Patent US3131646A successfully refreshed from Google Patents.
US3131646A
Expired / Lapsed
US
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Hand pump
Assignee: PARCO PRODUCTS CO
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Filing: 1962-10-15
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Granted: 1964-05-05
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Expires: 1982-10-15
Abstract
No abstract record available.
Inventors
- 👤 Clarence F Parrott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:45
CPC Classifications
B; B05; B05B; B05B9/00; B05B9/03; B05B9/04; B05B9/0403; B05B9/0426; A; A62; A62C; A62C11/00; F; F04; F04B; F04B3/00; F04B3/003; F04B9/00; F04B9/14; F16; F16K; F16K15/00; F16K15/14; F16K15/144
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
179 words
A PORTABLE HAND PUMP FOR LIQUIDS COMPRISING A FLUID INLET SECTION HAVING AN INLET VALVE SEAT, A FLUID DELIVERY SECTION HAVING A DELIVERY VALVE SEAT, INNER AND OUTER HOLLOW LONGITUDINAL AXIALLY ALIGNED CYLINDERS TELESCOPING AT THEIR INNER ENDS, SAID CYLINDERS BEING RESPECTIVELY CONNECTED AT THEIR OUTER ENDS TO SAID SECTIONS, THE INNER ENDS OF EACH OF SAID CYLINDERS HAVING A GUIDE THEREON IN ENGAGEMENT WITH THE OTHER OF SAID CYLINDERS, AN INLET VALVE ASSEMBLY IN SAID INLET SECTION AT THE OUTER END OF ONE OF SAID CYLINDERS HAVING A HOLDING RING RETAINED BY SAID CYLINDER END AND HAVING A VALVE PLUG FOR ENGAGEMENT WITH SAID INLET VALVE SEAT AND MOVABLE TO OPEN POSITION FOR FLUID INLET, SAID INLET SECTION AND SAID CYLINDER END BEING SEPARABLE FOR INSERTION AND REMOVAL OF SAID INLET VALVE ASSEMBLY, A DELIVERY VALVE IN SAID DELIVERY SECTION AT THE OUTER END OF THE OTHER OF SAID CYLINDERS AND MOVABLE TO OPEN POSITION FOR FLUID DELIVERY, AND A CLOSURE MEMBER IN SAID DELIVERY SECTION ENGAGING SAID DELIVERY VALVE AND REMOVABLY RETAINING SAID DELIVERY VALVE IN POSITION.
Claim 2
Dependent Claim
179 words
A PORTABLE HAND PUMP FOR LIQUIDS COMPRISING A FLUID INLET SECTION HAVING AN INLET VALVE SEAT, A FLUID DELIVERY SECTION HAVING A DELIVERY VALVE SEAT, INNER AND OUTER HOLLOW LONGITUDINAL AXIALLY ALIGNED CYLINDERS TELESCOPING AT THEIR INNER ENDS, SAID CYLINDERS BEING RESPECTIVELY CONNECTED AT THEIR OUTER ENDS TO SAID SECTIONS, THE INNER ENDS OF EACH OF SAID CYLINDERS HAVING A GUIDE THEREON IN ENGAGEMENT WITH THE OTHER OF SAID CYLINDERS, AN INLET VALVE ASSEMBLY IN SAID INLET SECTION AT THE OUTER END OF ONE OF SAID CYLINDERS HAVING A HOLDING RING RETAINED BY SAID CYLINDER END AND HAVING A VALVE PLUG FOR ENGAGEMENT WITH SAID INLET VALVE SEAT AND MOVABLE TO OPEN POSITION FOR FLUID INLET, SAID INLET SECTION AND SAID CYLINDER END BEING SEPARABLE FOR INSERTION AND REMOVAL OF SAID INLET VALVE ASSEMBLY, A DELIVERY VALVE IN SAID DELIVERY SECTION AT THE OUTER END OF THE OTHER OF SAID CYLINDERS AND MOVABLE TO OPEN POSITION FOR FLUID DELIVERY, AND A CLOSURE MEMBER IN SAID DELIVERY SECTION ENGAGING SAID DELIVERY VALVE AND REMOVABLY RETAINING SAID DELIVERY VALVE IN POSITION.
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) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |