Apparatus for detecting cracks in a flexible coupling

Communications: electrical – Condition responsive indicating system – Specific condition

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464 23, G08B 2100

Patent

active

047149175

ABSTRACT:
An apparatus for detecting cracks in a flexible rotating coupling is disclosed in which the flexible coupling includes a flexible element having a plurality of flexible discs. An electrically conductive, normally continuous, line is affixed to at least one of the flexible discs and connected to a circuit. The conductive line becomes discontinuous if the disc cracks. The circuit is mounted on the coupling and transmits a signal indicative of the continuous or discontinuous condition of the conductive line and thereby the intact or cracked condition of the flexible disc. The transmitted signal is received by a stationary circuit which provides an output indication of the disc's intact or cracked condition.

REFERENCES:
patent: 1789862 (1931-01-01), Bricken
patent: 3654775 (1974-04-01), Williams
patent: 3786776 (1974-01-01), Buthe et al.
patent: 4055966 (1977-11-01), Fredericks
patent: 4254415 (1981-03-01), Kaufman
patent: 4276758 (1981-07-01), Coman et al.
patent: 4398173 (1983-08-01), Kulischenko et al.

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