Proximity operated machine control

Details Proximity operated machine control Proximity operated machine control

G - Physics

05

B

342/17

G05B 9/02 (2006.01) F16P 3/18 (2006.01) H03K 17/18 (2006.01) H03K 17/945 (2006.01) H03K 17/96 (2006.01)

Patent

CA 1337724

A machine control system for electrically-operated apparatus wherein the operator's hands must be located upon separate spaced switches before the machine functions. The switches are of the proximity type to sense the presence of the operator's hand upon the hand being brought within a predetermined distance from the associated switch, and each switch apparatus employs yieldable resistance means, such as an elastic diaphragm, to provide slight resistance to the movement of the operator's hand toward said predetermined distance, but does not require such force as to produce medical problems, such as carpal tunnel syndrome.

606438

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