Patent US3305740A successfully refreshed from Google Patents.
US3305740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotor assembly
Assignee: Motorola Solutions Inc
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Filing: 1963-09-06
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Granted: 1967-02-21
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Expires: 1983-09-06
Abstract
No abstract record available.
Inventors
- 👤 Charles L Shano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:42
CPC Classifications
H; H02; H02K; H02K3/00; H02K3/46; H02K3/52; H02K3/527; H02K3/528
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A ROTOR ASSEMBLY FOR AN INDUCTIVE ELECTRICAL MACHINE, INCLUDING IN COMBINATION, A PAIR OF SEPARABLE HUB PORTIONS EACH HAVING A PLURALITY OF INTEGRAL POLE PIECES EXTENDING THEREFROM AND DEFINING A CAVITY THEREWITH, WITH THE RESPECTIVE POLE PIECES BEING INTERMESHED, A SLEEVE MEMBER FORMED WITH AN INWARDLY DISPOSED LAP JOINT AND MOUNTED ON SAID HUB PORTIONS, AN INDUCTANCE COIL WOUND ON SAID SLEEVE MEMBER TO BE CARRIED THEREBY IN SAID CAVITIES, AND AN AXIAL GROOVE FORMED IN EACH OF SAID HUB PORTIONS, SAID GROOVES BEING MUTUALLY ALIGNED AND RECEIVING SAID LAP JOINT OF SAID SLEEVE MEMBER THEREIN TO SECURE SAID SLEEVE MEMBER AGAINST ROTATION RELATIVE TO SAID HUB PORTIONS, SAID LAP JOINT OF SAID SLEEVE MEMBER COOPERATING WITH SAID GROOVES IN SAID HUB PORTIONS TO PREVENT RELATIVE MOVEMENT BETWEEN SAID HUB PORTIONS.
Claim 2
Dependent Claim
131 words
A ROTOR ASSEMBLY FOR AN INDUCTIVE ELECTRICAL MACHINE, INCLUDING IN COMBINATION, A PAIR OF SEPARABLE HUB PORTIONS EACH HAVING A PLURALITY OF INTEGRAL POLE PIECES EXTENDING THEREFROM AND DEFINING A CAVITY THEREWITH, WITH THE RESPECTIVE POLE PIECES BEING INTERMESHED, A SLEEVE MEMBER FORMED WITH AN INWARDLY DISPOSED LAP JOINT AND MOUNTED ON SAID HUB PORTIONS, AN INDUCTANCE COIL WOUND ON SAID SLEEVE MEMBER TO BE CARRIED THEREBY IN SAID CAVITIES, AND AN AXIAL GROOVE FORMED IN EACH OF SAID HUB PORTIONS, SAID GROOVES BEING MUTUALLY ALIGNED AND RECEIVING SAID LAP JOINT OF SAID SLEEVE MEMBER THEREIN TO SECURE SAID SLEEVE MEMBER AGAINST ROTATION RELATIVE TO SAID HUB PORTIONS, SAID LAP JOINT OF SAID SLEEVE MEMBER COOPERATING WITH SAID GROOVES IN SAID HUB PORTIONS TO PREVENT RELATIVE MOVEMENT BETWEEN SAID HUB PORTIONS.
References Cited (Backward Citations)
US646147A
Cited
US3130355A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |