US3300174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas valve
Assignee: Emerson Electric Co
•
Filing: 1963-05-10
•
Granted: 1967-01-24
•
Expires: 1983-05-10
Abstract
No abstract record available.
Inventors
- 👤 Donald C Urban
- 👤 Carl A Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:23
CPC Classifications
F; F23; F23N; F23N5/00; F23N5/02; F23N5/10; F23N5/105; F23N2235/00; F23N2235/12; F23N2235/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
IN A GAS VALVE, A VALVE BODY HAVING AN INLET PASSAGE AN OUTLET PASSAGE, AND A VALVE CHAMBER THEREBETWEEN, A BIASED CLOSED VALVE IN SAID CHAMBER CONTROLLING THE FLOW FROM SAID INLET TO OUTLET PASSAGE INCLUDING A PRESSURE RESPONSIVE ACTUATOR OPERATIVE TO MOVE SAID VALVE OPENWARD WHEN GREATER FLUID PRESSURE IS APPLIED TO ONE SIDE THEREOF THAN TO THE OTHER, MEANS PROVIDING COMMUNICATION BETWEEN SAID INLET PASSAGE AND ONE SIDE OF SAID ACTUATOR, MEANS PROVIDING RELATIVELY RESTRICTED COMMUNICATION BETWEEN SAID INLET PASSAGE AND SAID OTHER SIDE OF SAID ACTUATOR, A BLEED PASSAGE PROVIDING RELATIVELY UNRESTRICTED COMMUNICATION BETWEEN SAID OTHER SIDE OF SAID ACTUATOR AND SAID OUTLET PASSAGE, A CONTROL VALVE MOVABLE TO OPEN AND CLOSE SAID BLEED PASSAGE, TWO PRESSURE REGULATING
Claim 2
Dependent Claim
121 words
IN A GAS VALVE, A VALVE BODY HAVING AN INLET PASSAGE AN OUTLET PASSAGE, AND A VALVE CHAMBER THEREBETWEEN, A BIASED CLOSED VALVE IN SAID CHAMBER CONTROLLING THE FLOW FROM SAID INLET TO OUTLET PASSAGE INCLUDING A PRESSURE RESPONSIVE ACTUATOR OPERATIVE TO MOVE SAID VALVE OPENWARD WHEN GREATER FLUID PRESSURE IS APPLIED TO ONE SIDE THEREOF THAN TO THE OTHER, MEANS PROVIDING COMMUNICATION BETWEEN SAID INLET PASSAGE AND ONE SIDE OF SAID ACTUATOR, MEANS PROVIDING RELATIVELY RESTRICTED COMMUNICATION BETWEEN SAID INLET PASSAGE AND SAID OTHER SIDE OF SAID ACTUATOR, A BLEED PASSAGE PROVIDING RELATIVELY UNRESTRICTED COMMUNICATION BETWEEN SAID OTHER SIDE OF SAID ACTUATOR AND SAID OUTLET PASSAGE, A CONTROL VALVE MOVABLE TO OPEN AND CLOSE SAID BLEED PASSAGE, TWO PRESSURE REGULATING
References Cited (Backward Citations)
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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) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |