US3227941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brushless motor generator
Assignee: Teledyne Inc
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Filing: 1961-12-04
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Granted: 1966-01-04
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Expires: 1981-12-04
Abstract
No abstract record available.
Inventors
- 👤 Frank N Collamore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:41
CPC Classifications
H; H02; H02K; H02K47/00; H02K47/18; H02K47/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
AN ALTERNATING CURRENT DYNAMOELECTRIC MACHINE COMPRISING A ROTATABLE SHAFT, A FIRSTT DIRECT CURRENT WINDING ON SAID SHAFT A FIRST STATIONARY ALTERNATING CURRENT ARMATURE WINDING ASSOCIATED WITH SAID FIRST DIRECT CURRENT WINDING; A SECOND DIRECT CURRENT WINDING ON SAID SHAFT; A SECOND STATIONARY ALTERNATING CURRENT ARMATURE WINDING ASSOCIATED WITH SAID SECOND DIRECT CURRENT WINDING; AN EXCITER FOR ENERGIZING SAID FIRST AND SECOND DIRECT CURRENT WINDINGS, SAID EXCITER INCLUDING A ROTATABLE ALTERNATING CURRENT ARMATURE WINDING ON SAID SHAFT, AND A STATIONARY DIRECT CURRENT FIELD WINDING; MEANS ON SAID SHAFT FOR RECTIFYING THE OUTPUT OF SAID EXCITER ALTERNATING CURRENT ARMATURE WINDING; CIRCUIT MEANS CONNECTING THE OUTPUT OF SAID RECTIFYING MEANS TO SAID FIRST AND SECOND DIRECT CURRENT FIELD WINDINGS IN PARALLEL, AND A VOLTAGE LIMITING MEANS CONNECTED IN PARALLEL WITH SAID SECOND DIRECT CURRENT WINDING.
Claim 2
Dependent Claim
132 words
AN ALTERNATING CURRENT DYNAMOELECTRIC MACHINE COMPRISING A ROTATABLE SHAFT, A FIRSTT DIRECT CURRENT WINDING ON SAID SHAFT A FIRST STATIONARY ALTERNATING CURRENT ARMATURE WINDING ASSOCIATED WITH SAID FIRST DIRECT CURRENT WINDING; A SECOND DIRECT CURRENT WINDING ON SAID SHAFT; A SECOND STATIONARY ALTERNATING CURRENT ARMATURE WINDING ASSOCIATED WITH SAID SECOND DIRECT CURRENT WINDING; AN EXCITER FOR ENERGIZING SAID FIRST AND SECOND DIRECT CURRENT WINDINGS, SAID EXCITER INCLUDING A ROTATABLE ALTERNATING CURRENT ARMATURE WINDING ON SAID SHAFT, AND A STATIONARY DIRECT CURRENT FIELD WINDING; MEANS ON SAID SHAFT FOR RECTIFYING THE OUTPUT OF SAID EXCITER ALTERNATING CURRENT ARMATURE WINDING; CIRCUIT MEANS CONNECTING THE OUTPUT OF SAID RECTIFYING MEANS TO SAID FIRST AND SECOND DIRECT CURRENT FIELD WINDINGS IN PARALLEL, AND A VOLTAGE LIMITING MEANS CONNECTED IN PARALLEL WITH SAID SECOND DIRECT CURRENT WINDING.
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) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |