Spark plug structure

Details Spark plug structure Spark plug structure

1989-06-21

1990-08-14

O'Shea, Sandra L.

Electric lamp and discharge devices

Spark plugs

With specific joint structure

313137, H01T 1320, H01T 1338

Patent

active

049490060

ABSTRACT:
A spark plug structure comprising; a cylindrical metallic shell; a joint type insulator having a center bore, and including a front half piece and a rear half piece, each made of a tubular aluminum nitride (AlN), and the front and rear half pieces being joined at their respective end by means of a glass sealant, and encased into the metallic shell; a center electrode placed into the center bore of the insulator; an elongated terminal placed into the rear half piece of the insulator; an electrically conductive glass provided to seal respective spaces appeared between the center electrode, insulator and the terminal; the front half piece having an elongated projection, the length of which is more than 2.0 mm, and the rear half piece having a recess the depth of which is more than 2.0 mm, the front and rear half pieces being jointed at the projection and the recess by means of an annular glass sealant which has thickness of less than 2.0 mm and length of more than 2.0 mm.

REFERENCES:
patent: 1169203 (1916-01-01), Sprung
patent: 1344954 (1920-06-01), Meyer
patent: 1345765 (1920-07-01), Hadrich
patent: 2053369 (1936-09-01), Jeffery et al.
patent: 2301686 (1942-11-01), Doran
patent: 2863080 (1958-12-01), Bychinsky et al.
patent: 3295005 (1966-12-01), Poellet et al.

Affiliated with

Also associated with

Rating

Spark plug structure does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Spark plug structure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spark plug structure will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-464816