The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 17, 1998
Filed:
Oct. 11, 1996
Applicant:
Inventor:
Jagdevinder Singh Hanspal, Stoke Poges, GB;
Assignee:
Smiths Industries PLC, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01T / ;
U.S. Cl.
CPC ...
313141 ; 313 115 ;
Abstract
An igniter has an inner electrode extending with a forward and rear ceramic sleeve. The rear end of the forward sleeve projects as a sliding fit within the forward end of the rear sleeve. A nickel alloy flange with a flexible shoulder has an inner neck brazed to a nickel layer on the outside of the rear sleeve. An outer collar on the flange is welded to the inside of the outer electrode to form a seal between the outside of the sleeve and the inside of the outer electrode. A metal cap is brazed to a nickel layer at the rear end of the rear sleeve and is welded to the inner electrode to seal the rear end of the rear sleeve.