US3304877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Submerged motor driven pumping system
Assignee: JC CARTER COMPANY Inc A CORP OF
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Filing: 1965-06-08
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Granted: 1967-02-21
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Expires: 1985-06-08
Abstract
Abstract 1,096,400. Cooling electric motors. J. C. CARTER CO. June 6, 1966 [June 8, 1965], No. 25031/66. Heading H2A. [Also in Divisions F1 and F2] An electric motor M surmounts a pump 85 and is lubricated by lubricant from an external source. Lubricant passes via line 114 to chamber 120 adjacent shaft bearing 80, and via 115 to a chamber adjacent to shaft bearing 57. Lubricant escapes to fill the motor compartment and exits by overflow line 116, valve 117, sealed chamber 76, and line 66. The motorpump unit is submerged in a medium and pump 85 pumps the medium through the annular space 38 around the motor compartment. The lubricant may heat or cool the motor.
Inventors
- 👤 James C Carter
- 👤 Louis R Smith
- 👤 Donald A Kaessen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:40
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/06; F04D29/061; B; B63; B63B; B63B13/00; F04D13/00; F04D13/02; F04D13/06; F04D13/08; F04D13/086; F04D29/18; F04D29/22; F04D29/2261; F04D29/2277
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
201 words
A SUBMERGED MOTOR DRIVEN CARGO PUMPING SYSTEM ADAPTED FOR SCAVENGING TANKER SHIPS AND THE LIKE WHICH COMPRISES A PLURALITY OF CENTRIFUGAL PUMP AND MOTOR UNITS HAVING MEANS FOR MOUNTING THE SAMD IN THE BOTTOMS OF THE TANKS OF A TANKER SHIP IN COMPLETELY SUBMERGED RELATION WITH THE MEDIUM TO BE PUMPED FROM THE SHIP, SAID PUMP AND MOTOR UNITS EACH HAVING A SEALED CASING WITH A PUMP COMPARTMENT AND A MOTOR COMPARTMENT, SAID MOTOR COMPARTMENT BEING SEALED FROM SAID PUMP COMPARTMENT, SAID PUMP COMPARTMENT HAVING AN INLET COMMUNICATING FREELY WITH THE MEDIUM TO BE PUMPED, AND A SUPPORT SYSTEM FOR MOUNTING ABOVE THE TANKS OF THE TANKER SHIPS FOR CIRCULATING OIL THROUGH ALL OF SAID PUMP AND MOTOR UNITS, SAID SYSTEM INCLUDING A SCOURE OF LUBRICATING OIL, A FILTER FOR CLEANING THE LUBRICATING OIL, A PUMP FOR CIRCULATING THE LUBRICATING OIL AND PIPING CONVEYING FILTERED OIL TO EACH PUMP AND MOTOR UNIT AND FOR RETURNING THE OIL FROM EACH PUMP AND MOTOR UNIT BACK TO THE SCOURE, AND EACH PUMP AND MOTOR UNIT HAVING INTERNAL TUBING DISTRIBUTING OIL TO THE WEARABLE PARTS OF THE UNIT WHILE FLOODING THE MOTOR COMPARTMENT WITH OIL, AND PURGING AIR OR GAS FROM THE MOTOR COMPARTMENT.
Claim 2
Dependent Claim
201 words
A SUBMERGED MOTOR DRIVEN CARGO PUMPING SYSTEM ADAPTED FOR SCAVENGING TANKER SHIPS AND THE LIKE WHICH COMPRISES A PLURALITY OF CENTRIFUGAL PUMP AND MOTOR UNITS HAVING MEANS FOR MOUNTING THE SAMD IN THE BOTTOMS OF THE TANKS OF A TANKER SHIP IN COMPLETELY SUBMERGED RELATION WITH THE MEDIUM TO BE PUMPED FROM THE SHIP, SAID PUMP AND MOTOR UNITS EACH HAVING A SEALED CASING WITH A PUMP COMPARTMENT AND A MOTOR COMPARTMENT, SAID MOTOR COMPARTMENT BEING SEALED FROM SAID PUMP COMPARTMENT, SAID PUMP COMPARTMENT HAVING AN INLET COMMUNICATING FREELY WITH THE MEDIUM TO BE PUMPED, AND A SUPPORT SYSTEM FOR MOUNTING ABOVE THE TANKS OF THE TANKER SHIPS FOR CIRCULATING OIL THROUGH ALL OF SAID PUMP AND MOTOR UNITS, SAID SYSTEM INCLUDING A SCOURE OF LUBRICATING OIL, A FILTER FOR CLEANING THE LUBRICATING OIL, A PUMP FOR CIRCULATING THE LUBRICATING OIL AND PIPING CONVEYING FILTERED OIL TO EACH PUMP AND MOTOR UNIT AND FOR RETURNING THE OIL FROM EACH PUMP AND MOTOR UNIT BACK TO THE SCOURE, AND EACH PUMP AND MOTOR UNIT HAVING INTERNAL TUBING DISTRIBUTING OIL TO THE WEARABLE PARTS OF THE UNIT WHILE FLOODING THE MOTOR COMPARTMENT WITH OIL, AND PURGING AIR OR GAS FROM THE MOTOR COMPARTMENT.
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) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |