US3324324A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dynamo-electric machines of the synchronous type
Assignee: CA Parsons and Co Ltd
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Filing: 1966-05-23
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Granted: 1967-06-06
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Expires: 1986-05-23
Abstract
No abstract record available.
Inventors
- 👤 Richardson Philip
- 👤 Young Norman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:57
CPC Classifications
H; H02; H02K; H02K3/00; H02K3/46; H02K3/48; H02K3/487; H02K3/50; H02K3/51
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
202 words
A DYNAMO-ELECTRIC MACHINE OF THE SYNCHRONOUS TYPE COMPRISING A ROTOR, SLOTS IN SAID ROTOR EXTENDING IN A DIRECTION SUBSTANTIALLY PARALLEL TO THE AXIS OF THE ROTOR, ELECTRICAL CONDUCTORS FORMING A ROTOR WINDING LOCATED IN SAID SLOTS, AND EXTENDING AXIALLY BEYOND SAID SLOTS AT EACH END THEREOF, TO FORM ROTOR END WINDINGS, METAL RETAINING MEANS FOR SECURING THE CONDUCTORS IN THE SLOTS, AND SEPARATE METAL RETAINING MEANS FOR SECURING THE END WINDINGS AGAINST THE EFFECTS OF CENTRIGUAL FORCES, SAID METAL RETAINING MEANS FOR SECURING THE END WINDINGS BEING IN THE FORM OF TUBULAR MEMBERS FITTING OVER THE WINDINGS, THERE BEING A MEMBER AT EACH END OF THE ROTOR, SAID METAL RETAINING MEANS FOR THE CONDUCTORS COMPRISING CHANNEL SHAPED MEMBERS ADAPTED TO SLIDE OVER ROTOR TEETH BETWEEN CONDUCTOR SLOTS, EACH SAID CHANNEL MEMBER EXTENDING OVER A PORTION OF EACH OF THE PAIR OF SLOTS ON EITHER SIDE OF THE ROTOR TOOTH SUPPORTING SAID MEMBER, BUT BEING SPACED FROM THE CHANNEL MEMBERS ON ADJACENT TEETH SO AS TO DEFINE A GAS SPACE EXTENDING FOR THE FULL AXIAL LENGTH OF THE SLOT, THE RETAINING MEANS FOR SECURING THE END WINDINGS BEING SEPARATED FROM THE RETAINING MEANS FOR THE SLOT EMBEDDED CONDUCTORS BY ELECTRICALLY INSULATING BARRIER MEANS.
Claim 2
Dependent Claim
202 words
A DYNAMO-ELECTRIC MACHINE OF THE SYNCHRONOUS TYPE COMPRISING A ROTOR, SLOTS IN SAID ROTOR EXTENDING IN A DIRECTION SUBSTANTIALLY PARALLEL TO THE AXIS OF THE ROTOR, ELECTRICAL CONDUCTORS FORMING A ROTOR WINDING LOCATED IN SAID SLOTS, AND EXTENDING AXIALLY BEYOND SAID SLOTS AT EACH END THEREOF, TO FORM ROTOR END WINDINGS, METAL RETAINING MEANS FOR SECURING THE CONDUCTORS IN THE SLOTS, AND SEPARATE METAL RETAINING MEANS FOR SECURING THE END WINDINGS AGAINST THE EFFECTS OF CENTRIGUAL FORCES, SAID METAL RETAINING MEANS FOR SECURING THE END WINDINGS BEING IN THE FORM OF TUBULAR MEMBERS FITTING OVER THE WINDINGS, THERE BEING A MEMBER AT EACH END OF THE ROTOR, SAID METAL RETAINING MEANS FOR THE CONDUCTORS COMPRISING CHANNEL SHAPED MEMBERS ADAPTED TO SLIDE OVER ROTOR TEETH BETWEEN CONDUCTOR SLOTS, EACH SAID CHANNEL MEMBER EXTENDING OVER A PORTION OF EACH OF THE PAIR OF SLOTS ON EITHER SIDE OF THE ROTOR TOOTH SUPPORTING SAID MEMBER, BUT BEING SPACED FROM THE CHANNEL MEMBERS ON ADJACENT TEETH SO AS TO DEFINE A GAS SPACE EXTENDING FOR THE FULL AXIAL LENGTH OF THE SLOT, THE RETAINING MEANS FOR SECURING THE END WINDINGS BEING SEPARATED FROM THE RETAINING MEANS FOR THE SLOT EMBEDDED CONDUCTORS BY ELECTRICALLY INSULATING BARRIER MEANS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-05 | 1970-12-05 | 1971-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-05 | 1974-12-05 | 1975-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-05 | 1978-12-05 | 1979-06-06 | $7700.00 | Window Closed / Lapsed |