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US3291109A Expired / Lapsed US ⏱️ 0.0 years remaining

Electronic system

Assignee: Motorola Solutions Inc
•
Filing: 1964-08-10
•
Granted: 1966-12-13
•
Expires: 1984-08-10
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Abstract

No abstract record available.

Inventors

  • 👤 Nicholas T Neapolitakis

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 12:25
CPC Classifications
F; F02; F02P; F02P7/00; F02P7/02; F02P7/021; F02P7/026; F02P7/028; F02P3/00; F02P3/02; F02P3/04; F02P3/0407; F02P3/0435; F02P7/06; F02P7/061

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 229 words
AN IGNITION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE INCLUDING IN COMBINTION, AN IGNITION COIL FOR PROVIDING HIGH VOLTAGE FIRING PULSES FOR THE INTERNAL COMBUSTION ENGINE, SEMICODUCTOR SWITCHING MEANS HAVING A PORTION PROVDING A CONDUCTIVE PATH AND A CONTROL PORTION FOR SELECTIVELY RENDERING SAID PATH CONDUCTIVE, MEANS CONNECTING SAID CONDUCTIVE PATH PORTION OF SAID SEMICONDUCTOR SWITCHING MEANS IN SERIES WITH AT LEAST A PART OF SAID IGNITION COIL ACROSS POTENTIAL SUPPLY MEANS, AND CONTROL MEANS CONNECTED TO SAID CONTROL PORTION OF SAID SEMICONDUCTOR SWITCHING MEANS FOR CONTOLLING THE CONDUCTION THEREOF, SAID CONTROL MEANS INCLUDING MAGNETIC REED SWITCH MEANS AND A MAGNETIC STRUCTURE FOR OPERATING THE SAME, SAID MAGNETIC REED SWITCH MEANS INCLUDING FIRST AND SECOND MAGNETIC REED ELEMENTS HAVING PORTIONS WITH CONTACTS ADAPTED TO ENGAGE EACH OTHER TO COMPLETE A CIRCUIT THERETHROUGH AND A SEALED ENCLOSURE ABOUT SAID PORTIONS, SAID REED ELEMENTS HAVING PORTION EXTENDING OUTSIDE SAID ENCLOSURE, SAID MAGNETIC STRCTURE INCLUDING POLE PIECES CONNECTED TO SAID PORTIONS OF SAID MAGNETIC REED ELEMENTS EXTENDING OUTSIDE SAID ENCLOSURE, AND A ROTOR HAVING A PERMANENT MAGNET AND DISCRETE MAGNETIC POLES WITH ALTERNATE POLES BEING OF OPPOSITE POLARTIY, SAID ROTOR BEING MOVABLE TO ALIGN ADJACENT ONES OF SAID POLES THEREOF WITH SAID POLE PIECES AND THEN DISPLACE SAID POLES FROM SAID POLE PIECES, WHEREBY THE FLUX THROUGH SAID MAGNETIC REED SWITCH MEANS CHANGES SUDDENLY AND REVERSES IN POLARITY TO PROVIDE RAPID SWITCHING ACTION.
Claim 2
Dependent Claim 229 words
AN IGNITION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE INCLUDING IN COMBINTION, AN IGNITION COIL FOR PROVIDING HIGH VOLTAGE FIRING PULSES FOR THE INTERNAL COMBUSTION ENGINE, SEMICODUCTOR SWITCHING MEANS HAVING A PORTION PROVDING A CONDUCTIVE PATH AND A CONTROL PORTION FOR SELECTIVELY RENDERING SAID PATH CONDUCTIVE, MEANS CONNECTING SAID CONDUCTIVE PATH PORTION OF SAID SEMICONDUCTOR SWITCHING MEANS IN SERIES WITH AT LEAST A PART OF SAID IGNITION COIL ACROSS POTENTIAL SUPPLY MEANS, AND CONTROL MEANS CONNECTED TO SAID CONTROL PORTION OF SAID SEMICONDUCTOR SWITCHING MEANS FOR CONTOLLING THE CONDUCTION THEREOF, SAID CONTROL MEANS INCLUDING MAGNETIC REED SWITCH MEANS AND A MAGNETIC STRUCTURE FOR OPERATING THE SAME, SAID MAGNETIC REED SWITCH MEANS INCLUDING FIRST AND SECOND MAGNETIC REED ELEMENTS HAVING PORTIONS WITH CONTACTS ADAPTED TO ENGAGE EACH OTHER TO COMPLETE A CIRCUIT THERETHROUGH AND A SEALED ENCLOSURE ABOUT SAID PORTIONS, SAID REED ELEMENTS HAVING PORTION EXTENDING OUTSIDE SAID ENCLOSURE, SAID MAGNETIC STRCTURE INCLUDING POLE PIECES CONNECTED TO SAID PORTIONS OF SAID MAGNETIC REED ELEMENTS EXTENDING OUTSIDE SAID ENCLOSURE, AND A ROTOR HAVING A PERMANENT MAGNET AND DISCRETE MAGNETIC POLES WITH ALTERNATE POLES BEING OF OPPOSITE POLARTIY, SAID ROTOR BEING MOVABLE TO ALIGN ADJACENT ONES OF SAID POLES THEREOF WITH SAID POLE PIECES AND THEN DISPLACE SAID POLES FROM SAID POLE PIECES, WHEREBY THE FLUX THROUGH SAID MAGNETIC REED SWITCH MEANS CHANGES SUDDENLY AND REVERSES IN POLARITY TO PROVIDE RAPID SWITCHING ACTION.

References Cited (Backward Citations)

GB545818A Cited
US2433650A Cited
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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) 1969-12-12 1970-06-13 1970-12-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-12-12 1974-06-13 1974-12-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-12-12 1978-06-13 1978-12-13 $7700.00 Window Closed / Lapsed

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