Main tail locking device for a trailer

Details Main tail locking device for a trailer Main tail locking device for a trailer

1990-08-24

1992-03-10

Werner, Frank E.

Material or article handling

Self-loading or unloading vehicles

Conveyor

414480, 298 17B, 92 15, 92 28, B65G 6702

Patent

active

050945831

ABSTRACT:
A main tail lock for a hydraulic tail trailer comprising a pair of spaced-apart locks which are pivotally secured to the frame of the tail and which are pivoted between locked and unlocked positions by a lock cylinder. When the locks are in their unlocked position, the tail cylinders for the tail may raise or lower the tail of the trailer. When the locks are in their locked position, the tail cylinders are prevented from retracting thereby preventing the lowering of the tail with respect to the main frame of the trailer.

REFERENCES:
patent: 1705968 (1929-03-01), Eisenhut
patent: 3003472 (1961-10-01), Ferris et al.
patent: 3783976 (1974-01-01), Kerr
patent: 4318658 (1982-03-01), McIntyre
patent: 4352626 (1982-10-01), Frisbee et al.
patent: 4373851 (1983-02-01), Confoey
patent: 4568235 (1986-02-01), Bills, Jr.

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