Controlled machine inhibition when control module is absent

Details Controlled machine inhibition when control module is absent Controlled machine inhibition when control module is absent

1980-10-01

1983-06-07

Zache, Raulfe B.

Boots, shoes, and leggings

G06F 1546

Patent

active

043874428

ABSTRACT:
Modularized control system arranged to inhibit operation of a controlled machine if an essential module is not installed. A control signal to a necessary operation, such as starting a controlled machine, is routed to a circuit on an essential module which supplies the control signal to its destination only if the essential module is installed and powered.

REFERENCES:
patent: 3978454 (1976-08-01), Willard
patent: 4030080 (1977-06-01), Burkett et al.
patent: 4200916 (1980-04-01), Seipp
patent: 4213190 (1980-07-01), Finlay et al.
Patent Application Ser. No. 89,799, filed 10/31/79.
Patent Application Ser. No. 192,118, filed 9/29/80.
IBM Technical Disclosure Bulletin, vol. 22, No. 10, Mar. 1980, pp. 4366-4368.

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