US3081034A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermostatic shut-off valve
Assignee: Powers Regulator Co
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Filing: 1960-08-10
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Granted: 1963-03-12
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Expires: 1980-08-10
Abstract
No abstract record available.
Inventors
- 👤 Eugene R Schumann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:14
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/01; G05D23/02; G05D23/021; G05D23/022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A THERMOSTATIC SHUT-OFF VALVE COMPRISING A VALVE SEAT MEMBER THROUGH WHICH THE LIQUID FLOWS, A MOVABLE VALVE MEMBER COOPERATING WITH SAID SEAT MEMBER FOR CONTROLLING THE FLOW THROUGH THE LATTER, SPRING MEANS WHEN IN AN EXTENDED POSITION ENGAGING SAID VALVE MEMBER AND BIASING THE SAME INTO ITS OPEN POSITION, MEANS FOR SENSING THE TEMPERATURE OF SAID LIQUID, SAID MEANS UPON SENSING A PREDETERMINED LIQUID TEMPERATURE COMPRESSING SAID SPRING MEANS FROM SAID EXTENDED POSITION, SAID MOVABLE VALVE MEMBER BEING RELIEVED FROM THE PRESSURE OF SAID SPRING MEANS WHEN SAID SPRING MEANS IS COMPRESSED FROM SAID EXTENDED POSITION, SAID MOVABLE VALVE MEMBER FURTHER BEING POSITIONED IN THE PATH OF SAID LIQUID FLOWING THROUGH SAID VALVE SO THAT SAID VALVE MEMBER IS MOVED BY SAID LIQUID INTO ENGAGEMENT WITH SAID VALVE SEAT MEMBER WHEN
Claim 2
Dependent Claim
131 words
A THERMOSTATIC SHUT-OFF VALVE COMPRISING A VALVE SEAT MEMBER THROUGH WHICH THE LIQUID FLOWS, A MOVABLE VALVE MEMBER COOPERATING WITH SAID SEAT MEMBER FOR CONTROLLING THE FLOW THROUGH THE LATTER, SPRING MEANS WHEN IN AN EXTENDED POSITION ENGAGING SAID VALVE MEMBER AND BIASING THE SAME INTO ITS OPEN POSITION, MEANS FOR SENSING THE TEMPERATURE OF SAID LIQUID, SAID MEANS UPON SENSING A PREDETERMINED LIQUID TEMPERATURE COMPRESSING SAID SPRING MEANS FROM SAID EXTENDED POSITION, SAID MOVABLE VALVE MEMBER BEING RELIEVED FROM THE PRESSURE OF SAID SPRING MEANS WHEN SAID SPRING MEANS IS COMPRESSED FROM SAID EXTENDED POSITION, SAID MOVABLE VALVE MEMBER FURTHER BEING POSITIONED IN THE PATH OF SAID LIQUID FLOWING THROUGH SAID VALVE SO THAT SAID VALVE MEMBER IS MOVED BY SAID LIQUID INTO ENGAGEMENT WITH SAID VALVE SEAT MEMBER WHEN
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) | 1966-03-11 | 1966-09-10 | 1967-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-11 | 1970-09-10 | 1971-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-11 | 1974-09-10 | 1975-03-12 | $7700.00 | Window Closed / Lapsed |