Piercing valve stem assembly and system

Details Piercing valve stem assembly and system Piercing valve stem assembly and system

2008-04-04

2011-11-29

Rivell, John (Department: 3753)

Fluid handling

Destructible or deformable element controlled

Destructible element

C137S318000, C222S083000

Reexamination Certificate

active

08066025

ABSTRACT:
A simplified piercing valve stem assembly system and apparatus which includes a valve stem component to which a piercing point has been securely affixed, and an easily manufactured stub-out with a flattened or partially flattened end adapted for piercing.

REFERENCES:
patent: 2391583 (1945-12-01), Martin
patent: 2875777 (1959-03-01), Lacart
patent: 2881011 (1959-04-01), Coughlin
patent: 3038490 (1962-06-01), Yocum
patent: 4216793 (1980-08-01), Volgstadt
patent: 4598731 (1986-07-01), Colson
patent: 5169122 (1992-12-01), Sunderland
patent: 5327923 (1994-07-01), Eischen
patent: 5694971 (1997-12-01), Wilcock
patent: 5967197 (1999-10-01), Shown

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