Vacuum breaker

Details Vacuum breaker Vacuum breaker

1985-10-03

1987-03-03

Michalsky, Gerald A.

Fluid handling

Back flow prevention by vacuum breaking

Air vent in liquid flow line

137216, 137217, 137269, 137270, 137860, F16K 2400

Patent

active

046467750

ABSTRACT:
A vacuum breaker for connection in the discharge line from a source of liquid. The preferred embodiment comprises an elongated body for connection in the discharge line and opening to atmosphere through a lateral passageway selectively closed by a cylindrical sleeve coaxially carried by said body. In the open position of the sleeve the vacuum breaker is particularly adapted for in-line installation in the drain line of appliances. Various applications for the vacuum breaker are disclosed.

REFERENCES:
patent: 159142 (1975-01-01), Baird
patent: 1086641 (1914-02-01), Blume
patent: 2217132 (1940-10-01), O'Brien
patent: 2287534 (1942-06-01), Powers
patent: 2347988 (1944-05-01), Burke
patent: 2370247 (1945-02-01), Kenney
patent: 2738798 (1956-03-01), Goodrie
patent: 2850299 (1958-09-01), Risley
patent: 2878826 (1959-03-01), Dolenga
patent: 3011512 (1961-12-01), Moen
patent: 3307571 (1967-03-01), Smith
patent: 3417775 (1968-12-01), Smith
patent: 4049018 (1977-09-01), Skibowski
patent: 4475570 (1984-10-01), Pike et al.

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