Elevator and escalator tool
US8833516B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 23, 2014 |
| Grant date | Sep 16, 2014 |
| Priority date | — |
| Expiry date | May 23, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04F2011/0209
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A tool for use with elevators and escalators, having two or more slidably connected assemblies, is provided. The assemblies have rails connected together and arranged in a parallel orientation. Support members are connected to the rails and a plurality of treads is attached to the support members. The treads are configured to provide a working surface upon which personnel can stand, sit or kneel and upon which materials can be placed. An extension member is connected to one end of the rails. Each extension member includes a locking member and a stop. Each locking member includes a first arm, a second arm and a third arm. In an open position, the third arm is in contact with the stop and in a closed position, the second arm is in contact with the stop. The assemblies are configured to bridge gaps formed within and around the elevators and escalators.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.