Method and apparatus for treating header plug gasket face

Details Method and apparatus for treating header plug gasket face Method and apparatus for treating header plug gasket face

1996-11-12

1997-12-09

Vo, Peter

Metal working

Method of mechanical manufacture

Heat exchanger or boiler making

29 38A, 29 26R, 2940202, 408 85, B23P 1526

Patent

active

056946856

ABSTRACT:
An apparatus and method for roughening or otherwise changing the gasket face of a bolt-like header plug. This apparatus utilizes a cutting or etching tool that cuts into the originally flat gasket face. A threaded shank formed by a lathe or other screw cutting machine extends from the face and is not useable for modifying the face. Roughening or otherwise modifying of the gasket face is in the form of grooves cut into the face so as to increase the sealing effect of the header plug when in use.

REFERENCES:
patent: 1905651 (1933-04-01), Raule
patent: 2032127 (1936-02-01), Holmes
patent: 2779039 (1957-01-01), Borner
patent: 3555656 (1971-01-01), Brown et al.
patent: 4283615 (1981-08-01), Vrillon
patent: 4644635 (1987-02-01), Murai et al.
patent: 4750525 (1988-06-01), Vaughan
patent: 5149490 (1992-09-01), Brown et al.

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