Retractable counterweight for straight-boom aerial work platform
US6341665B1 · kind B1 · utility
26Cited by
82References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 13, 1999 |
| Grant date | Jan 29, 2002 |
| Priority date | — |
| Expiry date | Sep 13, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66F11/046
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An aerial work platform apparatus includes a shiftable counterweight which shifts in response to movement of the boom in order to maintain optimum balance of the apparatus during movement of the boom and platform. The counterweight shifts towards and away from the front of the apparatus, and also in a vertical direction. Several constructions for shifting the counterweight are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.