Tamper-proof gas pin valve

Details Tamper-proof gas pin valve Tamper-proof gas pin valve

2006-01-03

2006-01-03

Jacyna, J. Casimer (Department: 3751)

Dispensing

Gas or vapor dispensing

C251S144000, C251S149600, C251S149700

Reexamination Certificate

active

06981612

ABSTRACT:
A pin valve assembly includes a spring biasing a piston against a seal to seal an opening of a gas cylinder. The spring compresses a length determined by a distance between the insert and the plunger. The insert is pressed into an opening opposite the plunger and held in place by at least one barb extending inward from an inner diameter of a body of the insert. The insert includes an opening to allow communication of gas pressure to a rear portion of the piston. The inner diameter of the pin valve assembly includes at least one barb to secure and prevent removal of the insert.

REFERENCES:
patent: 4545405 (1985-10-01), LaBelle
patent: 4879978 (1989-11-01), Pierce
patent: 5832965 (1998-11-01), Fasse et al.
patent: 5975489 (1999-11-01), deCler et al.
patent: 2003/0062498 (2003-04-01), DeClar et al.

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