Counterweight assisted winch
US7264228B2 · kind B2 · utility
2Cited by
10References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2005 |
| Grant date | Sep 4, 2007 |
| Priority date | — |
| Expiry date | Sep 9, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66D1/7405
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The invention is a motorized winch which can be retrofitted into existing manually operated systems that use counterbalancing weights. The counterbalancing weight will be fixed at 50% of the maximum capacity of the set. The winch is rated at 50% of the maximum capacity of the set. By using the winch in a closed loop configuration, it will operate the set at any load from 0 to 100% of its rated capacity, without the need to ever adjust the counterbalancing weights.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.