Tension holder for load lifting
US7735807B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 19, 2007 |
| Grant date | Jun 15, 2010 |
| Priority date | — |
| Expiry date | Apr 5, 2028 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04G3/32
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A rigging, operable to raise and lower the platform, passes through a restraint device comprising a tension holder. The tension holder comprises a first body having a substantially planar face surface and a rear portion having a divot disposed therein. A second body, substantially similar to the first body; and having a substantially planar face surface; is disposed in a substantially facing arrangement with the first body to permit a line to pass between the substantially planar face surfaces. A lever is disposed in the divot of the first body and is operable to draw together the substantially planar face of the first body and the substantially planar face of the second body whereby friction can be selectively applied to the line when the line is disposed between the substantially planar first surface and said substantially planar second surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.