Gladhand security lock apparatus

Details Gladhand security lock apparatus Gladhand security lock apparatus

1993-12-27

1995-05-02

Gall, Lloyd A.

Locks

Portable

70 57, 70163, 70168, 70237, 70416, 138 89, 280420, 285 80, B60R 2500

Patent

active

054108942

ABSTRACT:
An improved gladhand security lock apparatus is locked to a gladhand brake line coupler to immobilize a trailer. The body of the security lock apparatus is formed with an abutment surface from which depends a clevis wall and a retainer turned back from the clevis wall and spaced from the abutment surface forming a tongue receiving bight. A guard plate is formed on an end of the body and a clip with an upturned rail member is formed parallel to the guard plate and spaced therefrom. The security lock apparatus is attached to the gladhand coupler so that a tongue of the gladhand is received in the tongue receiving bight, the abutment surface of the security lock apparatus overlies a port of the gladhand coupler, and a retainer flange formed on the gladhand coupler is received between the guard plate and the clip. The security lock apparatus body comprises a barrel. A lock housing is formed in a bore in the barrel perpendicular to and confronting a keeper bolt positioned in a keeper bolt receiving bore. A lock cylinder in the lock housing is operative to drive the keeper bolt across the tongue receiving bight from an opening in the abutment surface to engage the retainer. In operation, the tongue of the gladhand coupler is inserted in the tongue receiving bight and a user drives and locks the keeper bolt against the retainer thereby locking the tongue of the gladhand into the security lock apparatus.

REFERENCES:
patent: 1125791 (1915-01-01), Aston
patent: 1619464 (1957-03-01), Eichhorn
patent: 3052489 (1965-09-01), Stoudt
patent: 3269159 (1966-08-01), Young
patent: 3892431 (1975-07-01), Booth
patent: 4226103 (1980-10-01), Strickland
patent: 4325237 (1982-04-01), Menzie
patent: 4362035 (1982-12-01), Vitale
patent: 4693096 (1987-09-01), Mercer
patent: 4747623 (1988-05-01), Newcomb et al.
patent: 5129243 (1992-07-01), Kassebaum

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