Ground fault receptacle with unitary support of GFCI module and switching mechanism
AssigneeGeneral Electric Company
InventorsKeith W. Klein, Joseph M. Palmieri
Life of this patent
Estimating the term…
Abstract
An electrical receptacle assembly affording ground fault protection includes a housing containing fixed contacts supported by socket connector subassemblies. A support plate mounts an electronics/magnetics module and operating mechanism sub-assembly including a pivotal, movable contact carrying arm, a latch, a reset button and a trip solenoid. The reset button positions the latch to detain the arm with the contacts in circuit completing relation. On a ground fault, the module effectuates energization of the solenoid to unlatch the arm which moves to separate the contacts.
Claims10
In an electrical receptacle having a base and cover, wherein at least one socket means is incorporated in the base and accessible through a front wall thereof for reception of an appliance cord plug, and wherein stationary contacts electrically connected to the socket means are mounted in the base, a ground fault circuit interrupter assembly comprising, in combination:
- A. a support plate having means for cooperating with the base in positionally mounting said plate in the base proximate its junction with the cover, said plate having a front surface for disposition in spaced, parallel relation to the front wall of the base and a rear surface;
- B. a ground fault circuit interrupter module including a differential current transformer having a wound toroidal core and a pair of conductor segments extending through the central aperture of said core, a circuit board, electronic components mounted on said board in electrical interconnection, and leads connected between said transformer and said circuit board;
- C. first means integrally formed with said plate in outstanding relation with its rear surface providing a cavity accommodating said transformer;
- D. second means integrally formed with said plate in outstanding relation with its rear surface supporting said board in spaced, parallel relation with said rear surface;
- E. a pair of spaced pedestals integrally formed with said plate in outstanding relation with its front surface;
- F. a mounting block secured on said pedestals;
- and
- G. a switch operating mechanism including an arm mounted by said block for movement between a closed circuit position and an open circuit position, movable contacts carried by said arm, leads connecting said movable contacts to said conductor segments, a latch detaining said arm in its closed circuit position, and a solenoid mounted by said block and electrically connected to said circuit board, said solenoid having a plunger arranged to engage said latch and release said arm for movement to its open circuit position;
- 1. whereby the receptacle is capable of being tested for operability in affording ground fault protection prior to positionally mounting said assembly in said base.
Dependencies are inferred from the claim text.