Electrical connectors – Alternatively connected – Coupling part
Patent
1986-09-19
1988-02-23
Weidenfeld, Gil
Electrical connectors
Alternatively connected
Coupling part
439369, 439135, H01R 2700, H01R 1358
Patent
active
047267801
ABSTRACT:
An adapter for a twist-lock extension cord in which the adapter replaces the female plug-end of the extension cord. The adapter has a face plate in which are formed three curved cutouts for receiving the three curved electrodes of a twist-lock male plug. There are also provided on the face plate two straight cutouts for receiving the two electrodes of a standard household male plug. One of the curved cutouts is ground, and also receives the ground of the standard household-type male plug. Three terminals are provided, one associated with the ground cutout, and each of the other two associated with a pair of one curved and one straight cutout. A clamp secures the exposed wires of the extension cord to the adapter for connection to the terminals, thereby converting the extension cord to one that receives not only twist-lock male plugs but also standard household-type male plugs.
REFERENCES:
patent: 1512203 (1924-10-01), De Reamer
patent: 2252454 (1941-08-01), Benander
patent: 2436217 (1948-02-01), Locktov
patent: 3113174 (1963-12-01), Spiteri
patent: 3676829 (1972-07-01), Gartland, Jr. et al.
patent: 4204738 (1980-05-01), Fillotson
patent: 4241969 (1980-12-01), D'Amato et al.
patent: 4643505 (1987-02-01), House et al.
Gerstein Milton S.
Howell Daniel W.
Weidenfeld Gil
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