Gladhand with built-in dirt protection plug

Details Gladhand with built-in dirt protection plug Gladhand with built-in dirt protection plug

1985-08-19

1986-05-27

Chambers, A. Michael

Fluid handling

Systems

Flow path with serial valves and/or closures

137381, 137494, 137509, 137556, F16K 3700

Patent

active

045909679

ABSTRACT:
A combination gladhand and dirt protection plug includes a gladhand body with a chamber within the body. There are a pair of air ports in communication with the chamber, with one of the ports functioning as an air inlet. A seal is positioned in one of the air ports and there is a dirt protection plug movable in the chamber toward and away from the seal to open and close said one port. A spring is positioned within the body to bias the plug toward a port closing position. The plug has a surface in communication with the air inlet, with air pressure at the inlet, applied to the plug surface, causing the plug to automatically move against the spring and away from the seal to an open position.

REFERENCES:
patent: 2891570 (1959-06-01), Krupp
patent: 2954047 (1960-09-01), Faltejsek et al.
patent: 2962045 (1960-11-01), Christensen
patent: 3245428 (1966-04-01), Klimak et al.
patent: 3410304 (1968-11-01), Pahl, Jr.
patent: 3960365 (1976-06-01), Horowitz
patent: 4109673 (1978-08-01), Horowitz et al.

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