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US3087108A Expired / Lapsed US ⏱️ 0.0 years remaining

Flux switching transformer

Assignee: Individual
•
Filing: 1957-01-03
•
Granted: 1963-04-23
•
Expires: 1977-01-03
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Abstract

No abstract record available.

Inventors

  • 👤 Dominic S Toffolo
  • 👤 Lee R Larson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 09:57
CPC Classifications
H; H01; H01F; H01F29/00; H01F29/14; H01F29/146; H01F29/143

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 135 words
AN ELECTRICAL POWER CONTROL DEVICE COMPRISING, FIRST AND SECOND MAGNETIC CORE MEMBERS OF GRAIN ORIENTED CHARACTERISTICS, A PRIMARY WINDING DISPOSED UPON SAID CORE MEMBERS HAVING LINKAGE TO SAID MEMBERS, A SECONDARY WINDING DISPOSED ON THE FIRST CORE MEMBER, FIRST CONTROL MEANS FOR PRODUCING A TRANSVERSE FLUX ACROSS A PORTION OF THE FIRST MAGNETIC CORE MEMBER FOR CONTROLLING THE PERMEABILITY THEREOF, SECOND CONTROL MEANS FOR PRODUCING A TRANSVERSE FLUX ACROSS A PORTION OF THE SECOND MAGNETIC CORE MEMBER FOR CONTROLLING THE PERMEABILITY THEREOF, MEANS FOR VARYING THE FLUX PRODUCED BY SAID FIRST CONTROL MEANS AND SAID SECOND CONTROL MEANS IN AN INVERSE SENSE FOR VARYING THE RELATIVE PERMEABILITIES OF THE FIRST AND SECOND MAGNETIC CORE MEMBERS, AND A SHORTED WINDING LINKING THE SECOND MAGNETIC CORE MEMBER FOR OPPOSING FLUX CHANGES IN THE SECOND MAGNETIC CORE MEMBER.

References Cited (Backward Citations)

US1815516A Cited
US1910381A Cited
US1891044A Cited
US1995530A Cited
DE702814C Cited
US2466028A Cited
US2644109A Cited
US2703391A Cited
US2814786A Cited
US2844804A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1966-04-22 1966-10-22 1967-04-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1970-04-22 1970-10-22 1971-04-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1974-04-22 1974-10-22 1975-04-23 $7700.00 Window Closed / Lapsed

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