Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
December 25, 2018
Patent Application Number
15662790
Date Filed
July 28, 2017
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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