Lockout device for trailer brake actuator

Details Lockout device for trailer brake actuator Lockout device for trailer brake actuator

1996-04-03

1998-06-30

Graham, Matthew C.

Brakes

Operators

Automatic

188345, B60T 720

Patent

active

057719969

ABSTRACT:
A lockout device for selectively locking out the trailer brake actuator on a hitching device to allow for backing. The lockout device works on a hitching device having an inner housing connected to a pulling vehicle and an outer housing connected to a trailer. A brake actuator to activate the trailer brakes is connected between the inner housing and the outer housing. During towing, the actuator will activate the trailer brakes if the trailer approaches the pulling vehicle, as for example when the pulling vehicle slows and the trailer's inertia carries it towards the pulling vehicle. When the lockout device is in a lockout orientation, the lockout device prevents the inner housing from sliding rearward in the outer housing, thereby preventing the actuator from activating the trailer brakes. Upon an initial movement forward by the pulling vehicle, the lockout device will return to a neutral position so that the actuator is functional.

REFERENCES:
patent: 3783982 (1974-01-01), Wells
patent: 3881577 (1975-05-01), Wherry et al.
patent: 4239252 (1980-12-01), Huetsch et al.
patent: 5013159 (1991-05-01), Goettker
patent: 5484900 (1996-01-01), Denny
patent: 5492204 (1996-02-01), Wallace

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