Keyed control device for machines and other instrumentalities

Details Keyed control device for machines and other instrumentalities Keyed control device for machines and other instrumentalities

1972-08-14

1976-01-13

Thesz, Jr., Joseph M.

Registers

Platform operated

Platform actuated traffic counters

235 92PD, 235 92AC, 235 92R, G06M 302

Patent

active

039327329

ABSTRACT:
A keyed control device arranged to measure and control an operating characteristic of a machine or other instrumentality, and at a predetermined measurement of the operating characteristic will function to control the energization of means for interrupting an established control circuit to the machine or instrumentality. The control device includes a plug-in keying unit which limits use of the machine or instrumentality to authorized personnel. The keying unit may contain means for either or both visually and non-visually measuring the operating characteristic of the machine or instrumentality, such as a counter of signal impulses representative of the machine or instrumentality productivity. Upon reaching a predetermined number of operations, means are energizable through suitable control devices to shut down or terminate an operating characteristic of the machine or the instrumentality until such time as the authorized keying unit is replaced by another unit which is preset to permit delivery of the predetermined number of machine or instrumentality operations, or by "recharging" the "discharged" keying unit to a predetermined capacity of deliverable operations.

REFERENCES:
patent: 3287543 (1966-11-01), Halpern
patent: 3356021 (1967-12-01), May et al.
patent: 3436530 (1969-04-01), Faude et al.
patent: 3500342 (1970-03-01), Bissett et al.
patent: 3560715 (1971-02-01), Hiroo Akamatsu et al.
patent: 3670924 (1972-06-01), Asper

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