US3255298A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Terminal member for liquid cooled rotor winding
Assignee: BBC Brown Boveri AG Germany
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Filing: 1963-11-08
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Granted: 1966-06-07
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Expires: 1983-11-08
Abstract
No abstract record available.
Inventors
- 👤 Meyer Eugen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:14
CPC Classifications
H; H02; H02K; H02K9/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A COMPOSITE TUBULAR TERMINAL PIECE FOR LIQUID COOLED ROTOR WINDINGS OF ELECTRICAL MACHINES, WHICH COMPRISES A FLEXIBLE PART CONSTITUTED BY A HELICAL SPRING MADE FROM METALLIC TUBING SUCH AS TO ESTABLISH A FLUID PASSAGEWAY THROUGH THE METAL OF THE SPRING ITSELF FROM ONE THEREOF TO THE OTHER, A TUBULAR FITTING AT EACH END OF SAID HELICAL SPRING, EACH SAID FITTING BEING CONNECTED TO THE CORRESPONDING END OF SAID HELICAL SPRING SO AS TO ESTABLISH A FLUID COMMUNICATION BETWEEN THE INTERIOR OF SAID FITTING AND SAID FLUID PASSAGEWAY THROUGH SAID SPRING, A TUBULAR METALLICALLY REINFORCED ELECTRICALLY INSULATING MEMBER HAVING ONE END THEREOF CONNECTED TO ONE OF SAID TUBULAR END FITTINGS AND IN FLUID COMMUNICATION THEREWITH, AND A FURTHER TUBULAR FITTING CONNECTED TO THE OPPOSITE END OF A SAID
Claim 2
Dependent Claim
127 words
A COMPOSITE TUBULAR TERMINAL PIECE FOR LIQUID COOLED ROTOR WINDINGS OF ELECTRICAL MACHINES, WHICH COMPRISES A FLEXIBLE PART CONSTITUTED BY A HELICAL SPRING MADE FROM METALLIC TUBING SUCH AS TO ESTABLISH A FLUID PASSAGEWAY THROUGH THE METAL OF THE SPRING ITSELF FROM ONE THEREOF TO THE OTHER, A TUBULAR FITTING AT EACH END OF SAID HELICAL SPRING, EACH SAID FITTING BEING CONNECTED TO THE CORRESPONDING END OF SAID HELICAL SPRING SO AS TO ESTABLISH A FLUID COMMUNICATION BETWEEN THE INTERIOR OF SAID FITTING AND SAID FLUID PASSAGEWAY THROUGH SAID SPRING, A TUBULAR METALLICALLY REINFORCED ELECTRICALLY INSULATING MEMBER HAVING ONE END THEREOF CONNECTED TO ONE OF SAID TUBULAR END FITTINGS AND IN FLUID COMMUNICATION THEREWITH, AND A FURTHER TUBULAR FITTING CONNECTED TO THE OPPOSITE END OF A SAID
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) | 1969-06-06 | 1969-12-06 | 1970-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-06 | 1973-12-06 | 1974-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-06 | 1977-12-06 | 1978-06-07 | $7700.00 | Window Closed / Lapsed |