Plug arrangement for electric cord set

Details Plug arrangement for electric cord set Plug arrangement for electric cord set

1985-10-11

1987-04-07

Weidenfeld, Gil

Geometrical instruments

339196R, 339217PS, H01R 13502

Patent

active

046555366

ABSTRACT:
A female plug body for an electric cord set with at least two contact openings, one opening smaller than the other, has an insert made of a more rigid insulating material than the plug body, disposed within the plug body. The insert has a pair of cavities providing clearance for one side of each of a pair of contacts embedded within the plug body, so that the resistance to insertion of a male plug is not affected by the ambient temperature. The insert also provides a channel providing rigid support for the opening in the plug for the "hot" contact of the female plug which resists insertion of an oversized plug blade into the "hot" contact.

REFERENCES:
patent: 1410651 (1922-05-01), Caps
patent: 1894112 (1933-01-01), McNeil
patent: 2032470 (1936-03-01), Chirelstein
patent: 2531625 (1950-11-01), Hubbell
patent: 2545536 (1951-03-01), Von Holtz
patent: 2770786 (1956-11-01), Czyzewski
patent: 2834951 (1958-05-01), Aquillon et al.
patent: 2932000 (1960-04-01), Buchanan
patent: 4500160 (1985-02-01), Bertsch

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