US3285180A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil burner pump
Assignee: White Consolidated Industries Inc
•
Filing: 1963-12-20
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Granted: 1966-11-15
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Expires: 1983-12-20
Abstract
No abstract record available.
Inventors
- 👤 Robert A Mccallum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:04
CPC Classifications
F; F04; F04C; F04C15/00; F04C15/06; F04C14/00; F04C14/24; F23; F23K; F23K5/00; F23K5/02; F23K5/14; F23K5/142
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
IN A FLUID PUMP ADAPTED FOR USE WITH AN OIL BURNER OR THE LIKE, THE COMBINATION OF A HOUSING HAVING AN INLET AND AN OUTLET AND A CAVITY THEREIN, PUMP MEANS IN SAID CAVITY, INLET PASSAGE MEANS CONNECTING SAID INLET WITH SAID CAVITY, OUTLET PASSAGE MEANS CONNECTING SAID CAVITY WITH SAID OUTLET, AND FLOW CONTROL MEANS INCLUDING VALVE MEANS RESPONSIVE TO THE DIFFERENCE BETWEEN SUCTION PRESSURE IN SAID INLET PASSAGE MEANS AND ATMOSPHERIC PRESSURE FOR VARYING THE POSITION TO THE FORCE RESULTING FLOW CONTROL MEANS ALSO INCLUDING SPRING MEANS ACTING ON SAID VALVE MEANS IN OPPOSITION TO THE FORCE RESULTING FROM THE DIFFERENCE BETWEEN SUCTION AND ATMOSPHERIC PRESSURE, AND A PLATE EXTENDING TRANSVERSELY OF SAID INLET PASSAGE MEANS AND HAVING AN OPENING THEREIN HAVING A SIDE WALL TAPERING INWARDLY TOWARD THE DOWNSTREAM SIDE OF SAID PLATE, SAID OPENING DEFINING A METERING ORIFICE COOPERATING WITH SAID VALVE MEANS TO CONTROL FLUID FLOW TO SAID PUMP MEANS.
Claim 2
Dependent Claim
155 words
IN A FLUID PUMP ADAPTED FOR USE WITH AN OIL BURNER OR THE LIKE, THE COMBINATION OF A HOUSING HAVING AN INLET AND AN OUTLET AND A CAVITY THEREIN, PUMP MEANS IN SAID CAVITY, INLET PASSAGE MEANS CONNECTING SAID INLET WITH SAID CAVITY, OUTLET PASSAGE MEANS CONNECTING SAID CAVITY WITH SAID OUTLET, AND FLOW CONTROL MEANS INCLUDING VALVE MEANS RESPONSIVE TO THE DIFFERENCE BETWEEN SUCTION PRESSURE IN SAID INLET PASSAGE MEANS AND ATMOSPHERIC PRESSURE FOR VARYING THE POSITION TO THE FORCE RESULTING FLOW CONTROL MEANS ALSO INCLUDING SPRING MEANS ACTING ON SAID VALVE MEANS IN OPPOSITION TO THE FORCE RESULTING FROM THE DIFFERENCE BETWEEN SUCTION AND ATMOSPHERIC PRESSURE, AND A PLATE EXTENDING TRANSVERSELY OF SAID INLET PASSAGE MEANS AND HAVING AN OPENING THEREIN HAVING A SIDE WALL TAPERING INWARDLY TOWARD THE DOWNSTREAM SIDE OF SAID PLATE, SAID OPENING DEFINING A METERING ORIFICE COOPERATING WITH SAID VALVE MEANS TO CONTROL FLUID FLOW TO SAID PUMP MEANS.
References Cited (Backward Citations)
US1757514A
Cited
US1791363A
Cited
US2044867A
Cited
US2468118A
Cited
US2829601A
Cited
US2779533A
Cited
US2918009A
Cited
US3057546A
Cited
US2992769A
Cited
US3089430A
Cited
US3016184A
Cited
US3088660A
Cited
US3117525A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |