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US3559131A Expired / Lapsed US ⏱️ 0.0 years remaining

Magnetic ignition system

Assignee: Braun GmbH
•
Filing: 1968-11-13
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Granted: 1971-01-26
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Expires: 1988-11-13
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Abstract

Abstract A MAGNETIC IGNITION SYSTEM FOR LIGHTERS OR THE LIKE WHEREIN A HORSESHOE MAGNET NORMALLY ATTRACTS AN ARMATURE AND THE LATTER IS PIVOTABLE WITH REFERENCE TO THE HORSESHOE MAGNET ABOUT AN AXIS WHICH IS EXTERNALLY ADJACENT TO THE HORSESHOE MAGNET. THE ACTUATING MEANS FOR PIVOTING THE ARMATURE AWAY FROM ABUTMENT WITH THE POLE FACES OF THE HORSESHOE MAGNET COMPRISES A YIELDABLE FORCE TRANSMITTING DEVICE WHICH STORES ENERGY IN RESPONSE TO DIRECT OR INDIRECT APPLICATION OF FORCE AND ULTIMATELY EFFECTS ABRUPT PIVOTAL MOVEMENT OF THE ARMATURE TO THUS CAUSE A SUDDEN COLLAPSE OF MAGNETIC FLUX. AN INDUCTION COIL SURROUNDS A PORTION OF THE HORSESHOE MAGNET AND IS IN CIRCUIT WITH ELECTRODES WHICH DEFINE A SPARK GAP ADJACENT TO THE BURNER OF THE LIGHTER.

Inventors

  • 👤 Hans Schindler

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 08:33
CPC Classifications
F; F23; F23Q; F23Q3/00; H; H02; H02K; H02K35/00; H02K35/06; H02K39/00

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) 1974-01-25 1974-07-27 1975-01-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-01-25 1978-07-27 1979-01-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-01-25 1982-07-27 1983-01-26 $7700.00 Window Closed / Lapsed

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