Electrical plug

Details Electrical plug Electrical plug

1981-10-13

1983-09-20

Rosenbaum, Mark

Geometrical instruments

339196M, 339218M, H01R 300

Patent

active

044051948

ABSTRACT:
An electrical plug including a base having a rear portion with terminals, a front portion in which a recess is formed for receiving a fuse, and having openings extending from the recess to the rear portion. An insulating cap, including pins for extending into and closing the openings, is attached to the rear portion of the base to cover the terminals before forming an injection molded plug body of plastic material around the rear portion. If the insulating cap is inadvertently omitted the plastic material flows into the recess, preventing insertion of a fuse, thus protecting against use of a defective plug.

REFERENCES:
patent: 2528971 (1950-11-01), Philips
patent: 3829819 (1974-08-01), Eckart
Design Engineering, Integral Moulded Plug Improves Appliance Safety, 11-1978, p. 27.

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