US3828810A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature resistant seal and valve assembly
Assignee: Midland Ross Corp
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Filing: 1972-09-25
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Granted: 1974-08-13
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Expires: 1992-09-25
Abstract
Abstract Structure providing a seal, e.g., in pressure relief valves typically to be provided in the servo-modulating or shutoff type, wherein a sealing ring of C-shaped cross section is supported on one of two relatively movable members of the valve housing for continuous contact by the other member when engaged thereby. The sealing ring of C-shaped cross section is particularly useful where the seal is subjected to repetitive opening and closing cycles accompanied by the movement of fluid at elevated temperatures between the seal ring and the valve lip portion of the member which moves into and out of contact with the ring.
Inventors
- 👤 J Evers
- 👤 L Bender
- 👤 D Bender
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:24
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/32; F16K1/34; F16K1/42; F16K1/422; F16K17/00; F16K17/02; F16K17/04; F16K17/044; F16K17/0466; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
204 words
A valve assembly comprising: a pair of relatively movable members, and guide and support means therefor for supporting the members for movements along a predetermined path into and out of engagement in effecting a substantially fluid-tight seal, one of the members having a fluid-conducting passageway terminating within said seal; a first of said members including a resilient seal element extending in a circuit about the center of said path along a general transverse plane aligned crosswise of said path, said first member defining a continuous recess extending in said circuit and having a floor facing transversely relative to said path for receiving said element, said floor being of a width to support the full width of said element, said element having continuous biased valve-seat surface facing in transverse inclined relation with said path and exposed aligned relation with the other of said members for engagement thereby, said element effecting sealed relation with a surface of said first member when said element is engaged by the second of said members; said second member having a circuital surface located and constructed in respect to said valve seat surface to Effect continuous sealing engagement therewith at the completion of closing movements of the members along said path.
Claim 2
Dependent Claim
204 words
A valve assembly comprising: a pair of relatively movable members, and guide and support means therefor for supporting the members for movements along a predetermined path into and out of engagement in effecting a substantially fluid-tight seal, one of the members having a fluid-conducting passageway terminating within said seal; a first of said members including a resilient seal element extending in a circuit about the center of said path along a general transverse plane aligned crosswise of said path, said first member defining a continuous recess extending in said circuit and having a floor facing transversely relative to said path for receiving said element, said floor being of a width to support the full width of said element, said element having continuous biased valve-seat surface facing in transverse inclined relation with said path and exposed aligned relation with the other of said members for engagement thereby, said element effecting sealed relation with a surface of said first member when said element is engaged by the second of said members; said second member having a circuital surface located and constructed in respect to said valve seat surface to Effect continuous sealing engagement therewith at the completion of closing movements of the members along said path.
Claim 3
Dependent Claim
46 words
The valve assembly of claim 1 wherein: said circuital recess faces away from the center of said path and has a side surface facing lengthwise of said path toward the second member for holding said element in sealing relation with said second member at sealing position.
Claim 4
Dependent Claim
44 words
The valve assembly of claim 2 wherein: said element is received in said recess and comprises a thin wall of flexible sheet material bulging outwardly relative to the floor of the recess in a direction along said transverse plane to define said biased surface.
Claim 5
Dependent Claim
28 words
The valve assembly of claim 3 wherein: said wall is of concavo-convex cross section and at least one edge of said wall conforms circuitly to said recess floor.
Claim 6
Dependent Claim
39 words
The valve assembly of claim 4 wherein: said first member forms said recess as a groove having side surfaces extending transversely of said path, said wall having its edges in close-fitting relation with said side surfaces and said floor.
Claim 7
Dependent Claim
41 words
The valve assembly of claim 2 wherein: said first member comprises a circuital wall centered with respect to said path having said recess formed along its inward-facing surface; and said element bulges toward a central longitudinal axis of the member wall.
Claim 8
Dependent Claim
42 words
The valve assembly of claim 4 wherein: said first member comprises a circuital wall centered with respect to said path having said recess along its outward-facing surface; and said element bulges outwardly away from a central longitudinal axis of said member wall.
Claim 9
Dependent Claim
102 words
The valve assembly of claim 2 wherein: said first member in providing said recess with an inwardly facing floor has a circuital wall in centered relation with said path and an external sleeve, said wall having an external groove formed along its outer surface, said sleeve secured to an outer surface portion of said wall adjacent said groove on the side thereof away from said second member, said sleeve axially overlapping the groove and extending beyond said groove to fully form said inwardly-facing recess whereby said biased surface of the element is at least partially exposed for contact with the second member.
Claim 10
Dependent Claim
63 words
The valve assembly of claim 2 wherein: said first member comprises a circuital wall in centered relation with said path, and an inner sleeve attached to an inner surface portion of the member wall adjacent its end, said sleeve extending toward said second member to provide an external surface defining said element-receiving recess, said member end providing said side surface of the recess.
Claim 11
Dependent Claim
74 words
The valve assembly of claim 1 wherein: said first member comprises a detachable cap-like retainer normally secured to a body portion of the first member in centered relation with said path, said cap having a drum surface for supporting said element and a flange extending radially outwardly from the drum surface to a radius substantially less than the outer radius of the element, said drum surface being located between the flange and said body.
Claim 12
Dependent Claim
25 words
The valve assembly of claim 1 wherein: said circuital surface of the second member is beveled to an inclination substantially that of said biased surface.
Claim 13
Dependent Claim
114 words
The valve assembly of claim 1 wherein: said first member has a circuital wall defining a recess having a floor facing outwardly from center of said path, and a side surface facing lengthwise of said path toward the second member; a sleeve member secured to said wall adjacent to the recess on the side thereof further from the second member with a portion of the sleeve member overlapping at least a portion of the recess; and flange means on the first member spaced from said side surface for a distance of at least the width of said element and partially overlapping the radial thickness of the element to entrap the element in said recess.
Claim 14
Dependent Claim
41 words
The valve assembly of claim 1 wherein: said members having engageable porTions which define stop means apart from said element which limit closing movements of the members a short predetermined distance along said path beyond an initial engagement through said element.
Claim 15
Dependent Claim
26 words
The valve assembly of claim 1 wherein: said supporting means for the members comprises means for pivotably supporting one member for movement along an arcuate path.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-12 | 1978-02-11 | 1978-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-12 | 1982-02-11 | 1982-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-12 | 1986-02-11 | 1986-08-13 | $7700.00 | Window Closed / Lapsed |