Roof retaining apparatus

Details Roof retaining apparatus Roof retaining apparatus

2005-02-22

2005-02-22

Yip, Winnie (Department: 3637)

Fire escape, ladder, or scaffold

Safety device, platform associated

Railing

C182S045000, C052S026000, C248S237000, C256S059000

Reexamination Certificate

active

06857504

ABSTRACT:
The apparatus comprises a framework having two angled arms, one flat portion of each arm adapted to be fixed to a rooftop. An upright extends upwardly from each arm and top and bottom cross members extend between and are fixed to the arms. Multiple arms, uprights and cross members are joinable together to accommodate a rooftop of any lateral extent. A net extends across the area defined by and between the uprights and cross members. Also, the arms include brace structure adapted for engaging scaffolding thereacross.

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patent: 4805735 (1989-02-01), Anderson
patent: 5515941 (1996-05-01), Palmer et al.
patent: 5779227 (1998-07-01), Elkins et al.
patent: 6003629 (1999-12-01), Cloutier et al.
patent: 6053281 (2000-04-01), Murray
patent: 6220390 (2001-04-01), Pike
patent: 2113285 (1983-08-01), None
patent: 2157755 (1985-10-01), None

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