US4896690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure and thermal relief valve
Assignee: Taylor Innovations LLC
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Filing: 1988-09-20
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Granted: 1990-01-30
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Expires: 2008-09-20
Abstract
Abstract In a thermal responsive relief valve, an elongated tubular valve body axially contains a strut secured at one end portion to the bore of the valve body and axially contained at its other end by a piston sealed with the valve body bore at one of its ends. A fusible material is interposed between one end portion of the strut and the valve member surrounding the last mentioned strut end portion.
Inventors
- 👤 Julian S. Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:52
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/02; F16K17/14; F16K17/40; F16K17/406; Y; Y10; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1797; Y10T137/1804; Y10T137/1842; Y10T137/1939; Y10T137/1963; Y10T137/1987
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
A thermal responsive relief valve, comprising: a valve body having an axial passageway therethrough; an elongated strut having opposing ends axially disposed in said body; means securing one end portion of said strut to the valve body within the body passageway; means closing the valve body passageway including thermally released means normally surrounding the end portion opposite said one end portion of said strut and projecting beyond the body in a manner permitting longitudinal sliding movement of the closing means toward the said one end of the valve body in a passageway opening action in response to a predetermined temperature or pressure adjacent the thermally released means, said passageway closing means further including a piston having an axial through bore adjacent and projecting at one end portion beyond one end of the body; and, an impermeable flexible sheath sealing said piston one end portion with said body one end.
Claim 2
Dependent Claim
149 words
A thermal responsive relief valve, comprising: a valve body having an axial passageway therethrough; an elongated strut having opposing ends axially disposed in said body; means securing one end portion of said strut to the valve body within the body passageway; means closing the valve body passageway including thermally released means normally surrounding the end portion opposite said one end portion of said strut and projecting beyond the body in a manner permitting longitudinal sliding movement of the closing means toward the said one end of the valve body in a passageway opening action in response to a predetermined temperature or pressure adjacent the thermally released means, said passageway closing means further including a piston having an axial through bore adjacent and projecting at one end portion beyond one end of the body; and, an impermeable flexible sheath sealing said piston one end portion with said body one end.
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) | 1993-01-29 | 1993-07-31 | 1994-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-01-29 | 1997-07-31 | 1998-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-01-29 | 2001-07-31 | 2002-01-30 | $7700.00 | Window Closed / Lapsed |