Compact proximity switch arrangement

Details Compact proximity switch arrangement Compact proximity switch arrangement

1988-10-13

1990-03-27

Tolin, Gerald P.

Electricity: circuit makers and breakers

Fluid pressure

Piston

73745, 340626, H01H 3538

Patent

active

049122916

ABSTRACT:
The invention is concerned with switch devices and more particularly with devices to be fitted to piston and cylinder actuators to monitor the position of the piston therein. The device comprises a switch which has two connection or terminal contacts arranged at its axially opposite ends. These terminal contacts are respectively connected with signal conductors which may for instance be in the form of flexible cable wire. The switch is accommodated in a sleeve surrounding it. The two signal conductors are extended as far as a common axial terminal or connection end of the switch. For producing an electrical connection of the one signal conductor with the second terminal contact the current is caused to flow through the sleeve.

REFERENCES:
patent: 4071725 (1978-01-01), Smith
patent: 4600436 (1987-07-01), Brausfeld
patent: 4752657 (1988-06-01), Kane
patent: 4755636 (1988-07-01), Akio
patent: 4793188 (1988-12-01), Strasser
patent: 4800241 (1989-01-01), McNamara

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