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US3261980A Expired / Lapsed US ⏱️ 0.0 years remaining

Electrical recycling circuit for controlling and protecting functional equipment

Assignee: Individual
•
Filing: 1962-12-17
•
Granted: 1966-07-19
•
Expires: 1982-12-17
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Abstract

No abstract record available.

Inventors

  • 👤 Jr William B Mccartney
  • 👤 Edward O Uhrig

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 16:39
CPC Classifications
H; H02; H02H; H02H3/00; H02H3/02; H02H3/06; H02H3/07

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 201 words
IN A CIRCUIT FOR SUPPLYING ELECTRICAL POWER TO A LOAD, THE COMBINATION COMPRISING: A SOURCE OF ALTERNATING CURRENT; A SWITCHING CIRCUIT CONNECTED TO THE OUTPUT OF SAID SOURCE OF ALTERNATING CURRENT; A PLURALITY OF POWER SUPPLIES CONNECTED TO ONE SIDE OF SAID SWITCHING CIRCUIT SO THAT ALTERNATING CURRENT FROM SAID SOURCE OF ALTERNATING CURRENT IS APPLIED TO SAID PLURALITY OF POWER SUPPLIED THROUGH SAID SWITCHING CIRCUIT; COUPLING MEANS WITHIN EACH OF SAID PLURALITY OF POWER SUPPLIES TO COUPLE A SIGNAL INDICATING AN OVERLOAD CURRENT IN ANY OF SAID POWER SUPPLIES; EACH OF SAID COUPLING MEANS BEING CONNECTED INTO THE OUTPUT OF ITS RESPECTIVE POWER SUPPLY AND BEING ADAPTED TO DE-ENERGIZE SAID POWER SUPPLY WHEN AN OVERLOAD CURRENT APPEARS THEREIN; SAID PLURALITY OF POWER SUPPLIES HAVING A PREDETERMINED NUMBER OF POSITIVE POLARITY POWER SUPPLIES AND A PREDETERMINED NUMBER OF NEGATIVE POLARITY POWER SUPPIES; A PLURALITY OF LOADS ELECTRICALLY CONNECTED TO SAID PLURALITY OF POWER SUPPLIES TO RECEIVE DIRECT CURRENT FROM SAID POWER SUPPLIES; AND RECYCLING MEANS ELECTRICALLY CONNECTED TO SAID PLURALITY OF POWER SUPPLIES TO DISCONNECT ALL OF SAID PLURALITY OF POWER SUPPLIES FROM SAID SOURCE OF ALTERNATING CURRENT WHEN A SHORT CIRCUIT APPEARS IN ANY ONE OF SAID PLURALITY OF LOADS.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-07-18 1970-01-17 1970-07-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-07-18 1974-01-17 1974-07-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-07-18 1978-01-17 1978-07-19 $7700.00 Window Closed / Lapsed

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