Dock leveler
US4928340A · kind A · utility
22Cited by
8References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 24, 1989 |
| Grant date | May 29, 1990 |
| Priority date | — |
| Expiry date | Feb 24, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65G69/287
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A dock leveler having a rigid flat deck and a rigid hinge pin coupling the leveler to a loading dock or leveler frame element. The deck is supported by a series of spaced box beams, each one split longitudinally to provide the necessary torsional flexibility to allow a rigid hinge pin. The use of a box beam geometry still serves to provide the required load support for the deck.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.