Load lifting sling and textile webbing for producing the sling
US4834439A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 20, 1987 |
| Grant date | May 30, 1989 |
| Priority date | — |
| Expiry date | Nov 20, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/15
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A strap for the production of load lifting slings equipped with lifting loops and tie loops arranged parallel thereto is composed of a webbing fabric. In a width region arranged at a distance from both side edges of the strap, in which a cut is to be made in the longitudinal direction of the webbing through the transverse bond, the warp yarns of the webbing fabric are formed of textile yarns (meltable yarns) of a synthetic material whose melting temperature is lower than the melting temperature of the warp yarns in at least the width region of the strap forming the lifting loop. The cut to produce the tie loop is made by a hot cut under the influence of heat in such a manner that only the meltable yarns melt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.