Lifting sling
US4572562A · kind A · utility
2Cited by
2References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 12, 1985 |
| Grant date | Feb 25, 1986 |
| Priority date | — |
| Expiry date | Apr 12, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66C1/66
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An arcuate channel member has a detachable connection at mid length with an object to be lifted. The channel member provides a guide track for sliding movement of the lower portion of a flexible cable sling loop, the upper portion of which is lifted by a hook or grapple or the like. By sliding the loop in this guide track from time to time the lifting hook or grapple does not sharply bend the sling loop at the same point in every lifting operation, thereby greatly prolonging the life of the sling loop.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.