Patent US3362343A successfully refreshed from Google Patents.
US3362343A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid dispenser
Assignee: CLAMAR Inc
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Filing: 1966-03-01
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Granted: 1968-01-09
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Expires: 1986-03-01
Abstract
No abstract record available.
Inventors
- 👤 Otto H Duda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:52
CPC Classifications
B; B05; B05B; B05B11/00; B05B11/01; B05B11/10; B05B11/1042; B05B11/1059; B05B11/106; B05B11/1001
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
170 words
IN A RECIPROCATING LIQUID PUMP, INCLUDING A PUMP CYLINDER HAVING AN INLET PORT THROUGH ONE AXIAL END THEREOF, AN INLET VALVE DISPOSED IN SAID CYLINDER FOR AXIAL MOVEMENT WITHIN PRE-DETERMINED LIMITS INTO AND FROM SEATING RELATION WITH SAID INLET PORT, AND A PLUNGER DISPOSED FOR AXIAL MOVEMENT WITHIN PRE-DETERMINED LIMITS IN SAID CYLINDER ON SUCTION AND COMPRESSION STROKES RESPECTIVELY AWAY FROM AND TOWARD SAID INLET PORT, SAID PLUNGER BEING PROVIDED WITH AN AXIAL DISCHARGE PASSAGE THERETHROUGH; THE IMPROVEMENTS COMPRISING: (A) A PAIR OF RELATIVELY AXIALLY-SPACED SEALING VALVE SEATS WITHIN SAID PLUNGER AND AROUND SAID PASSAGE, AND RESPECTIVELY DEFINING PORTS OF SMALLER CROSS SECTIONAL AREA THAN THE DISCHARGE PASSAGE; (B) A SUBSTANTIALLY-RIGID VALVE STEM AFFIXED TO SAID INLET VALVE AND EXTENDING AXIALLY THEREFROM INTO SAID PASSAGE FOR RELATIVE AXIAL MOVEMENT THEREIN; AND (C) A SEALING VALVE FIXED TO SAID VALVE STEM WITHIN THE PASSAGE FOR RELATIVE MOVEMENT BETWEEN SAID SEALING VALVE SEATS AND FOR ALTERNATE SEATING ENGAGEMENT WITH SAID SEALING VALVE SEATS AT OPPOSITE LIMITS OF THE MOVEMENT OF THE PLUNGER.
Claim 2
Dependent Claim
170 words
IN A RECIPROCATING LIQUID PUMP, INCLUDING A PUMP CYLINDER HAVING AN INLET PORT THROUGH ONE AXIAL END THEREOF, AN INLET VALVE DISPOSED IN SAID CYLINDER FOR AXIAL MOVEMENT WITHIN PRE-DETERMINED LIMITS INTO AND FROM SEATING RELATION WITH SAID INLET PORT, AND A PLUNGER DISPOSED FOR AXIAL MOVEMENT WITHIN PRE-DETERMINED LIMITS IN SAID CYLINDER ON SUCTION AND COMPRESSION STROKES RESPECTIVELY AWAY FROM AND TOWARD SAID INLET PORT, SAID PLUNGER BEING PROVIDED WITH AN AXIAL DISCHARGE PASSAGE THERETHROUGH; THE IMPROVEMENTS COMPRISING: (A) A PAIR OF RELATIVELY AXIALLY-SPACED SEALING VALVE SEATS WITHIN SAID PLUNGER AND AROUND SAID PASSAGE, AND RESPECTIVELY DEFINING PORTS OF SMALLER CROSS SECTIONAL AREA THAN THE DISCHARGE PASSAGE; (B) A SUBSTANTIALLY-RIGID VALVE STEM AFFIXED TO SAID INLET VALVE AND EXTENDING AXIALLY THEREFROM INTO SAID PASSAGE FOR RELATIVE AXIAL MOVEMENT THEREIN; AND (C) A SEALING VALVE FIXED TO SAID VALVE STEM WITHIN THE PASSAGE FOR RELATIVE MOVEMENT BETWEEN SAID SEALING VALVE SEATS AND FOR ALTERNATE SEATING ENGAGEMENT WITH SAID SEALING VALVE SEATS AT OPPOSITE LIMITS OF THE MOVEMENT OF THE PLUNGER.
References Cited (Backward Citations)
US3228347A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-08 | 1971-07-10 | 1972-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-08 | 1975-07-10 | 1976-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-08 | 1979-07-10 | 1980-01-09 | $7700.00 | Window Closed / Lapsed |