Test valve

Details Test valve Test valve

1988-03-14

1989-07-18

Levy, Stewart J.

Measuring and testing

With fluid pressure

Clamp, plug, or sealing feature

4199, 138 90, G01M 304

Patent

active

048481556

ABSTRACT:
The present invention is a test valve plug assembly designed to be installed within a drain tee which connects a tub drainage and overflow system to the drainage system of a building. In its closed position, the test valve plug provides a means for closing the drain tee, thereby permitting the drainage system below the drain tee to be filled with water for testing purposes.

REFERENCES:
patent: 1720819 (1929-07-01), Cohen
patent: 1948220 (1934-02-01), Kennedy
patent: 3392409 (1968-07-01), Politz
patent: 4194252 (1980-03-01), Tsuei
patent: 4203473 (1980-05-01), Roberson, Sr.
patent: 4429568 (1984-02-01), Sullivan
patent: 4460019 (1984-07-01), Condon
patent: 4542642 (1985-09-01), Tagliarino
patent: 4602504 (1986-07-01), Barber
patent: 4658861 (1987-04-01), Roberson
patent: 4669131 (1987-06-01), Barlow

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