Patent US4326837A successfully refreshed from Google Patents.
Patent US3321650A successfully refreshed from Google Patents.
US3321650A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control mechanism for rotary power driven devices
Assignee: Black and Decker Corp
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Filing: 1964-10-19
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Granted: 1967-05-23
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Expires: 1984-10-19
Abstract
No abstract record available.
Inventors
- 👤 Jr Michael J Pedone
- 👤 Harry L Beam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:42
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/14; H02K7/145
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
IN A POWER-DRIVEN TOOL, THE COMBINATION OF A HOUSING; AN ELECTRICAL MOTOR COMPRISING A FIELD STRUCTURE AND AN ARMATURE; BEARING MEANS MOUNTING SAID MOTOR IN SAID HOUSING WITH SAID FIELD STRUCTURE AND SAID ARMATURE SUPPORTED FOR ROTATION RELATIVE TO EACH OTHER AND RELATIVE TO SAID HOUSING; SLIP RING MEANS CARRIED BY SAID FIELD STRUCTURE FOR ROTATION THEREWITH; AT LEAST ONE CONTACT MEMBER MOUNTED ON SAID HOUSING FOR SELECTIVE MOVEMENT INTO AND OUT OF ENGAGEMENT WITH SAID SLIP RING MEANS; A MANUAL CONTROL MEMBER MOVABLY MOUNTED ON SAID HOUSING; AND MEANS CONNECTING SAID CONTROL MEMBER TO SAID CONTACT MEMBER TO SELECTIVELY MOVE SAME INTO AND OUT OF ENGAGEMENT WITH SAID SLIP RING MEMBER, SAID MOTOR BEING CONNECTED TO BE ENERGIZED VIA SAID SLIP RING MEANS AND CONTACT MEMBER.
Claim 2
Dependent Claim
127 words
IN A POWER-DRIVEN TOOL, THE COMBINATION OF A HOUSING; AN ELECTRICAL MOTOR COMPRISING A FIELD STRUCTURE AND AN ARMATURE; BEARING MEANS MOUNTING SAID MOTOR IN SAID HOUSING WITH SAID FIELD STRUCTURE AND SAID ARMATURE SUPPORTED FOR ROTATION RELATIVE TO EACH OTHER AND RELATIVE TO SAID HOUSING; SLIP RING MEANS CARRIED BY SAID FIELD STRUCTURE FOR ROTATION THEREWITH; AT LEAST ONE CONTACT MEMBER MOUNTED ON SAID HOUSING FOR SELECTIVE MOVEMENT INTO AND OUT OF ENGAGEMENT WITH SAID SLIP RING MEANS; A MANUAL CONTROL MEMBER MOVABLY MOUNTED ON SAID HOUSING; AND MEANS CONNECTING SAID CONTROL MEMBER TO SAID CONTACT MEMBER TO SELECTIVELY MOVE SAME INTO AND OUT OF ENGAGEMENT WITH SAID SLIP RING MEMBER, SAID MOTOR BEING CONNECTED TO BE ENERGIZED VIA SAID SLIP RING MEANS AND CONTACT MEMBER.
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) | 1970-05-22 | 1970-11-21 | 1971-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-22 | 1974-11-21 | 1975-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-22 | 1978-11-21 | 1979-05-23 | $7700.00 | Window Closed / Lapsed |