Patent US2562375A successfully refreshed from Google Patents.
Patent US3127845A successfully refreshed from Google Patents.
US3127845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump design
Assignee: Individual
•
Filing: 1960-10-03
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Granted: 1964-04-07
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Expires: 1980-10-03
Abstract
No abstract record available.
Inventors
- 👤 Carl S Voelcker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:39
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/08; F02; F02M; F02M59/00; F04B43/0009; F04B43/0081; F04B43/009; F02M2700/00; F02M2700/13; F02M2700/1317; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7922; Y10T137/7927; Y10T137/7928
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A HIGH-PRESSURE METERING PUMP COMPRISING A HOUSING, A FIRST TUBULAR ELEMENT MADE OF AN INCOMPRESSIBLE FLEXIBLE ELASTOMER, A SECOND TUBULAR ELEMENT MADE OF AN INCOMPRESSIBLE FLEXIBLE ELASTOMER SURROUNDING SAID FIRST TUBULAR ELEMENT AND CONTAINED WITHIN SAID HOUSING, A RECIPROCALLY MOVABLE PLUNGER EXTENDING THROUGH A SIDE WALL OF SAID HOUSING AND ENGAGING SAID SECOND TUBULAR ELEMENT, PLUNGER MOVING MEANS, AN INLET CHECK VALVE MEANS AT ONE END OF SAID HOUSING AND CLOSING ONE END OF SAID FIRST TUBULAR ELEMENT, AND AN OUTLET CHECK VALVE MEANS AT THE OTHER END OF SAID HOUSING ENCLOSING THE OTHER END OF SAID FIRST TUBULAR ELEMENT; SAID HOUSING AND SAID PLUNGER ENGAGING AND CONFINING THE ENTIRE OUTER SURFACE OF SAID SECOND TUBULAR ELEMENT.
Claim 2
Dependent Claim
117 words
A HIGH-PRESSURE METERING PUMP COMPRISING A HOUSING, A FIRST TUBULAR ELEMENT MADE OF AN INCOMPRESSIBLE FLEXIBLE ELASTOMER, A SECOND TUBULAR ELEMENT MADE OF AN INCOMPRESSIBLE FLEXIBLE ELASTOMER SURROUNDING SAID FIRST TUBULAR ELEMENT AND CONTAINED WITHIN SAID HOUSING, A RECIPROCALLY MOVABLE PLUNGER EXTENDING THROUGH A SIDE WALL OF SAID HOUSING AND ENGAGING SAID SECOND TUBULAR ELEMENT, PLUNGER MOVING MEANS, AN INLET CHECK VALVE MEANS AT ONE END OF SAID HOUSING AND CLOSING ONE END OF SAID FIRST TUBULAR ELEMENT, AND AN OUTLET CHECK VALVE MEANS AT THE OTHER END OF SAID HOUSING ENCLOSING THE OTHER END OF SAID FIRST TUBULAR ELEMENT; SAID HOUSING AND SAID PLUNGER ENGAGING AND CONFINING THE ENTIRE OUTER SURFACE OF SAID SECOND TUBULAR ELEMENT.
References Cited (Backward Citations)
US247142A
Cited
US1377583A
Cited
US1965006A
Cited
US2042216A
Cited
US2243144A
Cited
US2285974A
Cited
US2481713A
Cited
US2836121A
Cited
US2912791A
Cited
US2963014A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-07 | 1967-10-07 | 1968-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-07 | 1971-10-07 | 1972-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-07 | 1975-10-07 | 1976-04-07 | $7700.00 | Window Closed / Lapsed |