US3320447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric synchronous machine, with rotor conductors directly cooled by a liquid
Assignee: Individual
•
Filing: 1964-09-15
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Granted: 1967-05-16
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Expires: 1984-09-15
Abstract
No abstract record available.
Inventors
- 👤 Banchieri Giuseppe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:13
CPC Classifications
H; H02; H02K; H02K3/00; H02K3/04; H02K3/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
A LIQUID COOLED ARMATURE FOR AN ELECTRIC GENERATING MACHINE COMPRISING A ROTOR; A PLURALITY OF COILS INCLUDING HOLLOW CONDUCTORS EACH HAVING A SECTION EXTENDING TENDING AXIALLY BEYOND AND HAVING A SECTION EXTENDING CIRCUMFERENTIALLY OF SAID ROTOR, SAID SECTIONS OF SAID CONDUCTORS BEING STACKED IN RADIAL DIRECTION AND LOCATED SUBTANTIALLY IN A PLANE WHICH IS NORMAL TO THE ROTOR AXIS AND EACH SECTION HAVING A CONNECTING PORTION, THE LENGTH IN CIRCUMFERENTIAL DIRECTION OF SUCCESSIVE CONNECTING PORTIONS INCREASING IN A DIRECTION AWAY FROM THE ROTOR AXIS AND SAID CONNECTING PORTIONS INCLUDING AN INNERMOST PORTION NEAREST TO THE ROTOR AXIS AND ADDITIONAL PORTIONS LOCATED FURTHER AWAY FROM SAID AXIS; LIQUID CONVEYING MEANS LOCATED IN THE REGION OF SAID ROTOR AXIS; AND CONDUITS CONNECTING SAID LIQUID CONVEYING MEANS WITH SAID CONNECTING PORTIONS, EACH CONDUIT WHICH IS CONNECTED TO ONE OF SAID ADDITIONAL PORTIONS BYPASSING EACH CONNECTING PORTION WHICH IS NEARER TO THE ROTOR AXIS.
Claim 2
Dependent Claim
150 words
A LIQUID COOLED ARMATURE FOR AN ELECTRIC GENERATING MACHINE COMPRISING A ROTOR; A PLURALITY OF COILS INCLUDING HOLLOW CONDUCTORS EACH HAVING A SECTION EXTENDING TENDING AXIALLY BEYOND AND HAVING A SECTION EXTENDING CIRCUMFERENTIALLY OF SAID ROTOR, SAID SECTIONS OF SAID CONDUCTORS BEING STACKED IN RADIAL DIRECTION AND LOCATED SUBTANTIALLY IN A PLANE WHICH IS NORMAL TO THE ROTOR AXIS AND EACH SECTION HAVING A CONNECTING PORTION, THE LENGTH IN CIRCUMFERENTIAL DIRECTION OF SUCCESSIVE CONNECTING PORTIONS INCREASING IN A DIRECTION AWAY FROM THE ROTOR AXIS AND SAID CONNECTING PORTIONS INCLUDING AN INNERMOST PORTION NEAREST TO THE ROTOR AXIS AND ADDITIONAL PORTIONS LOCATED FURTHER AWAY FROM SAID AXIS; LIQUID CONVEYING MEANS LOCATED IN THE REGION OF SAID ROTOR AXIS; AND CONDUITS CONNECTING SAID LIQUID CONVEYING MEANS WITH SAID CONNECTING PORTIONS, EACH CONDUIT WHICH IS CONNECTED TO ONE OF SAID ADDITIONAL PORTIONS BYPASSING EACH CONNECTING PORTION WHICH IS NEARER TO THE ROTOR AXIS.
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) | 1970-05-15 | 1970-11-14 | 1971-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-15 | 1974-11-14 | 1975-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-15 | 1978-11-14 | 1979-05-16 | $7700.00 | Window Closed / Lapsed |