Patent US6487533B2 successfully refreshed from Google Patents.
Patent US3662761A successfully refreshed from Google Patents.
US3662761A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve structure with a u-shaped spring retainer
Assignee: TE Connectivity Corp
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Filing: 1970-03-23
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Granted: 1972-05-16
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Expires: 1990-03-23
Abstract
Abstract A valve has a body provided with a passageway therethrough. A valve seat is located along the passageway. A sealing member is biased into sealing engagement with the valve seat via a spring member. A U-shaped retaining member is disposed in the passageway and in engagement with the spring member; it has outwardly directed sharp ends that dig into the wall of the passageway to seat the sealing member onto the valve seat in accordance with a prescribed pressure under which the spring member is placed by the retaining member. A modification of a sealing skirt provides better sealing characteristics.
Inventors
- 👤 Joseph Willard Hoffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:46
CPC Classifications
F; F16; F16K; F16K41/00; F16K41/02; F16K41/08; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7922; Y10T137/7929; Y10T137/7937; Y10T137/8593; Y10T137/877; Y10T137/87829; Y10T137/87837; Y10T137/87861; Y10T29/00; Y10T29/49; Y10T29/49405; Y10T29/49412; Y10T29/53; Y10T29/53613; Y10T29/53622
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
123 words
A valve comprising: a valve member having a passageway extending therethrough, a valve seat in said passageway, a sealing member directed toward said valve seat, spring means in engagement with said sealing member, retaining means including a generally U-shaped elongated member of relatively narrow cross-section including a bight portion freely received in said spring means, said U-shaped member further including two leg portions integral with said bight portion and protruding from said spring means, with outwardly projecting portions provided on said leg portions in biting registration partially in a wall of said passageway and in compressing registration on said spring means, with said bight portion, said leg portions and said outwardly projecting leg portions being coplanar for minimizing internal obstruction of said passageway.
Claim 2
Dependent Claim
123 words
A valve comprising: a valve member having a passageway extending therethrough, a valve seat in said passageway, a sealing member directed toward said valve seat, spring means in engagement with said sealing member, retaining means including a generally U-shaped elongated member of relatively narrow cross-section including a bight portion freely received in said spring means, said U-shaped member further including two leg portions integral with said bight portion and protruding from said spring means, with outwardly projecting portions provided on said leg portions in biting registration partially in a wall of said passageway and in compressing registration on said spring means, with said bight portion, said leg portions and said outwardly projecting leg portions being coplanar for minimizing internal obstruction of said passageway.
Claim 3
Dependent Claim
41 words
A valve according to claim 1 wherein said leg portions include free ends, which free ends have tapered inner surfaces facilitating insertion of said retaining means in said passageway and providing sharp edges for biting into saiD wall of said passageway.
Claim 4
Dependent Claim
40 words
A valve according to claim 1 wherein said passageway includes equally spaced projections extending axially therealong from said valve seat to a position spaced from said valve seat to define guide means for guiding said sealing member along said passageway.
Claim 5
Dependent Claim
96 words
A valve according to claim 1 further comprising: a body member having a passage extending therethrough, said passage in said body member having a sealing section, said valve member being movably disposed in the passage in said body member, and a unitary sealing skirt on said valve member which is in sealing engagement with said sealing section and remains in sealing engagement with said sealing section during movement thereof along said sealing section, said sealing skirt having a bulbous section around a periphery thereof for engagement with said sealing section only in a small seal area.
Claim 6
Dependent Claim
52 words
The valve according to claim 4 wherein said sealing skirt has greater thickness at the junction of the skirt and the body member than at the end of said skirt, said increased thickness providing said skirt with greater resiliency so that said bulbous area bears against said sealing section with greater force.
Claim 7
Dependent Claim
35 words
A valve according to claim 1 wherein said spring means is a coil spring and said bight portion and said leg portions are disposed therewithin with said bight portion being directed toward said sealing member.
Claim 8
Dependent Claim
30 words
The structure as recited in claim 1, and further including: projecting portions in said passageway and receiving said sealing member therebetween for guiding said sealing member toward said valve seat.
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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) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |