Emergency arrest device for zip line
US10730535B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jan 31, 2019 |
| Grant date | Aug 4, 2020 |
| Priority date | — |
| Expiry date | Jan 31, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D63/008
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An emergency arrest device for a zip line is disclosed. The emergency arrest device is designed to tension and control a slide-and-grip knot, such as a Prusik knot, that is tied on the zip line. The device includes a mirror-image set of sidewalls, a front endwall connected between the pair of sidewalls at a front end of the device, and a rear endwall connected at a rear end of the device. The front and rear endwalls have openings sized to permit passage of the zip line therethrough. A tail fixation assembly including a clamp is mounted in the rear of the device. A knot-body control assembly is mounted in the front of the device. The knot-body control assembly includes arms that are resiliently biased to push the body of the slide-and-grip knot rearwardly when the device is impacted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.