Method for operating at least two lifting means in a group operation, and assembly comprising at least two lifting means
US10723595B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 21, 2016 |
| Grant date | Jul 28, 2020 |
| Priority date | — |
| Expiry date | Apr 8, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66C15/065
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A method and assembly for operating at least two lifting gears in a group operation, where each lifting gear has a hoist via which a respective cable or chain can be raised or lowered. The hoists are first operated in a synchronous operating mode to perform a common lifting procedure to move a load supported by the hoists. At least one of the hoists involved in the common lifting procedure is then deactivated to switch from the synchronous operation into an individual operation or a multi-operation, with at least one of the hoists remaining activated to carry out a lifting or lowering process relative to each deactivated hoist. A load value is then determined for the at least one deactivated hoist and compared to a predetermined threshold value of the at least one deactivated hoist.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.