Multiple motorized lifting devices mounted to a structure
US10280051B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2016 |
| Grant date | May 7, 2019 |
| Priority date | — |
| Expiry date | Apr 27, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66D2700/0191
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A system includes two or more lifting devices attached to a structure each lifting device having a drum rotated by a motor to draw in or let out a line from the drum. The drum includes a groove formed in an outer surface thereof to accommodate the line. In certain embodiments, each of the lifting devices are quickly and easily detachable from the structure by way of a flange and mounting bracket. The flange and mounting bracket have holes which are coaxially aligned. A pin or other fastener is used to join the flange and mounting bracket together. Two or more lifting devices may be connected to and moved along a mounting bracket.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.