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Title: Safety lock-out device for electrical appliances

A safety lock-out device prevents the insertion of an electrical power cord into an electrical power cord receptacle of an electrical appliance. The devise comprises a mounting plate fastened to the appliance and a cover plate hingedly attached to the appliance. The cover plate is movable between a first position and a second position such that, in the first position, the cover plate covers and prevents insertion of a power cord into the appliance receptacle. In said second position, the appliance receptacle is uncovered to permit insertion of a power cord into the receptacle. Extending a lock shank through aligned openings formed in flange members extending from the mounting plate and the cover plate locks the cover plate in the first position.
  1. (Bloomingdale, IL)
Issue Date:
OSTI Identifier:
Universities Research Association, Inc. (Washington, DC) FNAL
Patent Number(s):
US 5535096
Contract Number:
Research Org:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Country of Publication:
United States
safety; lock-out; device; electrical; appliances; prevents; insertion; power; cord; receptacle; appliance; devise; comprises; mounting; plate; fastened; cover; hingedly; attached; movable; position; covers; uncovered; permit; extending; lock; shank; aligned; openings; formed; flange; locks; aligned openings; power cord; electrical power; cover plate; mounting plate; permit insertion; safety lock-out; lock-out device; /361/174/439/