US3302583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Submersible pumps
Assignee: Conch International Methane Ltd
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Filing: 1965-01-07
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Granted: 1967-02-07
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Expires: 1985-01-07
Abstract
No abstract record available.
Inventors
- 👤 James W Hunt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:09
CPC Classifications
F; F16; F16C; F16C37/00; F16C37/007; F04; F04D; F04D13/00; F04D13/02; F04D13/06; F04D13/0653; F16C33/00; F16C33/30; F16C33/66; F16C33/6637; F16C33/6659; F16C33/6674
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A SUBMERSIBLE PUMP UNIT FOR DISCHARGING A LIQUEFIED HYDROCARBON GAS OR GAS MIXTURE AT OR NEAR ITS BOILING POINT COMPRISING (A) A PUMP HAVING AN OUTLET FOR DISCHARGING FLUID UNDER PRESSURE, (B) A MOTOR HAVING A SHAFT CONNECTED TO SAID PUMP FOR DRIVING SAME, AND HAVING BEARINGS FOR SAID SHAFT, (C) PASSAGE MEANS FROM THE OUTLET OF SAID PUMP TO SAID BEARINGS, SAID PASSAGE MEANS BEING DIMENSIONED TO CONDUCT FLUID FROM SAID PUMP OUTLET TO SAID BEARINGS AT SUBSTANTIALLY THE OUTLET PRESSURE OF THE PUMP, (D) FLOW MEANS IN THE BEARINGS FOR CONDUCTING SAID FLUID FROM SAID PASSAGE MEANS THROUGH THE BEARING AT SUBSTANTIALLY THE OUTLET PRESSURE OF THE PUMP, (E) FLOW RESTRICTION MEANS IN THE DIRECTION OF FLOW BEYOND SAID FLOW MEANS, FOR RESTRICTING THE FLOW OF
Claim 2
Dependent Claim
128 words
A SUBMERSIBLE PUMP UNIT FOR DISCHARGING A LIQUEFIED HYDROCARBON GAS OR GAS MIXTURE AT OR NEAR ITS BOILING POINT COMPRISING (A) A PUMP HAVING AN OUTLET FOR DISCHARGING FLUID UNDER PRESSURE, (B) A MOTOR HAVING A SHAFT CONNECTED TO SAID PUMP FOR DRIVING SAME, AND HAVING BEARINGS FOR SAID SHAFT, (C) PASSAGE MEANS FROM THE OUTLET OF SAID PUMP TO SAID BEARINGS, SAID PASSAGE MEANS BEING DIMENSIONED TO CONDUCT FLUID FROM SAID PUMP OUTLET TO SAID BEARINGS AT SUBSTANTIALLY THE OUTLET PRESSURE OF THE PUMP, (D) FLOW MEANS IN THE BEARINGS FOR CONDUCTING SAID FLUID FROM SAID PASSAGE MEANS THROUGH THE BEARING AT SUBSTANTIALLY THE OUTLET PRESSURE OF THE PUMP, (E) FLOW RESTRICTION MEANS IN THE DIRECTION OF FLOW BEYOND SAID FLOW MEANS, FOR RESTRICTING THE FLOW OF
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) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |