US3228347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump
Assignee: Silgan Dispensing Systems Corp
•
Filing: 1963-10-24
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Granted: 1966-01-11
•
Expires: 1983-10-24
Abstract
No abstract record available.
Inventors
- 👤 Douglas F Corsette
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:17
CPC Classifications
B; B05; B05B; B05B11/00; B05B11/0005; B05B11/0062; B05B11/0064; B05B11/007; B05B11/01; B05B11/10; B05B11/1001; B05B11/1021; B05B11/1022; B05B11/1042; B05B11/1059; B05B11/106; B05B11/1066; B05B11/0037; B05B11/0039; B05B11/0044; B05B11/107
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A PUMP COMPRISING A PUMP CYLINDER HAVING AN INLET PORT OPENING AXIALLY THROUGH ONE END THEREOF, A PLUNGER DISPOSED FOR RECIPROCATION IN SAID CYLINDER AND THEREWITH DEFINING A VARIABLE VOLUME PUMP CHAMBER BETWEEN SAID PLUNGER AND SAID ONE END, AN INLET VALVE DISPOSED IN SAID CYLINDER FOR LIMITED AXIAL MOVEMENT INTO AND FROM SEATING RELATION WITH RESPECT OT SAID INLET PORT, SAID PLUNGER BEING FORMED WITH AN AXIAL OPENING THERETHROUGH DEFINING PART OF AN OUTLET PASSAGE FROM SAID PUMP CHAMBER, SAID INLET VALVE HAVING AN AXIALLY EXTENDING VALVE STEM FIXED THERETO AND SLIDABLY RECEIVED IN SAID OPENING, AN OUTLET VALVE IN SAID OPENING SURROUNDING AND FRICTIONALLY SLIDABLY ENGAGING SAID INLET VALVE STEM, MEANS ESTABLISHING A POSITIVE DRIVING CONNECTION BETWEEN SAID PLUNGER AND SAID OUTLET IN BOTH DIRECTIONS OF RECIPROCATION OF THE PLUNGER, AND MEANS IN SAID CYLINDER FOR LIMITING THE AXIAL UNSEATING MOVEMENT OF SAID INLET VALVE.
Claim 2
Dependent Claim
147 words
A PUMP COMPRISING A PUMP CYLINDER HAVING AN INLET PORT OPENING AXIALLY THROUGH ONE END THEREOF, A PLUNGER DISPOSED FOR RECIPROCATION IN SAID CYLINDER AND THEREWITH DEFINING A VARIABLE VOLUME PUMP CHAMBER BETWEEN SAID PLUNGER AND SAID ONE END, AN INLET VALVE DISPOSED IN SAID CYLINDER FOR LIMITED AXIAL MOVEMENT INTO AND FROM SEATING RELATION WITH RESPECT OT SAID INLET PORT, SAID PLUNGER BEING FORMED WITH AN AXIAL OPENING THERETHROUGH DEFINING PART OF AN OUTLET PASSAGE FROM SAID PUMP CHAMBER, SAID INLET VALVE HAVING AN AXIALLY EXTENDING VALVE STEM FIXED THERETO AND SLIDABLY RECEIVED IN SAID OPENING, AN OUTLET VALVE IN SAID OPENING SURROUNDING AND FRICTIONALLY SLIDABLY ENGAGING SAID INLET VALVE STEM, MEANS ESTABLISHING A POSITIVE DRIVING CONNECTION BETWEEN SAID PLUNGER AND SAID OUTLET IN BOTH DIRECTIONS OF RECIPROCATION OF THE PLUNGER, AND MEANS IN SAID CYLINDER FOR LIMITING THE AXIAL UNSEATING MOVEMENT OF SAID INLET VALVE.
References Cited (Backward Citations)
US96099A
Cited
US1892196A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |