Apparatus for forming temporary guardrails on stairs
US9598870B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 26, 2016 |
| Grant date | Mar 21, 2017 |
| Priority date | — |
| Expiry date | Jul 26, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04F2011/1885
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An apparatus for use in erecting a temporary guardrail on a stair, having a stair stringer. The apparatus has an elongated stanchion. A first jaw assembly is operatively attached to the stanchion for engaging one side of the stringer, proximal the bottom edge thereof, and includes a first compression assembly to operatively urge the stanchion against the stringer. A second axially spaced, jaw assembly is operatively attached to the stanchion for engaging the one side of the stringer proximal a top edge thereof, and includes a second compression assembly to urge the stanchion against the stringer, and a bracket attached to the stanchion, and being adapted to receive a temporary guardrail member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.