Truck-trailer antitheft locking system

Details Truck-trailer antitheft locking system Truck-trailer antitheft locking system

1984-07-02

1986-09-30

Bennett, Henry

Land vehicles

Wheeled

Articulated vehicle

280428, B60D 110

Patent

active

046143572

ABSTRACT:
When the air brake line on a semi-trailer is disconnected, a plunger is thrust down through the semi-trailer bottom plate to obstruct access to the semi-trailer hitch pin. Reconnection of the air brake line withdraws the plunger.

REFERENCES:
patent: 4325237 (1982-04-01), Menzie

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