Patent US3120589A successfully refreshed from Google Patents.
US3120589A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Switch control apparatus, especially for gas burner valves
Assignee: American Gas Association Inc
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Filing: 1962-01-22
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Granted: 1964-02-04
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Expires: 1982-01-22
Abstract
No abstract record available.
Inventors
- 👤 Westberg Fred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:20
CPC Classifications
F; F23; F23Q; F23Q7/00; F23Q7/06; F23Q7/10; F23Q7/12; F24; F24C; F24C3/00; F24C3/10; H; H01; H01H; H01H3/00; H01H3/02; H01H3/0206
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
SWITCH CONTROL APPARATUS, AS FOR THE IGNITION OF A GAS BURNER HAVING A CONTROL VALVE, COMPRISING IN COMBINATION, A GAS CONTROL VALVE HAVING AN OPERATING SHAFT, A DISK MEMBER MOUNTED ON SAID SHAFT AND HAVING LIMITED CIRCUMFERENTIAL FREE MOVEMENT RELATIVE THERETO, A CONTACT ELEMENT CARRIED BY SAID SHAFT, A FIXED CONTACT MOUNTED ADJACENT SAID DISK MEMBER, AND AN INTERMEDIATE SWITCHING MEMBER CARRIED BY SAID DISK, SAID INTERMEDIATE MEMBER HAVING ONE CONTACT LOCATED WHERE IT WILL ENGAGE SAID FIXED CONTACT WHEN THE DISK IS ROTATED AND A SECOND CONTACT ARRANGED TO ENGAGE THE CONTACT ELEMENT CARRIED BY SAID SHAFT WHEN THE SHAFT IS BEING TURNED IN ONE DIRECTION BUT TO STAND AWAY FROM SAID SHAFT CONTACT WHEN THE SHAFT IS TURNED IN THE OTHER DIRECTION DUE TO THE CIRCUMFERENTIAL FREE MOVEMENT OF THE DISK ON THE SHAFT.
Claim 2
Dependent Claim
136 words
SWITCH CONTROL APPARATUS, AS FOR THE IGNITION OF A GAS BURNER HAVING A CONTROL VALVE, COMPRISING IN COMBINATION, A GAS CONTROL VALVE HAVING AN OPERATING SHAFT, A DISK MEMBER MOUNTED ON SAID SHAFT AND HAVING LIMITED CIRCUMFERENTIAL FREE MOVEMENT RELATIVE THERETO, A CONTACT ELEMENT CARRIED BY SAID SHAFT, A FIXED CONTACT MOUNTED ADJACENT SAID DISK MEMBER, AND AN INTERMEDIATE SWITCHING MEMBER CARRIED BY SAID DISK, SAID INTERMEDIATE MEMBER HAVING ONE CONTACT LOCATED WHERE IT WILL ENGAGE SAID FIXED CONTACT WHEN THE DISK IS ROTATED AND A SECOND CONTACT ARRANGED TO ENGAGE THE CONTACT ELEMENT CARRIED BY SAID SHAFT WHEN THE SHAFT IS BEING TURNED IN ONE DIRECTION BUT TO STAND AWAY FROM SAID SHAFT CONTACT WHEN THE SHAFT IS TURNED IN THE OTHER DIRECTION DUE TO THE CIRCUMFERENTIAL FREE MOVEMENT OF THE DISK ON THE SHAFT.
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) | 1967-02-03 | 1967-08-05 | 1968-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-03 | 1971-08-05 | 1972-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-03 | 1975-08-05 | 1976-02-04 | $7700.00 | Window Closed / Lapsed |