Top and side firing spark plug

Electric lamp and discharge devices – Spark plugs – Particular electrode structure or spacing

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

313118, 313123, 313139, 313140, 313143, H01T 1320, H01T 1346, H01T 1300, F02M 5706

Patent

active

058923195

ABSTRACT:
A spark plug derives an extended lifetime because a large plurality of sharp edges are provided on the center electrode, the ground electrode, or both to enhance spark propagation. In a first embodiment, the ground electrode has a conventional cantilever shape, but the center electrode extends into coplanar relation to a distal surface of the electrode so that sparks propagate from the cylindrical side walls of the center electrode. In variations of the first embodiment, the number of cantilevered ground electrodes is increased, with the ground electrodes being circumferentially and equidistantly spaced about the center electrode. In another embodiment, the ground electrode has an annular configuration and includes a cylindrical annular wall spaced radially outwardly of the cylindrical sidewall of the center electrode, in concentric relation to the center electrode. Variations of the second embodiment include screw threads, knurls, and various projections formed on the ground electrode, the center electrode, or both.

REFERENCES:
patent: 1253584 (1918-01-01), Gerken
patent: 1325439 (1919-12-01), Dinger
patent: 1334135 (1920-03-01), Cuevas
patent: 1361326 (1920-12-01), Hachmann
patent: 1439791 (1922-12-01), Bovey
patent: 1465935 (1923-08-01), Eastman
patent: 2453048 (1948-12-01), Tognola et al.
patent: 2648320 (1953-08-01), Phillips et al.
patent: 3958144 (1976-05-01), Franks
patent: 4954243 (1990-09-01), Suzuki et al.
patent: 5502351 (1996-03-01), Katoh et al.
patent: 5502352 (1996-03-01), Katoh et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Top and side firing spark plug does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

     

Profile ID: LFUS-PAI-O-1374220

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.