Patent US3635480A successfully refreshed from Google Patents.
US3635480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealed joint and gasket therefor
Assignee: Parker Hannifin Corp
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Filing: 1970-06-04
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Granted: 1972-01-18
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Expires: 1990-06-04
Abstract
Abstract A joint and gasket in which one of a pair of parts to be sealed has a recess surrounded by a clamping face, the gasket has a resilient member to snugly fit into and fill the recess and has a metal plate embedded in the resilient member, the plate having a flat exposed portion to be clamped between the two parts. The resilient member has a relatively wide buffer portion adjacent the flat plate portion and has a sealing portion inwardly of the buffer portion. The sealing portion initially extends axially beyond the buffer portion whereby when the parts are brought together to clamp the plate, the sealing portion is deformed into tight sealing engagement with the parts and the buffer portion remains substantially undeformed and unstressed. The plate is connected to the resilient member by embedding a conical portion of the plate therein and preferably the conical portion has a reverse bend at its free end to enhance the connection and has circumferentially spaced holes therethrough to permit resilient material on both sides of the conical portion to be integrally connected through the holes.
Inventors
- 👤 Orville J Bain
- 👤 Jerry G Jelinek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:01
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/02; F16J15/06; F16J15/10; F16J15/12; F16J15/121; F16J15/122; F16J15/123; F16L; F16L23/00; F16L23/16; F16L23/18; F16L23/22
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
58 words
A gasket comprising a plate of rigid material and an elastomeric member, the elastomeric member having a sealing portion and a buffer portion, the plate having a flat exposed portion and another portion that is embedded solely in the buffer portion, the buffer portion extending generally axially only in one direction from the plane at the exposed portion.
Claim 2
Dependent Claim
58 words
A gasket comprising a plate of rigid material and an elastomeric member, the elastomeric member having a sealing portion and a buffer portion, the plate having a flat exposed portion and another portion that is embedded solely in the buffer portion, the buffer portion extending generally axially only in one direction from the plane at the exposed portion.
Claim 3
Dependent Claim
37 words
The gasket of claim 1 in which one end of the buffer portion is substantially flat and coplanar with said plate exposed portion and the other end is flat and axially offset from said plate exposed portion.
Claim 4
Dependent Claim
38 words
The gasket of claim 1 in which said embedded plate portion extends at an angle of approximately 15* to the longitudinal axis of the gasket so as to traverse the buffer portion in both axial and radial directions.
Claim 5
Dependent Claim
47 words
The gasket of claim 1 in which the radial width of the buffer portion is more than one-half the radial thickness of the sealing portion and the radial outer face of the buffer portion is substantially cylindrical and is exposed throughout the greater part of its length.
Claim 6
Dependent Claim
80 words
A gasket comprising a plate of rigid material and an elastomeric member, the elastomeric member having adjacent contiguous annular sealing and buffer portions, the sealing portion extending axially beyond one end of the buffer portion, said one end of the buffer portion being substantially coplanar with and immediately adjacent an exposed flat portion of said plate, and said plate having a portion embedded within said buffer portion, said plate being substantially thinner than the axial thickness of said buffer portion.
Claim 7
Dependent Claim
80 words
A gasket comprising a plate of rigid material and an elastomeric member, the elastomeric member having adjacent contiguous annular sealing and buffer portions, the sealing portion extending axially beyond one end of the buffer portion, said one end of the buffer portion being substantially coplanar with and immediately adjacent an exposed flat portion of said plate, and said plate having a portion embedded within said buffer portion, said plate being substantially thinner than the axial thickness of said buffer portion.
Claim 8
Dependent Claim
16 words
The gasket of claim 5 in which the embedded portion is completely within the buffer portion.
Claim 9
Dependent Claim
171 words
A joint comprising a first part having an annular recess with a radial wall and having a clamping face adjacent said wall, a second part having a clamping face opposite the first-mentioned clamping face and having a surface opposite said recess, a gasket having a resilient member within said recess and having a rigid member with a flat portion between said clamping faces, the gasket having a sealing portion in contact with said surface and the bottom of said recess and having a buffer portion between the sealing portion and the flat portion, said member having another portion embedded within said buffer portion, said sealing portion initially extending axially beyond both ends of said buffer portion and being substantially deformed and stressed by contact with said surface and the recess bottom wall when the joint is made tight, and the axial length of said buffer portion being substantially the same as the depth of the recess whereby said buffer portion is substantially undeformed and unstressed when the joinT is made tight.
Claim 10
Dependent Claim
171 words
A joint comprising a first part having an annular recess with a radial wall and having a clamping face adjacent said wall, a second part having a clamping face opposite the first-mentioned clamping face and having a surface opposite said recess, a gasket having a resilient member within said recess and having a rigid member with a flat portion between said clamping faces, the gasket having a sealing portion in contact with said surface and the bottom of said recess and having a buffer portion between the sealing portion and the flat portion, said member having another portion embedded within said buffer portion, said sealing portion initially extending axially beyond both ends of said buffer portion and being substantially deformed and stressed by contact with said surface and the recess bottom wall when the joint is made tight, and the axial length of said buffer portion being substantially the same as the depth of the recess whereby said buffer portion is substantially undeformed and unstressed when the joinT is made tight.
Claim 11
Dependent Claim
28 words
The joint of claim 7 in which the buffer portion substantially completely fills the recess between the sealing portion and said radial wall when the joint is tight.
Claim 12
Dependent Claim
48 words
The joint of claim 7 in which the ends of the sealing portion are rounded and extend axially beyond both ends of the buffer portion, and the ends of the buffer portion merge with the rounded ends and are substantially normal to the longitudinal axis of the gasket.
Claim 13
Dependent Claim
73 words
A gasket comprising a plate of rigid material and an elastomeric member having a buffer portion and sealing portion, the plate having an exposed portion and another portion that is embedded solely in the buffer portion and extends generally axially therein, the embedded portion having a reinforcement that resists radial expansion by force applied thereto by fluid pressure acting on the sealing portion located radially inward of the embedded portion of the plate.
Claim 14
Dependent Claim
73 words
A gasket comprising a plate of rigid material and an elastomeric member having a buffer portion and sealing portion, the plate having an exposed portion and another portion that is embedded solely in the buffer portion and extends generally axially therein, the embedded portion having a reinforcement that resists radial expansion by force applied thereto by fluid pressure acting on the sealing portion located radially inward of the embedded portion of the plate.
Claim 15
Dependent Claim
31 words
The gasket of claim 10 in which the embedded portion is of uniform thickness and the reinforcement comprises a section of the embedded portion that is curled toward the sealing portion.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-17 | 1975-07-19 | 1976-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-17 | 1979-07-19 | 1980-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-17 | 1983-07-19 | 1984-01-18 | $7700.00 | Window Closed / Lapsed |