US3269324A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pumps
Assignee: Tait Manufacturing Co
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Filing: 1964-12-30
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Granted: 1966-08-30
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Expires: 1984-12-30
Abstract
No abstract record available.
Inventors
- 👤 Albert D Van Atta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:02
CPC Classifications
F; F04; F04D; F04D13/00; F04D13/02; F04D13/06; F04D13/08; F04D13/10; F04D29/00; F04D29/04; F04D29/043; F04D29/044; F04D29/18; F04D29/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
A SUBMERSIBLE PUMP COMPRISING A MOTOR HAVING A SUBMERSIBLE CASING AND INCLUDING A PROJECTING MOTOR SHAFT, MEANS DEFINING A MULTI-STAGE PUMP HOUSING RIGIDLY CONNECTED TO ONE END OF SAID MOTOR CASING, A PLURLAITY OF IMPELLERS SPACED IN STACKED RELATIONSHIP WITHIN SAID HOUSING, A SEPARATE SHAFT SEGMENT EXTENDING THROUGH THE HUB OF EACH OF SAID IMPELLERS AND CONNECTED THERETO FOR POSITIVE ROTATION, MEANS ON SAID SHAFT SEGMENTS PROVIDING A SOCKET ENGAGEMENT BETWEEN EACH PAIR OF ADJACENT SAID SEGMENTS TO MAINTAIN AXIAL ALIGNMENT AND POSITIVE DRIVE THEREBETWEEN, COUPLING MEANS MOUNTED ON SAID MOTOR SHAFT FOR PROVIDING A POSITIVE DRIVE CONNECTION AND AXIAL ALIGNMENT BETWEEN SAID MOTOR SHAFT AND THE ADJACENT SAID SHAFT SEGMENT, BEARING MEANS AFFIXED TO SAID HOUSING FOR ROTATABLY SUPPORTING AT LEAST ONE OF SAID SHAFT SEGMENTS, AND MEANS FOR RETAINING SAID SHAFT SEGMENTS IN SAID ENGAGED RELATIONSHIP.
Claim 2
Dependent Claim
138 words
A SUBMERSIBLE PUMP COMPRISING A MOTOR HAVING A SUBMERSIBLE CASING AND INCLUDING A PROJECTING MOTOR SHAFT, MEANS DEFINING A MULTI-STAGE PUMP HOUSING RIGIDLY CONNECTED TO ONE END OF SAID MOTOR CASING, A PLURLAITY OF IMPELLERS SPACED IN STACKED RELATIONSHIP WITHIN SAID HOUSING, A SEPARATE SHAFT SEGMENT EXTENDING THROUGH THE HUB OF EACH OF SAID IMPELLERS AND CONNECTED THERETO FOR POSITIVE ROTATION, MEANS ON SAID SHAFT SEGMENTS PROVIDING A SOCKET ENGAGEMENT BETWEEN EACH PAIR OF ADJACENT SAID SEGMENTS TO MAINTAIN AXIAL ALIGNMENT AND POSITIVE DRIVE THEREBETWEEN, COUPLING MEANS MOUNTED ON SAID MOTOR SHAFT FOR PROVIDING A POSITIVE DRIVE CONNECTION AND AXIAL ALIGNMENT BETWEEN SAID MOTOR SHAFT AND THE ADJACENT SAID SHAFT SEGMENT, BEARING MEANS AFFIXED TO SAID HOUSING FOR ROTATABLY SUPPORTING AT LEAST ONE OF SAID SHAFT SEGMENTS, AND MEANS FOR RETAINING SAID SHAFT SEGMENTS IN SAID ENGAGED RELATIONSHIP.
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) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |