Self-piercing valve assembly

Details Self-piercing valve assembly Self-piercing valve assembly

1998-06-03

2000-01-11

Walton, George L.

Fluid handling

Processes

Cleaning, repairing, or assembling

30 93, 137318, 222 91, 285197, 408102, 408137, B23B 4108, F16L 4106, F16K 4300

Patent

active

06012475&

ABSTRACT:
The present invention comprises an improved method and apparatus, associated with a self-piercing valve assembly for mounting the self-piercing valve on a pipe and for constraining movement of the valve on the pipe. In accordance with a preferred embodiment of the present invention, a self-piercing valve assembly comprises a clamping assembly and a crimping member associated with the clamping assembly, which crimping member "automatically" crimps a pipe and forms a recess therein when the self-piercing valve clamping assembly is tightened about the pipe, and simultaneously effects a crimping member/recess interface (much like a key-and-keyway interface) which inhibits relative angular rotation between the pipe and valve. The crimping member is, preferably, a rigid, projection or tab.

REFERENCES:
patent: 3038490 (1962-06-01), Yocum
patent: 3162211 (1964-12-01), Barusch
patent: 3198206 (1965-08-01), O'Brien
patent: 3336937 (1967-08-01), Ehrens et al.
patent: 3480036 (1969-11-01), Ehrens et al.
patent: 3788345 (1974-01-01), Tura
patent: 3973584 (1976-08-01), McKinnon
patent: 4611624 (1986-09-01), Snyder
patent: 4955406 (1990-09-01), Antoniello
patent: 5694971 (1997-12-01), Wilcock
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