Title:
A HYDRAULIC SEAL DEVICE WITH A SLEEVE
Document Type and Number:
WIPO Patent Application WO2005108829
Kind Code:
A3
Abstract:
A seal device to be used to establish hydraulic static or dynamic seal between two conduction tubes (A and B) through which fluids are to be transported; it is equipped with a sleeve made of elastic material fitted in an appropriate containment seating depression; the entire device presents a section that narrows in size gradually from the outer rim line (2) toward the inner depth (3). The joint holding sleeve can present a radial, external cylindrical surface (5) and can even be eventually a commercial type joint sleeve; or it can be of an external radial surface that narrows axially from the extremity of the joint toward the corresponding internal axial extremity. Both the holding seat and the radial external surface (5) of the sleeve can have rectilinear or slightly curved, concave or convex generatrixes. The external radial surface (5) of the sleeve can present some retracted portions (8, 10, 11) that eventually may enclose air or lubricants and may be joined one to the other by ribbing (12) that extends in an axial direction.
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Inventors:
KNAPP ALFONS (DE)
Application Number:
PCT/IB2005/002364
Publication Date:
April 13, 2006
Filing Date:
April 22, 2005
Export Citation:
Assignee:
GEVIPI AG (LI)
KNAPP ALFONS (DE)
KNAPP ALFONS (DE)
International Classes:
F16J15/00; F16J15/02; (IPC1-7): F16J15/06; F16J15/34
Foreign References:
| GB1207959A | 1970-10-07 | |||
| DE4038300A1 | 1992-06-04 | |||
| US6290240B1 | 2001-09-18 |
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