Emergency draining device for stopping pneumatic cylinders

Details Emergency draining device for stopping pneumatic cylinders Emergency draining device for stopping pneumatic cylinders

1986-09-29

1987-09-01

Look, Edward K.

Motors: expansible chamber type

With motive fluid valve

Self-opening exhaust valve held closed by inlet pressure

91448, 91450, 91461, 91464, F01B 300

Patent

active

046900357

ABSTRACT:
An emergency drain device for pneumatic cylinders which is integrated in an orientatable connection fixed directly to the cylinder body and comprises a valve which closes an orifice of the bolt of the connection, going to the atmosphere, when a control pressure is applied to the head of the bolt.
This device is advantageously used in installations where a general isolating switch, controlled by the same control pressure, connects the general distribution line to the atmosphere, for example in the case of an emergency, when said pressure disappears.

REFERENCES:
patent: 1506012 (1924-08-01), Lewis
patent: 1726102 (1929-08-01), Forman
patent: 3099136 (1963-07-01), Carlson
patent: 3187637 (1965-06-01), Edmund
patent: 3960059 (1976-06-01), Schexnayder
patent: 4475442 (1984-10-01), Breeden

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