US3289592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wave operated pump
Assignee: Individual
•
Filing: 1965-02-16
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Granted: 1966-12-06
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Expires: 1985-02-16
Abstract
No abstract record available.
Inventors
- 👤 John K Franzreb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:14
CPC Classifications
B; B63; B63B; B63B13/00; B63H; B63H19/00; B63H19/02; Y; Y02; Y02T; Y02T70/00; Y02T70/50; Y02T70/5218; Y02T70/5236
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
A BOAT PUMP COMPRISING A PUMP CYLINDER, A PUMP PISTON RECIPROCATORY MOUNTED IN SAID CYLINDER, MEANS SUPPORTING ONE OF SAID PUMP PARTS ON A BOAT, A FLOAT ADAPTED TO BE SUPPORTED IN WATER SURROUNDING THE BOAT AND SUPPORTING THE OTHER PUMP PART, AN OUTLET PORT OPENING THROUGH THE UPPER END OF SAID CYLINDER, AN INLET PORT OPENING THROUGH THE LOWER END OF THE CYLINDER, A CONDUIT HAVING AN OUTLET END CONNECTED TO SAID INLET PORT AND AN INLET END ADAPTED TO BE DISPOSED IN THE BILGE OF THE BOAT, SAID PISTON HAVING A PASSAGE EXTENDING THERETHROUGH, AN UPWARDLY OPENING CHECK VALVE FOR CLOSING THE PISTON PASSAGE DURING MOVEMENT OF THE PISTON TOWARD THE UPPER END OF THE CYLINDER, A CHECK VALVE FOR CLOSING SAID CONDUIT WHEN THE PISTON IS MOVING TOWARD THE LOWER END OF THE CYLINDER, AND FLOAT ACTUATED MEANS CONNECTED TO THE INLET END OF THE CONDUIT FOR CLOSING THE INLET END OF THE CONDUIT WHEN THE LIQUID LEVEL IN THE BOAT BILGE FALLS BELOW A PREDETERMINED POINT TO PREVENT OPERATION OF THE PUMP.
Claim 2
Dependent Claim
176 words
A BOAT PUMP COMPRISING A PUMP CYLINDER, A PUMP PISTON RECIPROCATORY MOUNTED IN SAID CYLINDER, MEANS SUPPORTING ONE OF SAID PUMP PARTS ON A BOAT, A FLOAT ADAPTED TO BE SUPPORTED IN WATER SURROUNDING THE BOAT AND SUPPORTING THE OTHER PUMP PART, AN OUTLET PORT OPENING THROUGH THE UPPER END OF SAID CYLINDER, AN INLET PORT OPENING THROUGH THE LOWER END OF THE CYLINDER, A CONDUIT HAVING AN OUTLET END CONNECTED TO SAID INLET PORT AND AN INLET END ADAPTED TO BE DISPOSED IN THE BILGE OF THE BOAT, SAID PISTON HAVING A PASSAGE EXTENDING THERETHROUGH, AN UPWARDLY OPENING CHECK VALVE FOR CLOSING THE PISTON PASSAGE DURING MOVEMENT OF THE PISTON TOWARD THE UPPER END OF THE CYLINDER, A CHECK VALVE FOR CLOSING SAID CONDUIT WHEN THE PISTON IS MOVING TOWARD THE LOWER END OF THE CYLINDER, AND FLOAT ACTUATED MEANS CONNECTED TO THE INLET END OF THE CONDUIT FOR CLOSING THE INLET END OF THE CONDUIT WHEN THE LIQUID LEVEL IN THE BOAT BILGE FALLS BELOW A PREDETERMINED POINT TO PREVENT OPERATION OF THE PUMP.
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) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |