US3078805A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor pump unit
Assignee: Goulds Pumps Inc
•
Filing: 1959-07-31
•
Granted: 1963-02-26
•
Expires: 1979-07-31
Abstract
No abstract record available.
Inventors
- 👤 Albert R Pezzillo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:22
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/58; F04D29/586; F04D13/00; F04D13/02; F04D13/06; F04D13/0606; F04D13/0633; F04D13/064; H; H02; H02K; H02K5/00; H02K5/04; H02K5/12; H02K5/128
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
A MOTOR PUMP UNIT FOR PUMPING FLUID, COMPRISING A MOTOR PUMP HOUSING HAVING A MOTOR SECTION AND A PUMP SECTION, A BARRIER BETWEEN SAID PUMP SECTION AND SAID MOTOR SECTION, A STATOR MOUNTED WITHIN A STATOR HOUSING IN SAID MOTOR SECTION, A SHAFT EXTENDING THROUGH SAID BARRIER AND ROTATABLY MOUNTED THEREIN, AND HAVING SEALING MEANS TO SEAL SAID SHAFT RELATIVE TO SAID BARRIER AND SAID PUMP SECTION, A ROTOR MOUNTED ON ONE END OF SAID SHAFT FOR ROTATING SAID SHAFT, SAID ROTOR BEING SEALED WITHIN A ROTOR HOUSING INSIDE OF A ROTOR CHAMBER WHICH IN TURN IS LOCATED IN SAID MOTOR SECTION, AN IMPELLER MOUNTED ON THE OTHER END OF SAID SHAFT IN SAID PUMP SECTION FOR PUMPING A FLUID, AND MEANS FOR CIRCULATING A COOLING FLUID UNDER A POSITIVE PRESSURE THROUGH SUBSTANTIALLY ALL OF SAID BARRIER THEREBY TO INHIBIT HEAT TRANSFER BETWEEN SAID MOTOR SECTION AND SAID PUMP SECTION.
Claim 2
Dependent Claim
150 words
A MOTOR PUMP UNIT FOR PUMPING FLUID, COMPRISING A MOTOR PUMP HOUSING HAVING A MOTOR SECTION AND A PUMP SECTION, A BARRIER BETWEEN SAID PUMP SECTION AND SAID MOTOR SECTION, A STATOR MOUNTED WITHIN A STATOR HOUSING IN SAID MOTOR SECTION, A SHAFT EXTENDING THROUGH SAID BARRIER AND ROTATABLY MOUNTED THEREIN, AND HAVING SEALING MEANS TO SEAL SAID SHAFT RELATIVE TO SAID BARRIER AND SAID PUMP SECTION, A ROTOR MOUNTED ON ONE END OF SAID SHAFT FOR ROTATING SAID SHAFT, SAID ROTOR BEING SEALED WITHIN A ROTOR HOUSING INSIDE OF A ROTOR CHAMBER WHICH IN TURN IS LOCATED IN SAID MOTOR SECTION, AN IMPELLER MOUNTED ON THE OTHER END OF SAID SHAFT IN SAID PUMP SECTION FOR PUMPING A FLUID, AND MEANS FOR CIRCULATING A COOLING FLUID UNDER A POSITIVE PRESSURE THROUGH SUBSTANTIALLY ALL OF SAID BARRIER THEREBY TO INHIBIT HEAT TRANSFER BETWEEN SAID MOTOR SECTION AND SAID PUMP SECTION.
References Cited (Backward Citations)
US633732A
Cited
US2184197A
Cited
US2612843A
Cited
US2768584A
Cited
FR1111911A
Cited
US2885963A
Cited
US2789238A
Cited
US2913988A
Cited
US2964659A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-25 | 1966-08-27 | 1967-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-25 | 1970-08-27 | 1971-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-25 | 1974-08-27 | 1975-02-26 | $7700.00 | Window Closed / Lapsed |