Abstract: A control linkage system for opening and closing a door at least partially covering an opening to a large container such as a transfer trailer. The linkage system maintains constant control over the door during rotation, using mechanical linkage providing increased rotational motion and enhanced mechanical advantage. The linkage system employs hydraulic cylinders pivotally attached to the side wall of the container. The linkage system alse employs a curved link joined to a straight link in the same plane as the mechanical linkage.
Type:
Grant
Filed:
August 21, 2000
Date of Patent:
June 11, 2002
Assignee:
Galion Solid Waste Equipment Company Inc.
Inventors:
Timothy A. Monaco, Christoph L. Gillum, Timothy L. Duell