Control mechanism for covers to large containers
US6402224B1 · kind B1 · utility
25Cited by
12References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2000 |
| Grant date | Jun 11, 2002 |
| Priority date | — |
| Expiry date | Aug 21, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D88/126
- WIPO fieldHandling
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.