Method and apparatus for securing the continuity of a power supp

Details Method and apparatus for securing the continuity of a power supp Method and apparatus for securing the continuity of a power supp

1998-10-28

2000-06-27

Bradley, Paula

Electrical connectors

With coupling movement-actuating means or retaining means in...

Retaining means

439102, H01R 450

Patent

active

06080002&

ABSTRACT:
An electrical plug is equipped with an earthing pin 180 comprises an elongate metal body 260 defining a groove for holding captive a split band 460 of a moulded plastic material, which has inwardly facing nodes 480 which are receivable in a transverse passage through the body. The body 260 further defines a longitudinal threaded bore for receiving a threaded shank 380 having a tapered tip which, in use, is seated between the inner nodes on the band 460. When the pin 180 is inserted into a corresponding socket of an existing electrical outlet (not shown) and a circular cap 420 on the exposed end of the threaded shank 380 is rotated, the tip of the shank 400 bears against the nodes 480 on the band 460, thereby expanding the band radially outwardly until it frictionally engages an adjacent portion of the socket in which the pin 180 is located. The pin 180 together with any electrically conducting pins associated with the same plug are hence secured against inadvertent extraction from their respective sockets.

REFERENCES:
patent: 2674722 (1954-04-01), Hubbell et al.
patent: 2683864 (1954-07-01), Hubbell et al.
patent: 2872654 (1959-02-01), Smith
patent: 3890025 (1975-06-01), Gray
patent: 4111509 (1978-09-01), Novak
patent: 4199207 (1980-04-01), Lee
patent: 5480318 (1996-01-01), Garrison
patent: 5582180 (1996-12-01), Manset et al.

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