Bimetal electrode and method of making same

Details Bimetal electrode and method of making same Bimetal electrode and method of making same

1981-02-09

1986-03-11

Ramsey, Kenneth J.

Electric lamp or space discharge component or device manufacturi

Process

Spark plug or spark gap making

72258, 313141, 445 49, H01T 2102

Patent

active

045753431

ABSTRACT:
A method of producing bimetal electrodes is disclosed in which a core of one metal is positioned within a cup of another metal so that the core is recessed back from the open end of the cup. In two embodiments, where the core is fully encapsulated, the open end of the cup is initially bottled or bent inward and subsequently the assembly is pressed through an extrusion die with a tool having a nose with an area substantially equal to the area of the core. In one such embodiment, a weld lug is produced by said tool during the extrusion. Such tool completes the closing of the open end of the cup to fully encapsulate the core and applies the principal extrusion force through the closed end to the core and from the core to the forward end or originally closed end of the cup. Subsequently, the extruded part is trimmed and additionally worked as required. In another embodiment, similar tooling is provided to produce an electrode in which the core is not fully encapsulated. In such embodiment, the cup is not bottled prior to the extrusion operation.

REFERENCES:
patent: 2849788 (1958-09-01), Creek
patent: 2945293 (1960-07-01), Last
patent: 2955222 (1960-10-01), Beesch
patent: 3040417 (1962-06-01), Newton
patent: 3144576 (1964-08-01), Hagmaier et al.
patent: 3356882 (1967-12-01), Hallaver et al.
patent: 3548472 (1970-12-01), Urushiwara et al.
patent: 3818555 (1974-06-01), Yamaguchi et al.
patent: 3857145 (1974-12-01), Yamaguchi et al.

Affiliated with

Also associated with

Rating

Bimetal electrode and method of making same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Bimetal electrode and method of making same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bimetal electrode and method of making same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2190554