Electromagnetic valve with electric signal generator

Fluid handling – With indicator – register – recorder – alarm or inspection means – Position or extent of motion indicator

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Details

137556, 251129, 251138, 116202, 116204, 116277, F16K 3700

Patent

active

041956621

ABSTRACT:
An electromagnetic valve is equipped with a signal generator which operates in dependence on the positions assumed by the internal valve mechanism and which represents a relatively small unit which is attached in various positions to the housing of the magnetic actuator mechanism of the valve. The signal generator has at least one electrical switch which is actuated mechanically by a pin which transmits the motions of the armature to the switch without any appreciable interference with the operation of the magnetic mechanism. The switch is mounted within a housing on an insert which may be located in various positions relative to the housing and may suitably be a microswitch. Thesignal generator housing is sealingly attached to a mounting bracket which, in turn, is mounted on the housing of the magnetic actuator of the valve. The passage of the actuating pin is sealed against the outside by appropriate seals. The signal generator housing may include a transparent, possibly colored window or lens behind which is disposed a lamp which is actuated by the switch. The lamp and its load resistor are held in appropriate recesses of the switch insert, the position of which relative to the mounting bracket is secured by a guide pin.

REFERENCES:
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patent: 3367365 (1968-02-01), Stevens
patent: 3420494 (1969-01-01), Egner
patent: 3620185 (1971-11-01), Keller et al.
patent: 3621873 (1971-11-01), Kenann et al.
patent: 3923475 (1975-12-01), Stenzel
patent: 4027849 (1977-06-01), Muller

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