US3242869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rectangular-piston pump
Assignee: Individual
•
Filing: 1964-07-15
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Granted: 1966-03-29
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Expires: 1984-07-15
Abstract
No abstract record available.
Inventors
- 👤 Walter D Komhyr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:04
CPC Classifications
F; F04; F04B; F04B53/00; F04B53/14; F04B19/00; F04B19/02; F04B53/16; F04B53/162
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
161 words
A PUMP COMPRISING, A RIGID MOUNTING PLATE, A CRANKSHAFT MOUNTED FOR ROTATION THROUGH SAID MOUNTING PLATE, A CRANK ARM CONNECTED TO SAID CRANKSHAFT, A CRANK PIN CONNECTED TO SAID CRANK ARM, A PISTON SHAFT ATTACHED TO SAID MOUNTING PLATE AND EXTENDING PARALLEL TO SAID CRANKSHAFT, A BASE PLATE SECURED TO SAID MOUNTING PLATE WITH SAID PISTON SHAFT EXTENDING THROUGH A HOLE THEREIN, A SUBSTANTIALLY RECTANGULAR-SHAPED PISTION PLATE DISPOSED AGAINST SAID BASE PLATE WITH SAID PISTON SHAFT ROTATABLY EXTENDING THROUGH A CENTRALLY-LOCATED HOLE THEREIN, ELONGATED INLET AND OUTLET PORTS DISPOSED IN SAID BASE PLATE SYMMETRICALLY ABOUT A LINE CONNECTING SAID CRANKSHAFT AND SAID PISTON SHAFT, SAID PORTS BEING SPACED APART A DISTANCE SLIGHTLY GREATER THAN THE WIDTH OF SAID PISTON PLATE AND EXTENDING FROM ADJACENT THE CORNERS OF SAID PISTON IN THE DIRECTION AWAY FROM SAID PISTON SHAFT A DISTANCE EQUAL TO SUBSTANTIALLY TWICE THE LENGTH OF SAID CRANK ARM, AN ELONGATED CYLINDER PLATE OF THE SAME THICKNESS AS SAID PISTON PLATE
Claim 2
Dependent Claim
161 words
A PUMP COMPRISING, A RIGID MOUNTING PLATE, A CRANKSHAFT MOUNTED FOR ROTATION THROUGH SAID MOUNTING PLATE, A CRANK ARM CONNECTED TO SAID CRANKSHAFT, A CRANK PIN CONNECTED TO SAID CRANK ARM, A PISTON SHAFT ATTACHED TO SAID MOUNTING PLATE AND EXTENDING PARALLEL TO SAID CRANKSHAFT, A BASE PLATE SECURED TO SAID MOUNTING PLATE WITH SAID PISTON SHAFT EXTENDING THROUGH A HOLE THEREIN, A SUBSTANTIALLY RECTANGULAR-SHAPED PISTION PLATE DISPOSED AGAINST SAID BASE PLATE WITH SAID PISTON SHAFT ROTATABLY EXTENDING THROUGH A CENTRALLY-LOCATED HOLE THEREIN, ELONGATED INLET AND OUTLET PORTS DISPOSED IN SAID BASE PLATE SYMMETRICALLY ABOUT A LINE CONNECTING SAID CRANKSHAFT AND SAID PISTON SHAFT, SAID PORTS BEING SPACED APART A DISTANCE SLIGHTLY GREATER THAN THE WIDTH OF SAID PISTON PLATE AND EXTENDING FROM ADJACENT THE CORNERS OF SAID PISTON IN THE DIRECTION AWAY FROM SAID PISTON SHAFT A DISTANCE EQUAL TO SUBSTANTIALLY TWICE THE LENGTH OF SAID CRANK ARM, AN ELONGATED CYLINDER PLATE OF THE SAME THICKNESS AS SAID PISTON PLATE
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) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |