US3073980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Commutator construction
Assignee: Westinghouse Electric Corp
•
Filing: 1960-11-14
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Granted: 1963-01-15
•
Expires: 1980-11-14
Abstract
No abstract record available.
Inventors
- 👤 Dillon B Hoover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:03
CPC Classifications
H; H02; H02K; H02K13/00; H02K13/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A COMMUTATOR-TYPE DYNAMOELECTRIC MACHINE HAVING A ROTOR-CORE, AN ARMATURE-WINDING CARRIED BY THE ROTOR CORE, A COMMUTATOR SPACED AXIALLY FROM THE FRONT END OF THE ROTOR CORE, COMMUTATOR RISER BARS EXTENDING RADIALLY OUTWARD FROM THE COMMUTATOR, ANNULAR MEANS FOR SUPPORTING SAID COMMUTATOR FOR ROTATION WITH SAID ROTOR CORE, AND INSULATING BANDING WRAPPED AROUND SAID COMMUTATOR AND OCCUPYING THE SPACE INTERMEDIATE SAID RISERS AND SAID ANNULAR MEANS TO FORM AN UNINTERRUPTED, SMOOTH CYLINDRICAL SURFACE BETWEEN THE RISERS AND SAID ANNULAR MEANS.
Claim 2
Dependent Claim
79 words
A COMMUTATOR-TYPE DYNAMOELECTRIC MACHINE HAVING A ROTOR-CORE, AN ARMATURE-WINDING CARRIED BY THE ROTOR CORE, A COMMUTATOR SPACED AXIALLY FROM THE FRONT END OF THE ROTOR CORE, COMMUTATOR RISER BARS EXTENDING RADIALLY OUTWARD FROM THE COMMUTATOR, ANNULAR MEANS FOR SUPPORTING SAID COMMUTATOR FOR ROTATION WITH SAID ROTOR CORE, AND INSULATING BANDING WRAPPED AROUND SAID COMMUTATOR AND OCCUPYING THE SPACE INTERMEDIATE SAID RISERS AND SAID ANNULAR MEANS TO FORM AN UNINTERRUPTED, SMOOTH CYLINDRICAL SURFACE BETWEEN THE RISERS AND SAID ANNULAR MEANS.
References Cited (Backward Citations)
US2307516A
Cited
US2896100A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |