Lanyard with pole gripping means
US5222991A · kind A · utility
Inventor
Key dates
| Filing date | Apr 13, 1992 |
| Grant date | Jun 29, 1993 |
| Priority date | — |
| Expiry date | Apr 13, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B27/00
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A fall arrest lanyard for use by a worker at an elevated position on a pole, e.g., a telephone pole. The lanyard comprises a flexible strap and a pair of gripping units. The strap is arranged to be releasably connected to the worker to form a loop encircling the pole. Each of the gripping units comprises an elongated, rigid or semi-rigid tubular member having a handgrip at one end, and a first pole penetrating head adjacent the handgrip. In one embodiment, a second pole penetrating head is located at the other end of the tubular member. The strap extends through both tubular members. Each of the penetrating heads has a plurality of larger upper teeth and a plurality of small lower teeth. Each tooth has a horizontally disposed cutting edge. The gripping units are arranged to be manipulated by the worker grasping the handgrips to cause the cutting edges of the teeth to penetrate into the material of the pole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.