# US 5,348,495 A · Electrical cord plug lock assembly

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- Number: US 5,348,495 A
- Document ID: US5348495A
- Status: Granted
- Kind: A
- Application number: 08/141,044
- Filed: 1993-10-26
- Granted: 1994-09-20
- Earliest claimed: 1993-10-26
- Inventors: Larry R. Kasden
- Web page: https://patentgrep.com/patent/US5348495A

## CPC

- H01R 13/6395: {for wall or panel outlets}
- H01R: ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS

## Abstract

An electrical cord plug lock assembly having a special electrical socket face plate with a pair of laterally spaced locking brackets extending outwardly from its front surface adjacent the opposite sides of the socket aperture. A base clamp member has a locking arm pivotally secured to its respective left and right ends. The front end of the locking arms have structure for detachably securing them to the respective locking brackets on the front of the electrical socket face plate. A top clamp member is detachably secured to the top surface of the base clamp member and it functions to grip an electrical cord there-between. The electrical plug lock assembly prevents accidental removal of the electrical plug from the electrical socket.

## Claims

### Claim 1

An electrical cord plug lock assembly comprising:
an elongated base clamp member having a top surface, a bottom surface, a left end and a right end;
a top clamp member having a top surface, a bottom surface, a left end and a right end;
means for detachably securing an electrical cord between the bottom surface of said top clamp member and the top surface of said base clamp member;
a pair of elongated locking arms each having a front end and a rear end;
means for pivotally securing the rear ends of said locking arms to the respective left and right ends of said base clamp member;
an electrical socket face plate having a front surface and at least one socket aperture; and
means for detachably securing the front ends of said locking arms to the front surface of said electrical socket face plate.

### Claim 2 (depends on 1)

An electrical cord plug lock assembly as recited in claim 1 wherein said means for detachably securing the front ends of said locking arms to the front surface of said electrical socket face plate comprises:
a pair of laterally spaced locking brackets that are mounted on the front surface of said electrical socket face plate, said locking brackets being located on the opposite sides of said socket aperture.

### Claim 3 (depends on 2)

An electrical cord plug lock assembly as recited in claim 2 wherein said locking brackets each have an outwardly extending wall that has a front end, a flange extends laterally from the front end from each of said walls.

### Claim 4 (depends on 3)

An electrical cord plug lock assembly as recited in claim 3 wherein each of said flanges has a front surface and a rear surface and each has a ridge extending from said rear surface toward the front surface of said electrical socket face plate.

### Claim 5 (depends on 1)

An electrical cord plug lock assembly as recited in claim 1 wherein said base clamp member has a pair of laterally spaced tower portions extending upwardly from its top surface adjacent its respective left and right ends, each of said tower portions has an arm recess that receives the rear end of said respective locking arms.

### Claim 6 (depends on 5)

An electrical cord plug lock assembly as recited in claim 5 wherein each of said tower portions have a vertically oriented keyway that face each other.

### Claim 7 (depends on 6)

An electrical cord plug lock assembly as recited in claim 6 wherein said top clamp member has a tongue extending from its left and right ends that are matingly received in the respective keyways of said tower portions.

### Claim 8 (depends on 7)

An electrical cord plug lock assembly as recited in claim 7 wherein said top clamp member has a concave bottom surface.