← Back to Patent Explorer
US3274470A Expired / Lapsed US ⏱️ 0.0 years remaining

Brushless motor means

Assignee: Motors Liquidation Co
•
Filing: 1963-12-05
•
Granted: 1966-09-20
•
Expires: 1983-12-05
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Bernard J Gershen

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 09:34
CPC Classifications
H; H02; H02P; H02P6/00; H02P6/34

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 186 words
ENERGIZING ARRANGEMENT FROM A DIRECT CURRENT SUPPLY LINE SOURCE FOR D.-C. TO D.-C. CONVERTOR AS WELL AS D.-C. TO A.-C. INVERTER MEANS, COMPRISING, ELECTROMAGNETIC CORE MEANS SHARED FOR WINDING PORTIONS INCLUDING A MAIN WINDING PORTION, A PAIR OF FEEDBACK WINDING PORTIONS AND AN ADDITIONAL OUTPUT WINDING PORTION ALL FIXED IN LOCATION, A PAIR OF SEMI-CONDUCTOR MEANS EACH HAVING BASE, COLLECTOR AND EMITTER PORTIONS THEREOF, EACH FEEDBACK WINDING PORTION HAVING CONNECTION BETWEEN BASE AND EMITTER PORTIONS OF RESPECTIVE SEMI-CONDUCTOR MEANS, AN EMITTER PORTION OF ONE SEMI-CONDUCTOR MEANS BEING CONNECTED TO A COLLECTOR OF THE OTHER SEMI-CONDUCTOR MEANS IN A COMMON JUNCTURE ALSO SHARED BY CAPACITANCE MEANS AT LEAST IN SERIES WITH SAID MAIN WINDING PORTION WHICH IS CONNECTED TO A CONNECTION OF ONE SIDE OF SUPPLY LINE AN EMITTER PORTION OF ONE OF SAID SEMI-CONDUCTOR MEANS WHICH A REMAINING SIDE OF SUPPLY LINE SOURCE IS CONNECTED TO COLLECTOR PORTION OF SAID OTHER SEMI-CONDUCTOR MEANS, AND A PAIR OF RECTIFIER MEANS CONNECTED TO OPPOSITE ENDS OF SAID ADDITIONAL WINDING PORTION ASLO HAVING A TAP CONNECTION THERETO FOR DIRECT CURRENT DIRECTLY FROM OPPOSITE ENDS OF SAID ADDITIONAL WINDING PORTION.
Claim 2
Dependent Claim 186 words
ENERGIZING ARRANGEMENT FROM A DIRECT CURRENT SUPPLY LINE SOURCE FOR D.-C. TO D.-C. CONVERTOR AS WELL AS D.-C. TO A.-C. INVERTER MEANS, COMPRISING, ELECTROMAGNETIC CORE MEANS SHARED FOR WINDING PORTIONS INCLUDING A MAIN WINDING PORTION, A PAIR OF FEEDBACK WINDING PORTIONS AND AN ADDITIONAL OUTPUT WINDING PORTION ALL FIXED IN LOCATION, A PAIR OF SEMI-CONDUCTOR MEANS EACH HAVING BASE, COLLECTOR AND EMITTER PORTIONS THEREOF, EACH FEEDBACK WINDING PORTION HAVING CONNECTION BETWEEN BASE AND EMITTER PORTIONS OF RESPECTIVE SEMI-CONDUCTOR MEANS, AN EMITTER PORTION OF ONE SEMI-CONDUCTOR MEANS BEING CONNECTED TO A COLLECTOR OF THE OTHER SEMI-CONDUCTOR MEANS IN A COMMON JUNCTURE ALSO SHARED BY CAPACITANCE MEANS AT LEAST IN SERIES WITH SAID MAIN WINDING PORTION WHICH IS CONNECTED TO A CONNECTION OF ONE SIDE OF SUPPLY LINE AN EMITTER PORTION OF ONE OF SAID SEMI-CONDUCTOR MEANS WHICH A REMAINING SIDE OF SUPPLY LINE SOURCE IS CONNECTED TO COLLECTOR PORTION OF SAID OTHER SEMI-CONDUCTOR MEANS, AND A PAIR OF RECTIFIER MEANS CONNECTED TO OPPOSITE ENDS OF SAID ADDITIONAL WINDING PORTION ASLO HAVING A TAP CONNECTION THERETO FOR DIRECT CURRENT DIRECTLY FROM OPPOSITE ENDS OF SAID ADDITIONAL WINDING PORTION.

References Cited (Backward Citations)

US3124733A Cited
US2814769A Cited
US3221270A Cited
US2965856A Cited
US2995690A Cited
US3098958A Cited
US3210689A Cited
US3215952A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-09-19 1970-03-21 1970-09-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-09-19 1974-03-21 1974-09-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-09-19 1978-03-21 1978-09-20 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag