Electrode assembly structure

Details Electrode assembly structure Electrode assembly structure

1996-11-27

1999-08-10

O'Shea, Sandra L.

Electric lamp and discharge devices

Spark plugs

With particular connector structure

313136, 313138, 313145, 445 7, 123169CB, H01T 1336, H01T 1356

Patent

active

059363312

ABSTRACT:
An electrode assembly having a structure which minimizes stress cracks within its outer housing is disclosed. The outer housing is comprised of a ceramic tube having a bore therethrough which is coated with an epoxy material. An insulated electrical conductor with the wires contained therein in an exposed condition adjacent the end thereof is received in one end of the tube and is slidably advanced within the bore to the approximate midpoint of the tube. An electrode member is received in the opposite end of the tube and is slidably advanced within the bore so that its end contacts the exposed wires of the electrical conductor causing the ends of the wires to flare outwardly and grippingly engage the surface defining the bore in the tube. Subsequent heating of the electrode assembly causes the epoxy within the bore of the tube to bind the tube to the electrode member, the exposed wires and the insulated portion of the electrical conductor resulting in a solid, unitary construction for the electrode assembly.

REFERENCES:
patent: 2281511 (1942-04-01), Parkin
patent: 2489410 (1949-11-01), Hahn
patent: 2934668 (1960-04-01), Dall
patent: 3076113 (1963-01-01), Candelise
patent: 4433266 (1984-02-01), Riehl

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