Electronic method and apparatus for detecting and reporting...

Details Electronic method and apparatus for detecting and reporting... Electronic method and apparatus for detecting and reporting...

2005-03-22

2005-03-22

Wong, Albert K (Department: 2635)

Communications: electrical

Continuously variable indicating

Condition responsive

C340S686100, C340S686600, C340S480000

Reexamination Certificate

active

06870485

ABSTRACT:
A method and apparatus for preventing the unexpected loss of heavy mining equipment by detecting the separation of heavy metal parts at an early stage in the separation process, and providing a warning signal in response to which the particular machine that is having the difficulty may then be shut down in a timely manner. A spring-loaded switch is sandwiched between the heavy metal parts, which upon partial separation of the parts then expands and turns on an electrical switch to activate a radio transmitter, sending an alarm signal to a receiver at a remote location.

REFERENCES:
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patent: 5421600 (1995-06-01), Jones et al.
patent: 5621398 (1997-04-01), Blair et al.
patent: 6469638 (2002-10-01), Johnson
patent: 6753787 (2004-06-01), Cole
patent: 6774807 (2004-08-01), Lehfeldt et al.

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