Trailer unloading apparatus and method

Details Trailer unloading apparatus and method Trailer unloading apparatus and method

1983-05-18

1985-09-17

Spar, Robert J.

Material or article handling

Plural, static structures for supporting discrete loads and...

Load-underlying members

220461, 222 95, 222104, 414304, 414539, 414786, B65G 6530, B65G 6724

Patent

active

045417652

ABSTRACT:
Apparatus and method for unloading bulk material (M) from a rectangular trailer (10') comprising a collapsible rectangular liner (29) having a collapsible funnel-shaped base (31), said liner being hung extended in said container with said base (31) collapsed and its discharge opening (32) inserted in a bottom discharge opening (33) in the trailer (10'), and a cable and winch (44,47) to lift the liner (29) to extend the base (31) for gravity discharge of the bulk material (M) through said bottom discharge opening (33).

REFERENCES:
patent: 172228 (1876-01-01), White
patent: 2792262 (1957-05-01), Hawthorn
patent: 2923423 (1960-02-01), Maney
patent: 2931523 (1960-04-01), Nelligan
patent: 3139998 (1964-07-01), Seaman
patent: 3433400 (1969-03-01), Hawkins
patent: 3756469 (1973-09-01), Clark et al.
patent: 4277220 (1981-07-01), Wiley
patent: 4449646 (1984-05-01), Bonerb et al.
patent: 4453875 (1984-06-01), Johnson, Sr.

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