Jam detector

Details Jam detector Jam detector

1978-08-30

1981-03-24

Thesz, Joseph M.

Registers

Platform operated

Platform actuated traffic counters

235 92FP, 235 92DN, 235 92V, 235 92SB, G06M 302

Patent

active

042582504

ABSTRACT:
A system for use in detecting jams in a series of members of defined length which are moving along a predetermined path includes a pulse generator for providing sequential pulses, each representative of a unit of length. A counter having a preset number therein representative of the defined length of a member plus an additional fixed length substantially less than that of a member receives an input from the pulse generator and from a sensor positioned adjacent the path of movement. During the period that a member is sensed, the preset count in the counter is reduced by the pulse generating means and if that count is reduced to zero, a jam condition is indicated and means are provided to stop movement of the members.

REFERENCES:
patent: 3150873 (1964-09-01), MacGregor
patent: 3659081 (1972-04-01), Piccione
patent: 3779440 (1973-12-01), Casale et al.

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