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1. (WO2011140421) APPARATUS FOR FORMING TEMPORARY GUARDRAILS ON STAIRS

Pub. No.:    WO/2011/140421    International Application No.:    PCT/US2011/035479
Publication Date: Nov 10, 2011 International Filing Date: May 6, 2011
IPC: E04H 17/14
Applicants: SAFETY MAKER, INC
GUTIERREZ, Miguel, Osvaldo
Inventors: GUTIERREZ, Miguel, Osvaldo
Title: APPARATUS FOR FORMING TEMPORARY GUARDRAILS ON STAIRS
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.