Patent US3589739A successfully refreshed from Google Patents.
US3589739A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing member
Assignee: US Philips Corp
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Filing: 1969-09-03
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Granted: 1971-06-29
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Expires: 1989-09-03
Abstract
Abstract A sealing member for a shaft passed through a structural component which sealing member consists of two comparatively rigid annular parts connected by a twistable ring between them. A plurality of regularly distributed very shallow grooves are provided in the sealing surface of the twistable ring, which grooves, in the case of a radial seal, extend axially and, in the case of an axial seal, extend radially. One of the comparatively rigid annular parts is constructed as a connection member and the other comparatively rigid part has some freedom of movement with respect to the connection member.
Inventors
- 👤 Gerard Johan Scholten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:43
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/40; F16J15/406; F16J15/32; F16J15/3244; F16J15/34; F16J15/3436; F16J15/3456
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
156 words
A sealing member for creating a seal between a shaft rotatably mounted in a structural component and said structural component, the sealing member comprising a first rigid annular part, a second rigid annular part connected with said first annular part, said first and second annular parts being concentric with the longitudinal axis of the sealing member, a ring of relatively flexible material between said first and second annular parts for connecting said parts together, the surface of said ring being a sealing surface for cooperation with the surface of one of the elements between which the seal is being established, a plurality of evenly spaced shallow grooves located on said sealing surface, the direction of the grooves being coincident with the plane of the sealing surface, said first rigid annular part functioning as a connection for the sealing member and said second annular part having relative freedom of movement with respect to the first annular part.
Claim 2
Dependent Claim
156 words
A sealing member for creating a seal between a shaft rotatably mounted in a structural component and said structural component, the sealing member comprising a first rigid annular part, a second rigid annular part connected with said first annular part, said first and second annular parts being concentric with the longitudinal axis of the sealing member, a ring of relatively flexible material between said first and second annular parts for connecting said parts together, the surface of said ring being a sealing surface for cooperation with the surface of one of the elements between which the seal is being established, a plurality of evenly spaced shallow grooves located on said sealing surface, the direction of the grooves being coincident with the plane of the sealing surface, said first rigid annular part functioning as a connection for the sealing member and said second annular part having relative freedom of movement with respect to the first annular part.
Claim 3
Dependent Claim
136 words
A sealing member for creating a seal between a shaft rotatably mounted in a structural component and said structural component, the sealing member comprising a first rigid annular part for connection to the sealing member, a second rigid annular part connected with said first annular part and being relatively free for movement with said shaft, said first and second annular parts being concentric with the longitudinal axis of the sealing member, a ring of relatively flexible material between said fIrst and second annular parts for connecting said parts together, the surface of said ring being a sealing surface of cylindrical shape for cooperation with the surface of said shaft, a plurality of evenly spaced shallow grooves located on said sealing surface, the direction of the grooves being parallel to said longitudinal axis of said sealing member.
Claim 4
Dependent Claim
136 words
A sealing member for creating a seal between a shaft rotatably mounted in a structural component and said structural component, the sealing member comprising a first rigid annular part for connection to the sealing member, a second rigid annular part connected with said first annular part and being relatively free for movement with said shaft, said first and second annular parts being concentric with the longitudinal axis of the sealing member, a ring of relatively flexible material between said fIrst and second annular parts for connecting said parts together, the surface of said ring being a sealing surface of cylindrical shape for cooperation with the surface of said shaft, a plurality of evenly spaced shallow grooves located on said sealing surface, the direction of the grooves being parallel to said longitudinal axis of said sealing member.
Claim 5
Dependent Claim
153 words
A sealing member for creating a seal between a shaft rotatably mounted in a structural component and said structural component, the sealing member comprising a first rigid annular part, a second rigid annular part connected with said first annular part, said first and second annular parts being concentric with the longitudinal axis of the sealing member, a ring of relatively flexible material between said first and second annular parts for connecting said parts together, the surface of said ring being a sealing surface for cooperation with the surface of said structural component, a plurality of evenly spaced shallow grooves located on said sealing surface, the direction of the grooves being oriented at 90* with respect to said longitudinal axis of said sealing member, said first rigid annular part functioning as a connection for the sealing member and said second annular part having relative freedom of movement with respect to the first annular part.
Claim 6
Dependent Claim
153 words
A sealing member for creating a seal between a shaft rotatably mounted in a structural component and said structural component, the sealing member comprising a first rigid annular part, a second rigid annular part connected with said first annular part, said first and second annular parts being concentric with the longitudinal axis of the sealing member, a ring of relatively flexible material between said first and second annular parts for connecting said parts together, the surface of said ring being a sealing surface for cooperation with the surface of said structural component, a plurality of evenly spaced shallow grooves located on said sealing surface, the direction of the grooves being oriented at 90* with respect to said longitudinal axis of said sealing member, said first rigid annular part functioning as a connection for the sealing member and said second annular part having relative freedom of movement with respect to the first annular part.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |