Double valve construction

Details Double valve construction Double valve construction

1977-09-26

1980-02-26

Schwadron, Martin P.

Fluid handling

With repair, tapping, assembly, or disassembly means

Removable valve with normally disabled supplemental check valve

13761421, 13761405, F16K 1518

Patent

active

041900758

ABSTRACT:
A double valve construction for gas or vacuum outlets which are operable by the insertion of an adapter to deliver gas or vacuum to an intended use including a secondary housing which is connected to the gas or vacuum and has a secondary valve. A primary housing is adapted to interfit with the secondary housing such that the secondary valve is opened but allowing the two housings to be adjustable for varying plaster thicknesses of the wall in which the outlet is mounted. The primary housing has a dust cap closing its delivery end. A primary valve is formed by the interrelationship of the primary housing into the secondary housing and normally prevents the gas or vacuum from reacting the primary housing. As an adapter is inserted into the primary housing, the dust cap is displaced a predetermined distance until it opens the primary valve allowing the gas or vacuum to enter the adapter.

REFERENCES:
patent: Re28334 (1975-02-01), Cranage
patent: 2905487 (1959-09-01), Schifter
patent: 3563267 (1971-02-01), Thompson
patent: 3931829 (1976-01-01), McWhinnie, Jr. et al.

Affiliated with

Also associated with

Rating

Double valve construction does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Double valve construction, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Double valve construction will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2109433