Dock levelers and associated systems and methods
US8407842B2 · kind B2 · utility
27Cited by
50References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 24, 2010 |
| Grant date | Apr 2, 2013 |
| Priority date | — |
| Expiry date | Feb 17, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65G69/2841
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Dock levelers, such as mechanical dock levelers, are described herein. In one embodiment, a mechanical dock leveler includes a ramp having a lip pivotally attached to a forward edge. A ramp lifting system is configured to assist upward rotation of the ramp as it is manually raised. In this embodiment, a lip lifting system is operably coupled to the ramp lifting system so that the ramp is initially “downward biased” prior to being raised, and then becomes at least partially supported in a raised position by the lip lifting mechanism, once the lip lifting mechanism is engaged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.