Fused electrical plug

Details Fused electrical plug Fused electrical plug

1977-02-15

1979-12-11

Desmond, E. F.

Geometrical instruments

337196, 337198, 337211, H01H 8512, H01H 8522, H01R 1368

Patent

active

041780612

ABSTRACT:
A fused electrical plug including a plug body having a pair of forwardly projecting conductor prongs for insertion into a socket. A pair of conductors entering the plug are connected to respective conductor prongs through fuses which are removable by opening an access door on a lateral face of the plug body. A locking plate slides along the prongs of the plug and locks the access door in its closed position when the locking plate abuts the forward end of the plug body. In a first and second embodiment the access door includes an access cover extending between two parallel side walls. The inside face of the access cover contains a pair of inwardly projecting fuse holders which insert the fuses in their proper position inside the fuse body when the access door is closed. In the first embodiment the access door pivots away from the plug body about a transverse edge of the access cover, while in a second embodiment the access door slides away from the plug body in a lateral direction. In the first and second embodiments a pair of retaining fingers project rearwardly from opposite sides of the locking plate. The retaining fingers are inserted in respective slots in the side walls of the access door to lock the door in its closed position when the locking plate abuts the front face of the plug body. In a third embodiment the access door includes an access cover which is slidably secured to the plug body. The access cover is opened by sliding it forwardly along the lateral face of the plug body. When the locking plate abuts the front face of the plug body, the front edge of the access cover contacts the locking plate thereby locking the access door in its closed position.

REFERENCES:
patent: 1902568 (1933-03-01), Maxam
patent: 1904691 (1933-04-01), Magee
patent: 2640125 (1953-05-01), Eggers
patent: 3976967 (1976-08-01), Magherini

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