Double pulley device for use for zip-line traversing on a rope or cable
US6810818B2 · kind B2 · utility
28Cited by
12References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 17, 2003 |
| Grant date | Nov 2, 2004 |
| Priority date | — |
| Expiry date | Jun 17, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T24/3492
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A double pulley device which has a pair of sheaves arranged in line inside a reverse U-shaped metal support flange-plate, each sheave being mounted rotating free on a fixed spindle of the flange-plate. At least one orifice for the passage of a snap-hook, is situated between the two spindles of the sheaves, so that the fixing point of the snap-hook is positioned above the point of contact of the sheaves with the cable. One of the wings of the flange-plate is arranged to enable the mobile finger of the snap-hook to be opened when the double pulley device is fitted onto the cable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.