Enhanced safety cage apparatus for work areas on top of rolling stock such as rail tank cars
US10724256B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2018 |
| Grant date | Jul 28, 2020 |
| Priority date | — |
| Expiry date | Sep 13, 2038 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04G2003/283
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A cage for surrounding a section of a work area of the top of rolling stock includes an inboard side, an outboard side, a front end section and a back end section. The inboard side of the cage is attached to an associated deployment apparatus. Each of the two sides can define a pair of fence notches to slide over the rails surrounding the work area. Each of the two end sections can define an inboard notch and a center notch. Some embodiments of the end sections can define an outboard notch that includes a self-adjusting straddle. The cage can be provided as part of a portable fall protection device that includes a telescoping positioning mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.