Patent US3340899A successfully refreshed from Google Patents.
US3340899A
Expired / Lapsed
US
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Temperature compensated flow control valve
Assignee: Fawn Engineering Co
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Filing: 1962-08-09
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Granted: 1967-09-12
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Expires: 1982-08-09
Abstract
No abstract record available.
Inventors
- 👤 Welty Frank
- 👤 Raymond D Welty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:09
CPC Classifications
B; B67; B67D; B67D1/00; B67D1/08; B67D1/12; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7737; Y10T137/7837; Y10T137/7879
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
A TEMPERATURE COMPENSATED LIQUID FLOW CONTROL VALVE COMPRISING A BODY MEMBER HAVING A PASSAGE FOR LIQUID THERETHROUGH, AN ORIFICED BARRIER IN SAID PASSAGE, A RESILIENT DEFORMABLE MEMBER SEATED ON THE UPSTREAM SIDE OF SAID BARRIER AND FORMING WITH THE ORIFICE OPENING IN SAID BARRIER MEANS TO CONTROL THE FLOW OF LIQUID THROUGH SAID PASSAGE, MEANS TO EXERT A YIELDING PRESSURE ON SAID DEFORMABLE MEMBER IN A DIRECTION TENDING TO SEAT THE DEFORMABLE MEMBER ON SAID BARRIER, THE ARRANGEMENT BEING SUCH THAT UPON AN INCREASED FLUID PRESSURE ACTING ON THE UPSTREAM SIDE OF SAID DEFORMABLE MEMBER SAID ORIFICE OPENING IS DECREASED IN EFFECTIVE CROSS-SECTIONAL AREA, AND SAID MEANS TO EXERT A YIELDING PRESSURE BEING TEMPERATURE RESPONSIVE WHEREBY THE PRESSURE IS REDUCED UPON A DECREASE IN TEMPERATURE OF THE LIQUID IMPINGING ON THE UPSTREAM SIDE OF SAID DEFORMABLE MEMBER.
Claim 2
Dependent Claim
137 words
A TEMPERATURE COMPENSATED LIQUID FLOW CONTROL VALVE COMPRISING A BODY MEMBER HAVING A PASSAGE FOR LIQUID THERETHROUGH, AN ORIFICED BARRIER IN SAID PASSAGE, A RESILIENT DEFORMABLE MEMBER SEATED ON THE UPSTREAM SIDE OF SAID BARRIER AND FORMING WITH THE ORIFICE OPENING IN SAID BARRIER MEANS TO CONTROL THE FLOW OF LIQUID THROUGH SAID PASSAGE, MEANS TO EXERT A YIELDING PRESSURE ON SAID DEFORMABLE MEMBER IN A DIRECTION TENDING TO SEAT THE DEFORMABLE MEMBER ON SAID BARRIER, THE ARRANGEMENT BEING SUCH THAT UPON AN INCREASED FLUID PRESSURE ACTING ON THE UPSTREAM SIDE OF SAID DEFORMABLE MEMBER SAID ORIFICE OPENING IS DECREASED IN EFFECTIVE CROSS-SECTIONAL AREA, AND SAID MEANS TO EXERT A YIELDING PRESSURE BEING TEMPERATURE RESPONSIVE WHEREBY THE PRESSURE IS REDUCED UPON A DECREASE IN TEMPERATURE OF THE LIQUID IMPINGING ON THE UPSTREAM SIDE OF SAID DEFORMABLE MEMBER.
References Cited (Backward Citations)
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Cited
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Cited
US3189125A
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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) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |