Parallel-blade/twist-lock adapter plug

Details Parallel-blade/twist-lock adapter plug Parallel-blade/twist-lock adapter plug

1984-12-17

1986-08-12

McQuade, John

Geometrical instruments

339 88R, 339156R, 339166R, H01R 13639

Patent

active

046052739

ABSTRACT:
An adapter for insertion into a twist-lock receptacle has a cylindrical lower section with downwardly protruding male twist-lock blade terminals, a transverse mid plane with holes and female connectors disposed below the surface of the mid-plane adapted to receive male terminals from a parallel blade power plug, and a removable hollow semi-cylindrical shell section for retaining the power plug in its inserted position.

REFERENCES:
patent: 2100094 (1937-11-01), Wahl
patent: 2436217 (1948-02-01), Loctov
patent: 2464893 (1949-03-01), Ross
patent: 2864069 (1958-12-01), Bingham et al.
patent: 2994849 (1961-08-01), Mussari, Jr.
patent: 3242455 (1966-03-01), Horvath et al.
patent: 3439308 (1969-04-01), Swartout
patent: 3571781 (1971-03-01), Gartland, Jr. et al.
patent: 4199207 (1980-04-01), Lee
patent: 4219693 (1980-08-01), French
patent: 4241969 (1980-12-01), D'Amato
patent: 4494809 (1985-01-01), Soloman

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