US3333172A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Direct current oscillator fed motor
Assignee: Brailsford and Co Inc
•
Filing: 1966-03-30
•
Granted: 1967-07-25
•
Expires: 1986-03-30
Abstract
No abstract record available.
Inventors
- 👤 Harrison D Brailsford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:44
CPC Classifications
H; H02; H02K; H02K33/00; H02K33/12; H02K33/14; G; G04; G04C; G04C3/00; G04C3/08; G04C3/10; G04C3/101; G04C3/107; H02K29/00; H02K29/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
A MOTOR COMPRISING A SOFT IRON STATOR STRUCTURE; A DRIVING WINDING WOUND THEREON TO INDUCE MAGNETIC FLUX THEREIN WHEN SAID DRIVING WINDING IS ENERGIZED, SAID DRIVING WINDING HAVING A FIRST END TERMINAL AND A SECOND END TERMINAL; A FIRST TRANSISTOR HAVING AN EMITTER-COLLECTOR CIRCUIT CONNECTED TO SAID FIRST END TERMINAL AND IN SERIES THEREWITH; A SECOND TRANSISTOR HAVING AN EMITTER-COLLECTOR CIRCUIT CONNECTED TO SAID SECOND END TERMINAL AND IN SERIES THEREWITH; A CONNECTION FROM THE BASE OF SAID FIRST TRANSISTOR TO SAID SECOND END TERMINAL; A CONNECTION FROM THE BASE OF SAID SECOND TRANSISTOR TO SAID FIRST END TERMINAL TO PROVIDE POSITIVE FEED-BACK WHEREBY ONLY ONE OF SAID TRANSISTORS WILL BE CONDUCTIVE AT A TIME; AN ARMATURE; AND A RESILIENT SPRING HAVING ONE END CONNECTED TO A FIXED POINT WITH RESPECT TO SAID STATOR STRUCTURE AND THE OTHER
Claim 2
Dependent Claim
138 words
A MOTOR COMPRISING A SOFT IRON STATOR STRUCTURE; A DRIVING WINDING WOUND THEREON TO INDUCE MAGNETIC FLUX THEREIN WHEN SAID DRIVING WINDING IS ENERGIZED, SAID DRIVING WINDING HAVING A FIRST END TERMINAL AND A SECOND END TERMINAL; A FIRST TRANSISTOR HAVING AN EMITTER-COLLECTOR CIRCUIT CONNECTED TO SAID FIRST END TERMINAL AND IN SERIES THEREWITH; A SECOND TRANSISTOR HAVING AN EMITTER-COLLECTOR CIRCUIT CONNECTED TO SAID SECOND END TERMINAL AND IN SERIES THEREWITH; A CONNECTION FROM THE BASE OF SAID FIRST TRANSISTOR TO SAID SECOND END TERMINAL; A CONNECTION FROM THE BASE OF SAID SECOND TRANSISTOR TO SAID FIRST END TERMINAL TO PROVIDE POSITIVE FEED-BACK WHEREBY ONLY ONE OF SAID TRANSISTORS WILL BE CONDUCTIVE AT A TIME; AN ARMATURE; AND A RESILIENT SPRING HAVING ONE END CONNECTED TO A FIXED POINT WITH RESPECT TO SAID STATOR STRUCTURE AND THE OTHER
References Cited (Backward Citations)
US3124733A
Cited
US3100278A
Cited
US3160804A
Cited
US3059131A
Cited
US3164734A
Cited
US3210631A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |