Bayonet catch for a line of pressurized medium

Details Bayonet catch for a line of pressurized medium Bayonet catch for a line of pressurized medium

1984-01-27

1985-11-12

Scott, Samuel

Valves and valve actuation

With correlated flow path

Flow path joint interlocked with valve or actuator

13761406, 285DIG25, F16L 2900

Patent

active

045523339

ABSTRACT:
A bayonet catch for a line of pressurized medium, comprising a tubular body (10), a lever (1) journalled pivotably to the body for turning a valve means (12), as well as coupling elements (4, 9) at the forward end of said body for disconnectable coupling of a connecting plug (11), said coupling elements comprising a push-pull sleeve surrounding the forward end of the body. A problem with pneumatic line bayonet catches is that, when a catch is opened, the outlet side pressure strikes at great force out of a releasing plug with a consequence that the disconnected line end may get out of hand and cause damage. The problem has been resolved in a manner that lever (1) positively operates both said valve means (12) for opening and closing a valve and said push-pull sleeve (4) for coupling and uncoupling said connecting plug (11), and that between valve means (12) and a connecting plug sealing member (8) said body (10) is provided with a passage (14) which in the open position of said valve is closed by a seal (6) of push-pull sleeve (4) but in the closed position of said valve, prior to the displacement of said push-pull sleeve into the position for disconnecting said connecting plug (11), said seal (6) withdraws from in front of passage (14) for allowing the outlet side pressure to discharge to atmosphere.

REFERENCES:
patent: 1700073 (1929-01-01), Parker et al.
patent: 2505245 (1950-04-01), Hollerith
patent: 3077330 (1963-02-01), Lamphear
patent: 3404705 (1968-10-01), Zopf et al.
patent: 3664375 (1972-05-01), Marette

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