US4470608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resilient gasket having auxiliary resiliency means
Assignee: Dow Chemical Co
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Filing: 1983-09-01
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Granted: 1984-09-11
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Expires: 2003-09-01
Abstract
Abstract Flexible, resilient gasketing material with auxiliary resiliency means, such as protuberances (ridges or beads) and internally-positioned spring means. The gaskets may be straight or curved or made into continuous forms such as rectangles, triangles, ovals, or circles. Preferably the gaskets are flanged.
Inventors
- 👤 Charles M. Warren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:00
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/02; F16J15/021; F16J15/022; F16J15/024
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
69 words
A resilient elongate gasket having a hollow portion running internally through the gasket along its length, said gasket having auxiliary resiliency means comprising resilient protuberances positioned in parallel along the effective sealing surfaces of the gasket, and spring members positioned in said hollow portion, along the length of the gasket, said spring members responding resiliently to compression and decompression forces acting on the effective sealing surfaces of the gasket.
Claim 2
Dependent Claim
69 words
A resilient elongate gasket having a hollow portion running internally through the gasket along its length, said gasket having auxiliary resiliency means comprising resilient protuberances positioned in parallel along the effective sealing surfaces of the gasket, and spring members positioned in said hollow portion, along the length of the gasket, said spring members responding resiliently to compression and decompression forces acting on the effective sealing surfaces of the gasket.
Claim 3
Dependent Claim
13 words
The gasket of claim 1 wherein the protuberances comprise resilient ridges or beads.
Claim 4
Dependent Claim
32 words
The gasket of claim 1 wherein the spring members comprise convexical opposed elongate strips which are curved along their length, the curved strips forming, as viewed in cross-section, a generally oval configuration.
Claim 5
Dependent Claim
20 words
The gasket of claim 1 wherein the gasket has a flange means along its length on the inner edge thereof.
Claim 6
Dependent Claim
32 words
The gasket of claim 1 wherein the protuberances comprise at least one pair of counterbiased ridges or beads, said counterbiasness being evidenced by facing acute angles of the protuberances toward each other.
Claim 7
Dependent Claim
53 words
The gasket of claim 1 wherein the protuberances comprise at least one pair of counterbiased ridges or beads, said counterbiasness being evidenced by facing acute angles of the protuberances toward each other, said acute angles being defined by protuberances disposed at an angle of about 75° to about 80° from the gasket surface.
Claim 8
Dependent Claim
36 words
The gasket of claim 1 wherein the protuberances comprise at least one pair of counterbiased ridges or beads disposed at an acute angle of about 79°±1° from the gasket surface, said acute angles facing each other.
Claim 9
Dependent Claim
29 words
The gasket of claim 1 wherein the gasket has a flange means along its length on the inner edge thereof, said flange means having resilient protuberances along it length.
Claim 10
Dependent Claim
29 words
The gasket of claim 1 characterized by a flange along its inside edge, said flange means having resilient protuberances disposed at acute angles from its surface in counterbiased manner.
Claim 11
Dependent Claim
14 words
The flange of claim 1 characterized by a stiffening means along its outer edge.
Claim 12
Dependent Claim
15 words
The gasket of claim 1 wherein the gasket is a continuous gasket enclosing an area.
Claim 13
Dependent Claim
18 words
The gasket of claim 1 wherein the gasket is a continuous gasket enclosing a circular or oval area.
Claim 14
Dependent Claim
21 words
The gasket of claim 1 wherein the gasket is a continuous gasket enclosing a plane area having three or more sides.
Claim 15
Dependent Claim
19 words
The gasket of claim 1 wherein the gasket is a continuous gasket enclosing a plane area having four sides.
Claim 16
Dependent Claim
112 words
A gasket for sealing two mating surfaces of a container or vessel to maintain a fluid impervious seal therebetween comprising a resilient member having a general configuration matingly engagable with the mating surfaces and having auxiliary and cooperative resilient elements integral therewith consisting essentially of (a) at least one parallel pair of resilient protuberances extending from each side of said resilient member, said protuberances being positioned substantially normal to the direction of the exertion of pressure of the fluid within said vessel, and (b) matingly opposed spring-like elements internally positioned within said member to cooperatively exert resiliency, independent of said resiliency inherent in said member, toward the mating surfaces of the vessel.
Claim 17
Dependent Claim
112 words
A gasket for sealing two mating surfaces of a container or vessel to maintain a fluid impervious seal therebetween comprising a resilient member having a general configuration matingly engagable with the mating surfaces and having auxiliary and cooperative resilient elements integral therewith consisting essentially of (a) at least one parallel pair of resilient protuberances extending from each side of said resilient member, said protuberances being positioned substantially normal to the direction of the exertion of pressure of the fluid within said vessel, and (b) matingly opposed spring-like elements internally positioned within said member to cooperatively exert resiliency, independent of said resiliency inherent in said member, toward the mating surfaces of the vessel.
Claim 18
Dependent Claim
28 words
The gasket of claim 15 wherein each pair of resilient protuberances are disposed from the surface of the member at acute angles therefrom and counterbiased from each other.
Claim 19
Dependent Claim
37 words
The gasket of claim 15 wherein said spring-like segments consist essentially of convexical opposed elongate strips of resilient metal which are curved along their lengths, the curved strips forming, as viewed in cross-section, a generally oval configuration.
Claim 20
Dependent Claim
15 words
The gasket of claim 15 further characterized as having a flange along its inner edge.
Claim 21
Dependent Claim
16 words
The gasket of claim 15 further characterized as having a stiffening means along its outer edge.
Claim 22
Dependent Claim
23 words
The gasket of claim 15 wherein it is a continuous gasket enclosing an area which may be oval, round, triangular, quadrangular, or polygonal.
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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) | 1987-09-11 | 1988-03-12 | 1988-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-11 | 1992-03-12 | 1992-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-11 | 1996-03-12 | 1996-09-11 | $7700.00 | Window Closed / Lapsed |