Method of lifting a load using a bag coupled to a lifting sling
US9365345B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 24, 2014 |
| Grant date | Jun 14, 2016 |
| Priority date | — |
| Expiry date | Nov 24, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49826
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A method of lifting a loaded bag with a coupled lifting sling. The bag has a top portion, a closed sidewall, a closed bottom portion, and an opening on the top portion. The method uses a lifting sling coupled to the bag, where the lifting sling is a series of straps that holds the bag. The bag has a series of strap retention devices attached near the bags top edge. The straps are movable vertically in the retention devices. The method includes the steps of loading the bag with a load to a load level, then lifting the lifting straps using a lifting device. The bag's surface above the load line slides down the coupled straps, as the straps are coupled but not attached to the bags above the load line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.