Glow plug manufacture

Details Glow plug manufacture Glow plug manufacture

1980-05-22

1982-01-26

McQuade, John

Metal working

Method of mechanical manufacture

Electrical device making

29613, 29520, 219267, 219270, 361266, H01C 1702

Patent

active

043121209

ABSTRACT:
The invention is a method of making a pressure tight seal for a glow plug characterized by applying a high current to heat a groove (31) in the outer shell (3) of a glow plug while simultaneously pressing together the sealing elements adjacent the groove i.e. an insulator (2), a gasket (1), the flared end (42) of a protective tube (4) and a shoulder (32) within the shell (3). The grooves (31) concentrates the heat and allows the shell to be compressed around the elements of the seal.

REFERENCES:
patent: 3164748 (1965-01-01), Testerini
patent: 3296496 (1967-01-01), Baxter et al.
patent: 3749980 (1973-07-01), Baxter
patent: 3934116 (1976-01-01), Cunningham et al.
patent: 4087904 (1978-05-01), Steinke et al.
patent: 4107510 (1978-08-01), Tombs et al.
patent: 4112577 (1978-09-01), Mann

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