Self-erecting material handling sling
US3934919A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 7, 1974 |
| Grant date | Jan 27, 1976 |
| Priority date | — |
| Expiry date | May 7, 1994 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66C1/18
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A material handling sling comprising a main elongated, flexible, securing member, fluid inflatable means integral with the main securing member and positioned intermediate the leading and terminal ends thereof. The sling may also include a secondary securing member that is attached to the main securing member at two points intermediate the ends of the inflatable means, one point being inward the end of the inflatable means nearest the leading end of the main securing member and the other point being inward the end of the inflatable means nearest the terminal end of the main securing member; the secondary securing member being adapted to provide a working length spanning the distance between the two points of attachment of the secondary securing member to the main securing member that is shorter than the length of the main securing member between said two points.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.