Lamp socket

Details Lamp socket Lamp socket

2005-07-05

2005-07-05

Nguyen, Truc (Department: 2833)

Electrical connectors

With vitreous-type envelope

Connector of the type having only concentric annular...

C439S280000, C439S587000, C439S283000

Reexamination Certificate

active

06913491

ABSTRACT:
There is disclosed a porcelain lamp socket for use in a humid environment where the socket has a body, a screw shell, a center contact and two terminals; one for the line and the other for the neutral wire connection. The screw shell and the line and neutral terminals are attached to the porcelain body by means of fasteners such as eyelets, rivets, screws, etc. All electrical conductors in the bottom of the socket, including the fasteners are covered with a spacer which forms a watertight seal with the bottom surface of the body. The spacer, which can be made of high dielectric plastic material, can be mechanically held in place by projections which fit snuggly within the eyelets or rivets. RTV, either by itself or in combination with soft fillers such as washers can also be used to obtain a water tight seal. The device disclosed finds utility in applications where superior dielectric strength is desired between the live parts on or in the socket and the sheet metal (ground) to which the socket is mounted.

REFERENCES:
patent: 773725 (1904-11-01), Fielding
patent: 3775634 (1973-11-01), Hasell et al.
patent: 5511989 (1996-04-01), Cheng et al.
patent: 5874800 (1999-02-01), Newman
patent: 5967823 (1999-10-01), Tsui

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