Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
July 28, 2015
Patent Application Number
13367096
Date Filed
February 6, 2012
Patent Citations Received
Patent Primary Examiner
Patent abstract
A safety apparatus for personnel on an oil drilling rig includes a cylindrical quick disconnect switch having a receptacle and a plunger. The receptacle has an open circuit pair of electrical wires. The plunger is configured to attach to a derrick man. The plunger and the receptacle are configured to mate when the plunger is inserted into the receptacle and to remain frictionally mated until pulled apart. The mating results in closing the circuit between the pair of electrical wires.
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