Proximity switch for fluid cylinders

Details Proximity switch for fluid cylinders Proximity switch for fluid cylinders

1976-02-27

1978-01-31

Tolin, Gerald P.

Electricity: circuit makers and breakers

Fluid pressure

Piston

335205, 200 819M, H01H 3538

Patent

active

040717259

ABSTRACT:
The specification discloses a magnetic proximity sensing apparatus especially adapted for use with fluid cylinders having pistons formed from magnetically attractable material. The apparatus includes clamping means for securing it to a tie rod of a fluid cylinder or directly to the cylinder body in juxtaposition to a side of the cylinder without disassembly of the cylinder. Also included are magnetic actuator means responsive to the proximity of the fluid cylinder piston which close a switch and enable electrical circuitry for controlling fluid valves or other apparatus.

REFERENCES:
patent: 2310504 (1943-02-01), Aubert
patent: 3323087 (1967-05-01), Reed
patent: 3364361 (1968-01-01), Burger
patent: 3639868 (1972-02-01), Gasper

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