Valves and valve actuation – With correlated flow path – Pipe coupling or union
Patent
1992-09-02
1993-09-21
Michalsky, Gerald A.
Valves and valve actuation
With correlated flow path
Pipe coupling or union
137556, 137614, 251152, 251288, 251315, F16K 322
Patent
active
052462005
ABSTRACT:
A trouble-shooting, one-quarter-turn quick shut-off valve is mountable directly to a compression-type fitting outlet of a defective shut-off valve in series with the defective valve so that the quick shut-off valve becomes located immediately downstream from the defective valve. Projecting from an inlet end of a housing of the quick shut-off valve is an inlet-tail-tube having an inlet passage extending axially through the inlet-tail-tube. This inlet-tail-tube is adapted for insertion directly into a socket in a compression-type fitting outlet of a shut-off valve. The inlet-tail-tube is made of suitable material for making a compression connection thereto, and the outside diameter of this inlet-tail-tube is equal to an outside diameter often used for flexible plumbing tubing of the type adapted for insertion into a socket of a compression-type fitting for enabling a compression connection to be made between the inlet-tail-tube and the compression-type socket into which the inlet-tail-tube has been inserted. The inlet-tail-tube is shown provided on an inlet fitting having an exteriorly threaded downstream projection screwed into a socket on the inlet end of the valve housing with a recess holding a seat seal against a quarter-turn rotatable valve element. This valve is also adapted to serve as a high-quality, convenient-to-install, premium valve unit for use in a new plumbing installation.
REFERENCES:
patent: 958073 (1910-05-01), Barnstead
patent: 1287107 (1918-12-01), Robertson
patent: 1414118 (1922-04-01), Eller et al.
patent: 2039220 (1936-04-01), Heggem
patent: 2993677 (1961-07-01), Ford
patent: 4508130 (1985-04-01), Studer et al.
patent: 4667928 (1987-05-01), Davatz et al.
patent: 4691726 (1987-09-01), Studer et al.
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