Spark plug

Details Spark plug Spark plug

1988-02-24

1988-11-22

Ramsey, Kenneth J.

Electric lamp or space discharge component or device manufacturi

Process

Spark plug or spark gap making

228110, H01T 2102, B23K 2010

Patent

active

047862670

ABSTRACT:
At least one of center and ground electrodes of a spark plug has a thin layer formed by bonding noble metal powder on a discharge-related surface area of the electrode stock of said at least one of said center and ground electrodes in accordance with ultrasonic bonding. Instead of the thin layer, a discharge tip may be formed there by boring a hole in the electrode stock, filling noble metal powder, which has been obtained by coating spherical or flaky metal particles with a corresponding noble metal or noble metal alloy, in the hole and then bonding the thus-filled noble metal powder in accordance with ultrasonic bonding. As a further alternative, a tip made of a noble metal or an alloy thereof may be bonded by ultrasonic bonding or resistance welding in the hole with a layer of metal powder of a metal having good high-temperature erosion resistance or an alloy thereof interposed therebetween. The spark plug enjoys a long operating life.

REFERENCES:
patent: 3854067 (1974-12-01), Morgan
patent: 4139140 (1979-02-01), Stockel
patent: 4142662 (1979-03-01), Holbrook et al.
patent: 4261085 (1981-04-01), Nishio et al.
patent: 4414483 (1983-11-01), Nishio et al.
patent: 4488081 (1984-12-01), Kondo et al.
patent: 4540910 (1985-09-01), Kondo et al.
patent: 4699600 (1987-10-01), Kordo

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-432552