US3201626A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Differential bias auxiliary comutating field
Assignee: Westinghouse Electric Corp
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Filing: 1962-01-29
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Granted: 1965-08-17
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Expires: 1982-01-29
Abstract
No abstract record available.
Inventors
- 👤 Daniel M Calabrese
- 👤 Maurice J Pasculle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:28
CPC Classifications
H; H02; H02K; H02K23/00; H02K23/02; H02K23/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A VARIABLE SPEED DIRECT CURRENT MOTOR INCLUDING AN ARMATURE, A SHUNT TYPE FIELD WINDING, A SHUNT FIELD EXCITATION CIRCUIT INCLUDING MEANS FOR VARYING THE EXCITATION OF SAID SHUNT TYPE FIELD WINDING OVER A CONSIDERABLE RANGE, A SERIES COMPENSATING WINDING, A SERIES COMMUTATING WINDING, A FIRST AUXILIARY COMMUTATING WINDING, MEANS FOR ENERGIZING THE AUXILIARY COMMUTATING WINDING FROM THE EXCITATION CIRCUIT OF THE SHUNT TYPE FIELD WINDING, AND A SECOND AUXILIARY COMMUTATING WINDING, SAID SECOND AUXILIARY COMMUTATING WINDING BEING WOUND DIFFERENTIAL TO THE FIRST AUXILIARY COMMUTATING WINDING.
Claim 2
Dependent Claim
85 words
A VARIABLE SPEED DIRECT CURRENT MOTOR INCLUDING AN ARMATURE, A SHUNT TYPE FIELD WINDING, A SHUNT FIELD EXCITATION CIRCUIT INCLUDING MEANS FOR VARYING THE EXCITATION OF SAID SHUNT TYPE FIELD WINDING OVER A CONSIDERABLE RANGE, A SERIES COMPENSATING WINDING, A SERIES COMMUTATING WINDING, A FIRST AUXILIARY COMMUTATING WINDING, MEANS FOR ENERGIZING THE AUXILIARY COMMUTATING WINDING FROM THE EXCITATION CIRCUIT OF THE SHUNT TYPE FIELD WINDING, AND A SECOND AUXILIARY COMMUTATING WINDING, SAID SECOND AUXILIARY COMMUTATING WINDING BEING WOUND DIFFERENTIAL TO THE FIRST AUXILIARY COMMUTATING 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) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |