Stop and waste valve construction

Details Stop and waste valve construction Stop and waste valve construction

1974-08-28

1976-11-09

Schwadron, Martin P.

Fluid handling

Siphons

13762527, F04F 1000, F16K 1104

Patent

active

039904660

ABSTRACT:
A stop and waste valve construction disposed in a globe or gate valve housing, through which a water or other liquid supply travels. A tubular stem is threadedly connected to the housing adjacent its water chamber. Threadedly connected within the tubular stem is a shaft having a stop valve at one end which can be seated on a valve seat within the water chamber in the valve housing to provide a positive water shut-off by precluding communication between the inlet to and the outlet from the valve housing. A siphon tube is integrally connected to the wall of the tubular stem for draining the water chamber in the valve housing of waste through the tubular stem when the stop valve is seated on the valve seat in the water chamber. This insures that no foreign waste material can enter into the water supply system.

REFERENCES:
patent: 75376 (1868-03-01), Cooper
patent: 109371 (1870-11-01), Bailey
patent: 250897 (1881-12-01), Descours
patent: 672078 (1901-04-01), Harrington
patent: 898383 (1908-09-01), Mortimer
patent: 1301549 (1919-04-01), Fosler
patent: 2123814 (1938-07-01), Summers
patent: 3019806 (1962-02-01), Pirok et al.

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