Patent US3272143A successfully refreshed from Google Patents.
US3272143A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Demand fuel regulator and priming pump
Assignee: Ohlsson and Rice Inc
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Filing: 1963-05-20
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Granted: 1966-09-13
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Expires: 1983-05-20
Abstract
No abstract record available.
Inventors
- 👤 Henry T M Rice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:11
CPC Classifications
F; F02; F02M; F02M17/00; F02M17/02; F02M17/04; F02M1/00; F02M1/16; F02M2700/00; F02M2700/43; F02M2700/4302; F02M2700/4335; F02M2700/4338; Y; Y10; Y10S; Y10S261/00; Y10S261/68; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7748; Y10T137/7752; Y10T137/7781; Y10T137/8593; Y10T137/87917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
191 words
IN A FUEL REGULATOR AND PRIMING PUMP: HOUSING MEANS HAVING A CHAMBER THEREIN PROVIDED WITH AN INLET PASSAGE AND A SINGLE OUTLET PASSAGE; AN INLET VALVE CONTROLLING FLOW OF FUEL FROM SAID INLET PASSAGE INTO SAID CHAMBER; A DISCHARGE VALVE CONTROLLING FLOW OF FLUID FROM SAID CHAMBER INTO SAID OUTLET PASSAGE; VALVE ACTUATING MEANS ENGAGING SAID INLET VALVE AND URGING SAID INLET VALVE TO CLOSED POSITION; DIAPHRAGM MEANS SECURED TO SAID HOUSING MEANS ACROSS SAID CHAMBER AND ENGAGEABLE WITH SAID VALVE ACTUATING MEANS TO SHIFT SAID VALVE ACTUATING MEANS IN RESPONSE TO THE PRESSURE IN SAID CHAMBER TO CONTROL OPENING OF SAID INLET VALVE; SAID DISPHRAGM MEANS BEING CONSTRUCTED AND ARRANGED TO SHIFT IN SAID HOUSING IN A DIRECTION TO DRAW FUEL FROM SAID INLET PASSAGE PAST SAID INLET VALVE INTO SAID CHAMBER; AND MEANS ENGAGEABLE WITH SAID DIAPHRAGM MEANS FOR RECIPROCATING SAID DIAPHRAGM MEANS IN SAID CHAMBER TO ALTERNATELY ENABLE SAID DISCHARGE VALVE TO CLOSE AND DRAW FUEL FROM SAID INLET PASSAGE PAST SAID INLET VALVE INTO SAID CHAMBER AND ENABLE SAID INLET VALVE TO CLOSE AND DISCHARGE FUEL FROM SAID CHAMBER PAST SAID DISCHARGE VALVE INTO SAID OUTLET PASSAGE.
Claim 2
Dependent Claim
191 words
IN A FUEL REGULATOR AND PRIMING PUMP: HOUSING MEANS HAVING A CHAMBER THEREIN PROVIDED WITH AN INLET PASSAGE AND A SINGLE OUTLET PASSAGE; AN INLET VALVE CONTROLLING FLOW OF FUEL FROM SAID INLET PASSAGE INTO SAID CHAMBER; A DISCHARGE VALVE CONTROLLING FLOW OF FLUID FROM SAID CHAMBER INTO SAID OUTLET PASSAGE; VALVE ACTUATING MEANS ENGAGING SAID INLET VALVE AND URGING SAID INLET VALVE TO CLOSED POSITION; DIAPHRAGM MEANS SECURED TO SAID HOUSING MEANS ACROSS SAID CHAMBER AND ENGAGEABLE WITH SAID VALVE ACTUATING MEANS TO SHIFT SAID VALVE ACTUATING MEANS IN RESPONSE TO THE PRESSURE IN SAID CHAMBER TO CONTROL OPENING OF SAID INLET VALVE; SAID DISPHRAGM MEANS BEING CONSTRUCTED AND ARRANGED TO SHIFT IN SAID HOUSING IN A DIRECTION TO DRAW FUEL FROM SAID INLET PASSAGE PAST SAID INLET VALVE INTO SAID CHAMBER; AND MEANS ENGAGEABLE WITH SAID DIAPHRAGM MEANS FOR RECIPROCATING SAID DIAPHRAGM MEANS IN SAID CHAMBER TO ALTERNATELY ENABLE SAID DISCHARGE VALVE TO CLOSE AND DRAW FUEL FROM SAID INLET PASSAGE PAST SAID INLET VALVE INTO SAID CHAMBER AND ENABLE SAID INLET VALVE TO CLOSE AND DISCHARGE FUEL FROM SAID CHAMBER PAST SAID DISCHARGE VALVE INTO SAID OUTLET PASSAGE.
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) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |