Tandem trailer

Land vehicles – Wheeled – Articulated vehicle

Patent

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Details

280407, 280 80B, 296146, B60D 114

Patent

active

045574979

ABSTRACT:
A trailer system comprising a lead trailer van and a pup trailer van adapted to be pulled by a tractor secured to the forward end of the lead trailer employs a lead trailer with an overhead sliding rear door and a pup trailer with a conventional door at its rear end and an overhead sliding door at its nose end. The coupling between the trailers is adjustable in effective length so that when it is in its extended position the vans may be trailed in a normal manner and may articulate relative to one another and when in its retracted position, assumed during loading, the rear end of the lead trailer and forward end of the pup trailer directly abut one another. In this position the overhead doors may be opened to form a continuous passageway through the two trailers for the purpose of loading and unloading.

REFERENCES:
patent: 3104910 (1963-09-01), Kappen
patent: 3244434 (1966-04-01), Reed et al.
patent: 3246912 (1966-04-01), Cunha
patent: 3727945 (1973-04-01), Parker
patent: 3987919 (1976-10-01), Weeks et al.
patent: 4030171 (1977-06-01), Arguin
patent: 4230335 (1980-10-01), Glassmeyer
patent: 4273347 (1981-06-01), Hulse
patent: 4303258 (1981-12-01), Davis
patent: 4379585 (1983-04-01), Strick

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