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US3569787A Expired / Lapsed US ⏱️ 0.0 years remaining

Electrical ignitor for fuel ignition

Assignee: TDK Micronas GmbH
•
Filing: 1969-02-03
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Granted: 1971-03-09
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Expires: 1989-02-03
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Abstract

Abstract An electrical ignitor for fuel appliances formed of a mounting block of insulating material having an opening therein. An ignitor element having fragile properties is exposed to the opening in the mounting block. A pair of buss terminals are rigidly secured at one end to the mounting block and the ignitor element is mounted between the other ends of the buss terminals. The ends of the buss terminals to which said ignitor element is mounted can expand and contract with temperature changes so as to prevent the ignitor element from breaking. The ignitor element may be formed of molybdenum disilicide which is soldered or otherwise attached to the buss terminals.

Inventors

  • 👤 Reed A Palmer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 07:39
CPC Classifications
F; F23; F23Q; F23Q1/00; F23Q1/02; F23Q1/06

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 159 words
An electrical ignitor for fuel appliances comprising: a mounting block of insulating material having an opening therein; an ignitor element having a rod-shaped structure and having fragile properties exposed to said opening in said mounting block; means for securing said ignitor element within said block comprising a pair of buss terminals; said buss terminals being rigidly secured at one end to said mounting block and having said ignitor element mounted between its outer ends for allowing said other ends to expand and contract with temperature changes, thereby preveNting said ignitor element from breaking; said mounting block comprising an upper portion and a lower portion, said buss terminals being secured between said mounting block portions; said mounting block portions having slots therein for inserting said buss terminals; and said buss terminals having apertures through which the ends of said ignitor element extends, a metal bushing surrounding said ignitor element ends, said ignitor element and said metal bushings being welded together.
Claim 2
Dependent Claim 159 words
An electrical ignitor for fuel appliances comprising: a mounting block of insulating material having an opening therein; an ignitor element having a rod-shaped structure and having fragile properties exposed to said opening in said mounting block; means for securing said ignitor element within said block comprising a pair of buss terminals; said buss terminals being rigidly secured at one end to said mounting block and having said ignitor element mounted between its outer ends for allowing said other ends to expand and contract with temperature changes, thereby preveNting said ignitor element from breaking; said mounting block comprising an upper portion and a lower portion, said buss terminals being secured between said mounting block portions; said mounting block portions having slots therein for inserting said buss terminals; and said buss terminals having apertures through which the ends of said ignitor element extends, a metal bushing surrounding said ignitor element ends, said ignitor element and said metal bushings being welded together.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-03-08 1974-09-07 1975-03-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-03-08 1978-09-07 1979-03-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-03-08 1982-09-07 1983-03-09 $7700.00 Window Closed / Lapsed

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