The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 19, 1994
Filed:
Nov. 23, 1992
Applicant:
Inventor:
John Welch, South Windsor, CT (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01R / ;
U.S. Cl.
CPC ...
439106 ; 361 45 ;
Abstract
A ground fault interruptor (GFI) electrical connector receptacle device for use with a twist-lock, multi-prong plug has passages in the face plate in registration with electrical contact blades coupled to a GFI circuit to disconnect the blades upon detection of a ground fault. The configuration and shape of the passages through the face plate accept the twist-lock plug so that the foot of the L-shaped grounding prong of the plug is brought into engagement with the rear surface of the housing face plate when the plug is rotated to restrain the plug from axial removal.