Land vehicles: dumping – Hopper type – Bottom opening
Patent
1992-01-15
1993-07-06
Huppert, Michael S.
Land vehicles: dumping
Hopper type
Bottom opening
248 27, 1052821, 105289, B65G 6530
Patent
active
052247619
ABSTRACT:
A bottom dump trailer having a trailer body for accepting and hauling load material having a front and rear walls, opposing and parallel side walls and a floor formed by front and rear doors is disclosed. The sides of the front and rear doors are slidably mounted on the side walls of the trailer body so that the doors can slide between the front and rear of the trailer body. In order to dump the load material, a hydraulic cylinder connected between the trailer frame and the rear door slides the rear door from the rear to the front of the trailer body, dumping the load material from the rear of the trailer body. The second hook end of a latch member pivotally attached to the front door hooks to a pin attached to the rear door thereby attaching the front door to the rear door so that the doors may slide in unison between the front and rear of the trailer body. The hydraulic cylinder slides the rear door and the attached front door to the rear of the trailer body, dumping the load material from the front of the trailer body. In order to close the front and rear doors, the hydraulic cylinder slides the rear door and the attached front door to the front of the trailer body where an air cylinder extends a piston rod which engages and rotates the first hook end of the latch member to hook a pin attached to the trailer frame while disengaging the second hook end from the rear door pin thereby preventing the front door from sliding with the rear door. The hydraulic cylinder then slides the rear door to the rear of the trailer body, closing the rear door.
REFERENCES:
patent: 2816797 (1957-12-01), Hanson
patent: 3347174 (1987-10-01), Floehr
patent: 3536013 (1970-10-01), Nagy
patent: 3712249 (1973-01-01), Nagy et al.
patent: 4024939 (1977-05-01), Grieshop et al.
A portion of a blueprint illustrating a bottom dump vehicle which was sold by Philippi-Hagenbuch, Inc.
Huppert Michael S.
Morse Gregory A.
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