US3209186A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cushioned commutator leads
Assignee: Robbins and Myers Inc
•
Filing: 1963-04-23
•
Granted: 1965-09-28
•
Expires: 1983-04-23
Abstract
No abstract record available.
Inventors
- 👤 Jr James J Bolzan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:39
CPC Classifications
H; H02; H02K; H02K13/00; H02K13/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
IN AN ELECTRIC MOTOR ARMATURE HAVING A SHAFT, A COMMUTATOR STRUCTURE MOUNTED ON SAID SHAFT, AND A PLURALITY OF COIL WINDINGS ASSOCIATED THEREWITH, EACH WINDING HAVING A LEAD CONNECTED TO SAID COMMUTATOR STRUCTURE, THE IMPROVEMENT WHICH COMPRISES; A FIRST RESILIENT BAND SURROUNDING SAID SHAFT BETWEEN SAID COMMUTATOR STRUCTURE AND SAID WINDINGS, SAID LEADS CROSSING SAID BAND AT CIRCUMFERENTIALLY SPACED INTERVALS, AND A SECOND RESILIENT BAND OVERLYING SAID FIRST BAND AND COVERING SAID LEDS, SAID FIRST AND SECOND BANDS BEING TIGHTLY ADHERED TO EACH OTHER.
Claim 2
Dependent Claim
84 words
IN AN ELECTRIC MOTOR ARMATURE HAVING A SHAFT, A COMMUTATOR STRUCTURE MOUNTED ON SAID SHAFT, AND A PLURALITY OF COIL WINDINGS ASSOCIATED THEREWITH, EACH WINDING HAVING A LEAD CONNECTED TO SAID COMMUTATOR STRUCTURE, THE IMPROVEMENT WHICH COMPRISES; A FIRST RESILIENT BAND SURROUNDING SAID SHAFT BETWEEN SAID COMMUTATOR STRUCTURE AND SAID WINDINGS, SAID LEADS CROSSING SAID BAND AT CIRCUMFERENTIALLY SPACED INTERVALS, AND A SECOND RESILIENT BAND OVERLYING SAID FIRST BAND AND COVERING SAID LEDS, SAID FIRST AND SECOND BANDS BEING TIGHTLY ADHERED TO EACH OTHER.
References Cited (Backward Citations)
US2535825A
Cited
US2897385A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |