Lift assembly having a split trolley
US9738499B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2012 |
| Grant date | Aug 22, 2017 |
| Priority date | — |
| Expiry date | Apr 27, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63G11/00
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A trolley for a lift assembly is disclosed. The trolley includes a drive portion and a lift portion separable from the drive portion. The lift portion includes one or more fittings configured to hold one or more wire ropes for raising and lower a platform hitched to the wire ropes. The drive portion is connectable to a drive assembly to move the drive portion and lift portion along a lift stroke. Pairs of trolleys are interconnected via tension lines or wires connected to the lift portions of the trolleys. The lift portions are configured to move independent of the drive portions through lift provided via the interconnection of the lift portions through the tension lines or wires.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.