Pneumatic valve assembly for controlling a stream of compressed

Details Pneumatic valve assembly for controlling a stream of compressed Pneumatic valve assembly for controlling a stream of compressed

1989-04-10

1990-10-23

Michalsky, Gerald A.

Fluid handling

With indicator, register, recorder, alarm or inspection means

Fluid pressure responsive indicator, recorder or alarm

91403, 1376256, 251 65, F15B 13042

Patent

active

049644246

ABSTRACT:
This invention relates to a pneumatic valve assembly for controlling a compressed air stream in response to a non-contacting actuation. It is desired to provide such a valve assembly which is adapted to control high working pressures without an intermediate amplifier. This is accomplished in that a pivoted one-armed or double-armed lever is provided with a permanent magnet on one side or on each of both sides of its pivotal axis and via a ferromagnetic or magnetic actuating member which is moved into the proximity of the permanent magnet or magnets and via a plunger causes a pilot orifice to be opened or closed, which orifice is adapted to be flown through by a pilot air stream for actuating a pilot piston for moving a valve piston to positions in which the valve is opened or closed.

REFERENCES:
patent: 2575086 (1951-11-01), Atchison
patent: 3398764 (1968-08-01), Herion
patent: 3517699 (1970-06-01), Marcum
patent: 4137942 (1979-02-01), Hargraves et al.
patent: 4630645 (1986-12-01), Spa

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