Safety interlock system

Details Safety interlock system Safety interlock system

1989-12-29

1991-11-12

Bell, Paul A.

Bookbinding: process and apparatus

Apparatus

With control means responsive to sensed condition

227 1, B42C 100

Patent

active

050643282

ABSTRACT:
An electric circuit interlock system which senses the position of the plurality of doors associated with a machine enclosure, the enclosure providing a safety guarding. The electric safety interlock system disables a main drive motor system when any one of the plurality of access doors is ajar. A manual override jog button is integrated into the electric safety interlock system at each of the plurality of access doors for jogging the main drive motor system. When any more than one of the plurality of access doors are open, each and every associated manual jog buttons must be actuated simultaneously to jog the main drive motor system (logical AND).

REFERENCES:
patent: 3816866 (1974-06-01), Miaskoff et al.
patent: 4614290 (1986-09-01), Boss
patent: 4621757 (1986-11-01), Osako
patent: 4767250 (1988-08-01), Garlichs

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