Overhead door for a container having a vertical opening such as

Details Overhead door for a container having a vertical opening such as Overhead door for a container having a vertical opening such as

1972-10-17

1976-01-27

Gilliam, Paul R.

Flexible or portable closure, partition, or panel

Plural strip, slat, or panel type

With mounting or supporting means

49358, 160190, E05F 1100

Patent

active

039346358

ABSTRACT:
An overhead door for the vertical opening of a truck trailer comprises a plurality of panels connected together by hinges, which extend the width of the panels and are confined within the panel. The panels, which are preferably formed of plastic, are counterbalanced by a spring, which is movable with the panels. The spring is wound by gears, which are connected thereto, cooperating with racks on the horizontal portions of the tracks on which the panels are movably supported. The bottom panel is locked to the trailer body by a locking mechanism, which is carried by the lowermost panel and cooperates with locking pins on the mounting angles on which the vertical portions of the tracks are supported.

REFERENCES:
patent: 2015402 (1935-09-01), Johanson
patent: 2703236 (1955-03-01), Verdier
patent: 2978021 (1961-04-01), Stroup et al.
patent: 3110512 (1963-11-01), Scalf et al.
patent: 3311159 (1967-03-01), Stansberry
patent: 3436862 (1969-04-01), Stansberry

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