Patent US3107680A successfully refreshed from Google Patents.
US3107680A
Expired / Lapsed
US
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Relay valve
Assignee: Powers Regulator Co
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Filing: 1961-06-06
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Granted: 1963-10-22
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Expires: 1981-06-06
Abstract
No abstract record available.
Inventors
- 👤 David H Thorburn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:44
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F15; F15B; F15B5/00; F15B5/003; Y; Y10; Y10T; Y10T137/00; Y10T137/2278; Y10T137/2409
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A RELAY DEVICE FOR GENERATING A PRESSURE PROPORTIONAL TO A SENSED CONDITION COMPRISING A SUBSTANTIALLY ENCLOSED CHAMBER HAVING AN INLET PORT ADAPTED TO BE CONNECTED TO A SOURCE OF PRESSURE AND AN OUTLET PORT ADAPTED TO BE CONNECTED TO MEANS FOR CONTROLLIN SAID SENSED CONDITION, A ROTATABLE SHAFT HAVING A LEVER MOUNTED THEREON, SAID LEVER HAVING AT LEAST ONE VALVING SURFACE THEREON ROTATABLE IN AND OUT OF ENGAGEMENT WITH SAID INLET PORT, AN EXHAUST CONDUIT HAVING AN OPENING IN SIAD CHAMBER FOR EXHAUSTING TO ATMOSPHERE, MEANS FOR BIASING SAID LEVER SO THAT SAID VALVING SURFACE NORMALLY
Claim 2
Dependent Claim
96 words
A RELAY DEVICE FOR GENERATING A PRESSURE PROPORTIONAL TO A SENSED CONDITION COMPRISING A SUBSTANTIALLY ENCLOSED CHAMBER HAVING AN INLET PORT ADAPTED TO BE CONNECTED TO A SOURCE OF PRESSURE AND AN OUTLET PORT ADAPTED TO BE CONNECTED TO MEANS FOR CONTROLLIN SAID SENSED CONDITION, A ROTATABLE SHAFT HAVING A LEVER MOUNTED THEREON, SAID LEVER HAVING AT LEAST ONE VALVING SURFACE THEREON ROTATABLE IN AND OUT OF ENGAGEMENT WITH SAID INLET PORT, AN EXHAUST CONDUIT HAVING AN OPENING IN SIAD CHAMBER FOR EXHAUSTING TO ATMOSPHERE, MEANS FOR BIASING SAID LEVER SO THAT SAID VALVING SURFACE NORMALLY
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) | 1966-10-21 | 1967-04-22 | 1967-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-21 | 1971-04-22 | 1971-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-21 | 1975-04-22 | 1975-10-22 | $7700.00 | Window Closed / Lapsed |