US3260872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil cooled generator design
Assignee: Bendix Corp
•
Filing: 1964-04-13
•
Granted: 1966-07-12
•
Expires: 1984-04-13
Abstract
No abstract record available.
Inventors
- 👤 Potter Frederick Milton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:02
CPC Classifications
H; H02; H02K; H02K9/00; H02K9/22; H02K9/227; H02K9/19; H02K9/197
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
A DYNAMOELECTRIC MACHINE COMPRISING A STATOR AND A ROTOR, MEANS FOR CIRCULATING A LIQUID COOLANT IN A CLOSED CIRCUIT IN HEAT TRANSFER RELATION WITH SAID STATOR AND ROTOR, SAID MEANS COMPRISING TWO GROUPS OF PARALLEL SPIRAL GROOVES SURROUNDING SAID STATOR, AND INPUT CHANNEL CONNECTING ONE END OF ONE GROUP OF SAID PARALLEL SPIRAL GROOVES, A LONGITUDINALLY EXTENDING CHANNEL IN SAID ROTOR, A FIRST CONNECTING CHANNEL CONNECTING THE OTHER END OF SAID ONE GROUP OF PARALLEL GROOVES TO ONE END OF SAID LONGITUDINALLY EXTENDING CHANNEL, A SPIRAL CHANNEL IN SAID ROTOR, A RESERVOIR CONNECTING THE OTHER END OF SAID LONGITUDINALLY EXTENDING CHANNEL TO ONE OF SAID SPIRAL CHANNEL IN SAID ROTOR, A SECOND CONNECTING CHANNEL CONNECTING THE OTHER END OF SAID ROTOR SPIRAL CHANNEL TO ONE END OF THE OTHER OF SAID GROUPS OF PARALLEL GROOVES, AND AN OUTPUT CHANNEL CONNECTED TO THE OTHER END OF SAID OTHER GROUPS OF PARALLEL GROOVES.
Claim 2
Dependent Claim
151 words
A DYNAMOELECTRIC MACHINE COMPRISING A STATOR AND A ROTOR, MEANS FOR CIRCULATING A LIQUID COOLANT IN A CLOSED CIRCUIT IN HEAT TRANSFER RELATION WITH SAID STATOR AND ROTOR, SAID MEANS COMPRISING TWO GROUPS OF PARALLEL SPIRAL GROOVES SURROUNDING SAID STATOR, AND INPUT CHANNEL CONNECTING ONE END OF ONE GROUP OF SAID PARALLEL SPIRAL GROOVES, A LONGITUDINALLY EXTENDING CHANNEL IN SAID ROTOR, A FIRST CONNECTING CHANNEL CONNECTING THE OTHER END OF SAID ONE GROUP OF PARALLEL GROOVES TO ONE END OF SAID LONGITUDINALLY EXTENDING CHANNEL, A SPIRAL CHANNEL IN SAID ROTOR, A RESERVOIR CONNECTING THE OTHER END OF SAID LONGITUDINALLY EXTENDING CHANNEL TO ONE OF SAID SPIRAL CHANNEL IN SAID ROTOR, A SECOND CONNECTING CHANNEL CONNECTING THE OTHER END OF SAID ROTOR SPIRAL CHANNEL TO ONE END OF THE OTHER OF SAID GROUPS OF PARALLEL GROOVES, AND AN OUTPUT CHANNEL CONNECTED TO THE OTHER END OF SAID OTHER GROUPS OF PARALLEL GROOVES.
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) | 1969-07-11 | 1970-01-10 | 1970-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-11 | 1974-01-10 | 1974-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-11 | 1978-01-10 | 1978-07-12 | $7700.00 | Window Closed / Lapsed |