lock

15.1 Lock bolt

20 Trigger mechanism

21 Foam outlet nozzle

22 Valve trigger

22.1 Trigger pin 23 Spacer tube

24 Motor

25 Trigger lever

25.1 Pin hook

25.2 Eccentric housing

25.3 Channel pin

26 Trigger gear

26.1 Gear shaft

26.2 Spiral channel

26.3 Dosing pin

27 Motor gear

30 Container retaining mechanism

31 Container ej ect button

32 Retaining projection

33 Motion ring

34 Spring

100 Mechanism box

1 10 Container retaining mechanism box

1 11 Claw

120 Spacer plate

121 Valve hole

130 Trigger mechanism box

131 Lever support 132 Stopper

133 Motor housing

The said invention, which relates to a foam dispenser (1) providing the foam products (such as foam soap, shaving foam, hair mousse, skin cleansing foams, polyurethane foams etc.), which are used in various sectors such as cosmetics, cleaning and hygienic products, construction, chemicals etc., to the user within/from the valved and pressurized containers generally comprises of container retaining mechanism (30) that retains the neck part (5.2) of the container (5) filled with foam thereby enabling the said container (5) to be fixed to foam dispenser (1) and trigger mechanism (20) that applies the required pressure on the valve stem (5.1) of the container (5) filled with foam, thereby enabling the foam product to be taken out from the foam dispenser (1).

The known type pressurized containers (5) are used in the foam dispensers (1). Cylindrical containers (5), which are generally known as "aerosol containers" are equipped with a valve stem (5.1) positioned at one end of the cylindrical containers (5) and intended for discharging the product. Also, the said cylindrical containers (5) become narrow towards the end of the container on which the valve stem (5.1) is positioned. The said narrow part comprises of recess and/or projection known as the container neck (5.2).

When the user looks at the foam dispenser (1) from the outside, s/he sees the dispenser body (11) and the cover part (12) that covers the dispenser body (11). The cover (12) is fixed to the dispenser body (11) with a locking mechanism (15). The said fixation can be achieved by the lock bolt (15.1). The lock bolt (15.1) is driven by a key (14). It is therefore possible to lock and unlock the said locking (15) mechanism.

The dispenser body (11) and/or cover (12) are equipped with warning lights (13). The warning lights (13) inform the user about the fill state of the container (5) and the battery (7) status.

Foam outlet nozzle (21) is seen at the bottom part of the foam dispenser (1). Also, there is a sensor (4) positioned close to the foam outlet nozzle (21). When the foam dispenser (1) is ready to operate and the user puts his/her hand under the sensor (4), a certain amount of foam is dispensed from the outlet nozzle (21) to the hand of the user. The foam dose is directly proportional to the running time of the motor (24).

When the user opens the cover (12) of the foam dispenser (1), it is possible to see the container clearance and mechanism box (100) within the dispenser body (1 1). The batteries (7) are positioned within the clearance at the back side of the dispenser body (11).

There is a circular clearance on the top part of mechanism box (100) that can encircle the container neck (5.2) and also there is a valve hole (121) at the center of said clearance into which the valve stem (5.1) can be inserted. Moreover, a semicircular projection is seen on the corner of the said circular clearance. The said projection is known as the retaining projection (32). There is a button on the front part of the mechanism box (100). The said button is known as container eject button (31). When the user presses the container eject button (31), the retaining projection (32) positioned on the edge of said circular clearance moves into the inside of said edge part. Therefore, the said circular clearance becomes a bit wider. When the user releases the container eject button (31), the retaining projection (32) returns back to its former position and narrows the circular clearance.

When a user desires to insert a container (5) into the foam dispenser (1), s/he keeps the container (5) in an upside-down position and aligns the container neck (5.2) with the circular clearance on the top part of the mechanism box (100). And then, the container neck (5.2) is inserted into the circular clearance by holding the container eject button (31). At the same time, the valve stem (5.1) is inserted into valve hole (121). The user releases the container eject button (31) after the container neck (5.2) and valve stem (5.1) are inserted into their slots. Therefore, the retaining projection (32) that returns back to its former position compressing the container neck (5.2) into the circular clearance. The container (5), which is fixed with the container retaining mechanism (30), is placed onto a spacer plate (120). The said valve hole (121) is positioned on this spacer plate (120). The spacer plate (120) separates the container retaining mechanism (30) with the other elements within the mechanism box (100).

When the user desires to eject the container (5) within the foam dispenser (1), s/he presses on the container eject button (31). When pressing on the container eject button (31), the retaining projection (32) releases to compress the container neck (5.2) within the circular clearance. Therefore, the user can remove the container (5) from the foam dispenser (1) by leaning it forward. Insertion and removal processes of the container (5) to/from the foam dispenser (1) can be performed by means of the container retaining mechanism (30). The container retaining mechanism (30) is located on the top part of the mechanism box (100) and within the container retaining mechanism box (110). The above-mentioned circular clearance is available at the center of the container retaining mechanism box (110). The edges of said clearance is claw-shaped (1 11) to be fitted with the container neck (5.2).

The container retaining mechanism (30) comprises of the container eject button (31), retaining projection (32), motion ring (33) and springs (34). The container eject button (31), motion ring (33) and retaining projection (32) are the parts of the uniform body. The container eject button (31) is connected with the motion ring (33). The retaining projection (32) is positioned on a certain part of the motion ring (33). The retaining projection (32) is a semicircular projection locating on the edge of the circular clearance at the center of the motion ring (33).

When not pressed on the container eject button (31), the springs (34) keep the motion ring (33) at a certain position. For the said specific position, the container eject button (31) sticks out a bit from the mechanism box (100). It can also be seen in the said specific position that the retaining projection (32) is positioned to narrow the circular clearance at the center of the container retaining mechanism box (1 10). When the user presses the container eject button (31), the motion ring (33) and retaining projection (32) are driven in the direction of pressing. Therefore, they compress the springs (34). When the retaining projection (32) moves in the direction of pressing, the circular clearance becomes a bit wider. When the user releases the container eject button (31), the springs (34) turns the container eject button (31), the motion ring (33) and the retaining projection (32) back to their former position.

The front part of the mechanism box (100) is equipped with warning lights (13), electronic circuits (9), sensor (4) and safety magnet (6). On the opposite side of the safety magnet (6) positioned on the front part of the mechanism box (100), there is a counter magnet (8) at the inner side of the cover (12). The safety magnet (6) and counter magnet (8) should be positioned closely in order to make the sensor (4) functional and operational. In this case, the sensor (4) does not operate until the cover (12) is closed completely. Therefore, no product is dispensed from the foam dispenser (1) when the cover (12) is open.

The foam product comes out from the foam dispenser (1) by means of the trigger mechanism (20). The trigger mechanism (20), principally, applies pressure, which is required for discharging the foam product, onto the valve stem (5.1). It also enables the foam product coming out from the valve stem (5.1) to be dispensed directly to the user. The trigger mechanism (20) is placed into the trigger mechanism box (130). The trigger mechanism box (130) is positioned within the mechanism box (100). The trigger mechanism (20) comprises of the motor (24), motor gear (27), trigger gear (26), trigger lever (25), valve trigger (22), spacer tube (23) and foam outlet nozzle (21). The motor (24) is positioned on the motor housing (133) at the outer part of the mechanism box (130). The shaft of the said motor (24) reaches the inner side of the trigger mechanism box (130). The motor gear (27) is positioned at the end of the motor (24) shaft. The motor gear (27) transfers the rotary motion driven by the motor (24) to the trigger gear (26). As a variation, the motor (24) can be directly connected to the trigger gear (26). The trigger gear (26) includes a spiral channel (26.2) on it and there is at least one dosage pin (26.3) which is positioned on the opposite side of the spiral channel (26.2) and near the edge of the trigger gear (26). Also, there is a gear shaft (26.1) at the center of the trigger gear (26) and on the side where the spiral channel (26.2) is located. The gear shaft (26.1) makes the connection between the trigger gear (26) and trigger lever (25) possible. The gear shaft (26.1) passes through the eccentric housing (25.2) located on the trigger lever (25). Also, there is at least one channel pin (25.3) located near the edge of the eccentric housing (25.2) on the trigger lever (25). The channel pin (25.2) operates within the spiral channel (26.2) on the trigger gear (26). When the trigger gear (26) starts its rotary motion, the channel pin (25.3) proceeds within the spiral channel (26.2). When the channel pin (25.3) proceeds in the spiral channel (26.2), the trigger lever (25) performs an action similar to the leverage/levering action. The eccentric housing (25.2) and gear shaft (26.1) passing through the eccentric housing (25.2) guide the said lever action. The trigger lever (25) uses the lever support (131) as the point of support for the said lever action. The lever support (131) is included in the trigger mechanism box (130). The trigger lever (25) has the form of an "L" with a wide angle. The lever support (131) is positioned close to the edge of the trigger lever (25). The L-formed trigger lever (25) comprises of the eccentric housing (25.2) and channel pin (25.3) at one end and the pin hook (25.1) at the other end. During the levering action of the trigger lever (25), the end on which pin hook (25.1) is positioned moves vertically (upside). The pin hook (25.1) retains the trigger pin (22.1) within the valve trigger (22). Therefore, the vertical (towards upside) movement of the pin hook (25.1) pushes the valve trigger (22) upwards. When the container (5) is inserted into the foam dispenser (1), the valve stem (5.1) passes through the valve hole (121) and seats into the valve trigger (22). In that case, the upward movement of the valve trigger (22) applies pressure on the valve stem (5.1). Therefore, the foam discharge from the valve stem (5.1) can be possible. The foam product coming out from the valve stem (5.1) is provided to the user by passing through the valve trigger (22), spacer tube (23) and foam outlet nozzle (21), respectively. The valve trigger (22), spacer tube (23) and foam outlet nozzle (21) are consecutive parts followed by the other.

The foam dispenser (1) makes the dispensing of the foam product possible at the desired dosages without any interruption. This feature can be used thanks to the dosage pin (26.3) located on the trigger gear (26) and a stopper (132) within the trigger mechanism box (130). While the trigger gear (26) is rotating, the dosage pin (26.3) is blocked by the stopper (132). For example, when the trigger mechanism (26) is about to complete one cycle, the dosage pin (26.3) is blocked by the stopper (132) and so the rotation movement ends. In this case, the foam product is dispensed as long as the motor (24) continues to operate. Despite being forced by the motor (24) to rotate, the trigger gear (26) whose dosage pin (26.3) is blocked by the stopper (132) stays in its position. The trigger gear (26) that has rotated (almost one cycle) until the dosage pin (26.3) is blocked by the stopper (132) stands in a position allowing the lever action of the trigger lever (25). In this case, the trigger lever (25) continues the levering action as long as the trigger gear (26) protects its position. Therefore, the valve trigger (22) applies the pressure, which is required for discharging the product, on the valve stem (5.1) without any interruption. When the foam product is discharged at the prescribed dosage, the motor (24) stops operating.

An exemplary usage of the invention is described as follows:

The user can open the cover (12) by turning the key (14) located on the top part of the dispenser body (11). When the cover (12) is opened, the safety magnet (6) and counter magnet (8) separate from each other. Therefore, the sensor (4) does not perform its sensing function when the cover (12) is in the opened state.

The user places the container (5) with the foam product into the foam dispenser (1) by means of the container retaining mechanism (30). The user moves the retaining projection (32) by holding the container eject button (31). Therefore, the circular clearance at the center of the container retaining mechanism (110) becomes a bit wider. For the said position, the user can insert the container neck (5.2) on the top part of the spacer plate (120) and on the circular clearance at the center of the container retaining mechanism (110). At the same time, the valve stem (5.1) passes through the valve hole (121) at the center of the spacer plate (191) and inserts into the valve trigger (22). After being sure that thee container (5) is seated into the housing, the user releases the container eject button (31). The springs (34) that have been compressed when the user presses on the container eject button (31) returns the motion ring (33) and the retaining projection (32) back to their former positions following the release of the container eject button (31). When retaining projection (32) is returned back to its former position, the container neck (5.2) is compressed into the circular clearance at the center of the container retaining mechanism (110). The said compression occurs between the retaining projection (32) and the claw (11 1).

When the container (5) is inserted into the foam dispenser (1), the user closes the cover (12). When the cover (12) is closed, the safety magnet (6) and counter magnet (8) close up to each other. Therefore, it is possible to supply power from the batteries (7) to the sensor (4) and electronic circuits (9).

The user puts his/her hand under the sensor (4) when s/he desires to take foam from the foam product (1). The sensor (4) detects the hand and informs the electronic circuits (9) about the detection of the user's hand. The electronic circuits (9) starts the motor (24) through the battery (7) power. Having been started up, the motor (24) rotates the motor (24) shaft. The rotary motion of the motor (24) shaft is transferred to the trigger gear (26) with the motor gear (27) located on the edge of the motor (24) shaft.

During the rotary motion of the trigger gear (26), the channel pin (25.3) positioned within the spiral channel (26.2) on the trigger gear (26) proceeds through the said spiral channel (26.2). The said movement proceeds from the center of the spiral channel (26.2) to the outer part. The trigger lever (25) is driven by the movement of the channel pin (25.3) positioned on the trigger lever (25) through the spiral channel (26.2). The eccentric housing (25.2) positioned at the close edge of the trigger lever (25) to the trigger gear (26) and the gear shaft (26.1) passing through the said eccentric housing (25.2) guide the movement of the trigger lever (25). Therefore, the trigger lever (25) performs the lever action. The point of support of the trigger lever (25) that makes the lever action is the lever support (131) located on the trigger mechanism box (130). The eccentric housing (25.2) and channel pin (25.3) that provide the lever action to the trigger lever (25) are located on either side of the lever support (131). The pin hooks (25.1) which enable the trigger lever (25) to retain the trigger pins (22.1) on the valve stem (22) are located on the other side of the lever support (131). It means that during the levering action, the force is applied from the side of the trigger lever (25) on which the eccentric housing (25.2) and channel pin (25.3) are located. Therefore, the other side of the trigger lever (25) on which the pin hook (25.1) is located is responsible for carrying the load during the levering action. In this case, the trigger lever (25) applies vertical (upwards) force onto the valve trigger (22) that is connected to the pin hooks (25.1). Therefore, the valve trigger (22) applies the pressure, which is required for discharging the product, on the valve stem (5.1).

When the trigger gear (26) rotates almost one cycle, the dosage pin (26.3) on the trigger gear (26) is blocked by the stopper (132) on the trigger mechanism box (130). As long as the motor (24) keeps running, the movement of the dosage pin (26.3) is blocked by the stopper (132). In this case, the trigger gear (26) cannot proceed and it remains stable although the motor (24) keeps running. Because the required pressure force is applied to the valve stem (5.1) in the said position, the foam product flow continues.

Following the continuous pressing force on the valve stem (5.1), the flow of continuous foam product is initiated from the valve stem (5.1). The foam product coming out from the valve stem (5.1) reaches the user's hand passing through the valve trigger (22), spacer tube (23) and foam outlet nozzle (21), respectively.

The running time of the motor (24) has been previously determined. In cases when there is a certain dosage of product discharge, the motor (24) releases the trigger gear (26) and turns it one cycle back. Therefore, the pressing force on the valve stem (5.1) disappears. When user intends to remove the empty container (5) from the foam dispenser (1), she/he presses on container eject button (31) after the cover (12) is opened. When the user presses the container eject button (31), the container neck (5.2) is released. Therefore, the user removes the container (5) from the foam dispenser (1) by leaning it forward.