Patent US3099994A successfully refreshed from Google Patents.
US3099994A
Expired / Lapsed
US
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Thermoelectric ignition safety device
Assignee: Vaillant GmbH
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Filing: 1961-02-10
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Granted: 1963-08-06
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Expires: 1981-02-10
Abstract
No abstract record available.
Inventors
- 👤 Putz Hans
- 👤 Lehnartz Robert
- 👤 Feldman Ernst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:02
CPC Classifications
F; F23; F23N; F23N5/00; F23N5/02; F23N5/10; F23N5/107; Y; Y10; Y10T; Y10T137/00; Y10T137/1407; Y10T137/1516
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
IN A GAS VALVE INCLUDING A BODY HAVING A MAIN GAS SUPPLY CONNECTION, A PILOT BURNER CONNECTION AND A MAIN BURNER CONNECTION, AND INCLUDING A THERMOELECTRIC MAGNET MEANS, THE IMPROVEMENT COMPRISING: A PILOT VALVE INCLUDING A FIRST CLOSURE MEMBER IN SAID BODY BETWEEN THE MAIN CONNECTION AND THE PILOT CONNECTION; FIRST OPERATING MEANS OPERATIVELY CONNECTED TO THE CLOSURE MEMBER AND THE ELECTROMAGNET MEANS TO HOLD THE CLOSURE MEMBER OPEN WHEN THE MAGNET MEANS IS ENERGIZED AND THE PILOT VALVE IS OTHERWISE OPENED, SAID OPERATING MEANS INCLUDING A MANUALLY OPERABLE MEMBER TO PERMIT THE PILOT VALVE TO
Claim 2
Dependent Claim
96 words
IN A GAS VALVE INCLUDING A BODY HAVING A MAIN GAS SUPPLY CONNECTION, A PILOT BURNER CONNECTION AND A MAIN BURNER CONNECTION, AND INCLUDING A THERMOELECTRIC MAGNET MEANS, THE IMPROVEMENT COMPRISING: A PILOT VALVE INCLUDING A FIRST CLOSURE MEMBER IN SAID BODY BETWEEN THE MAIN CONNECTION AND THE PILOT CONNECTION; FIRST OPERATING MEANS OPERATIVELY CONNECTED TO THE CLOSURE MEMBER AND THE ELECTROMAGNET MEANS TO HOLD THE CLOSURE MEMBER OPEN WHEN THE MAGNET MEANS IS ENERGIZED AND THE PILOT VALVE IS OTHERWISE OPENED, SAID OPERATING MEANS INCLUDING A MANUALLY OPERABLE MEMBER TO PERMIT THE PILOT VALVE TO
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) | 1966-08-05 | 1967-02-04 | 1967-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-05 | 1971-02-04 | 1971-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-05 | 1975-02-04 | 1975-08-06 | $7700.00 | Window Closed / Lapsed |