Material or article handling – Load-transporting type vehicle and external means... – Involving movement of load by gravity from wheeled vehicle
Patent
1990-07-05
1992-01-14
Spar, Robert J.
Material or article handling
Load-transporting type vehicle and external means...
Involving movement of load by gravity from wheeled vehicle
298 7, 298 17SG, 414368, 414386, 414471, 414481, 414577, 414582, 414786, B65G 6730
Patent
active
050805487
ABSTRACT:
A portable low-profile tipper for dumping the contents from a trailer containing a dumpable material, includes a towable elongated frame having a back end with a deck pivotally attached thereto. The deck has a backstop for positioning the trailer during dumping. Actuators raise and lower the deck between a lowered position adjacent the frame and a raised position for dumping the trailer contents. The tipper includes a chute having fixed and pivoting components which cooperate to guide the dumpable material from a back opening of the trailer past the frame back end. The tipper frame has outwardly extending front and back stabilizers. The front stabilizers lift and lower a front end of the frame between a low-profile dumping position for receiving the trailer and a raised towing position for hitching and towing the tipper between dumping locations. A method of successively removing the contents from a plurality of trailers using the tipper is also provided.
REFERENCES:
patent: 516053 (1894-03-01), Hulett
patent: 577500 (1897-02-01), Wilson
patent: 1759757 (1930-05-01), Patten et al.
patent: 3819070 (1974-06-01), Clarke et al.
patent: 4483650 (1984-11-01), Sims
One Drawing Sheet Showing the Earlier Known Trailer Tipper which is Discussed in the Background Portion of the Specification on pp. 1-3 of the Application.
Bratlie Kenneth A.
Miller David J.
Columbia Trailer Co., Inc.
Krizek Janice
Spar Robert J.
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