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US3588559A Expired / Lapsed US ⏱️ 0.0 years remaining

Inductor generator structure

Assignee: Boeing North American Inc
•
Filing: 1969-07-25
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Granted: 1971-06-28
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Expires: 1989-07-25
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Abstract

Abstract AN ELECTRIC GENERATOR HAVING A PLURALITY OF AXIAL AIR GAPS WHICH ARE FORMED BY RESPECTIVE HORESHOE MAGNETS, PREFERABLY ELECTROMAGNETS, DISPOSED EVENLY AROUND A CIRCLE SO THAT A TOOTHED IRON ROTOR WILL HAVE ITS TEETH PASS THROUGH THE AIR GAPS AS THE ROTOR ROTATES. THE NUMBER OF MAGNETS IS PREFERABLY TWICE THE NUMBER OF TEETH ON THE ROTOR. THROUGH ALTERNATE MAGNETS IS THREADED A TOROIDAL COIL AND THROUGH THE OTHER MAGNETS IS THREADED ANOTHER TOROIDAL COIL. AS A TOOTH ENTERS AN AIR GAP OF A HORESHOE MAGNET, THE FLUX SURROUNDING THE PARTICULAR COIL PASSING THROUGH THE MAGNET WILL INCREASE AND THEN THE FLUX DECREASES AS THE TOOTH MOVES OUT, PRODUCING A VOLTAGE PULSE IN THE PARTICULAR COIL. SINCE AS A PARTICULAR TOOTH MOVES THROUGH THE AIR GAPS THE PULSE IS PRODUCED FIRST IN ONE COIL AND THEN THE OTHER, THE TWO COILS ARE COUPLED TOGETHER TO PRODUCE AN ALTERNATING VOLTAGE.

Inventors

  • 👤 Peter Fono

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 00:29
CPC Classifications
H; H02; H02K; H02K19/00; H02K19/16; H02K19/22; H02K19/24; H02K19/02; H02K19/10; H02K19/103

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-06-27 1974-12-27 1975-06-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-06-27 1978-12-27 1979-06-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-06-27 1982-12-27 1983-06-28 $7700.00 Window Closed / Lapsed

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