Static structures (e.g. – buildings) – Including component designed to receive a disparate article... – On or adjacent portal frame; e.g. – window cleaners hook
Patent
1996-12-24
1998-11-03
Kent, Christopher
Static structures (e.g., buildings)
Including component designed to receive a disparate article...
On or adjacent portal frame; e.g., window cleaners hook
527411, 182 45, 248237, E04G 308
Patent
active
058292039
ABSTRACT:
A bracket for use in attaching a safety fall arrest system to a roof having rafters. Each rafter has an upper surface comprising a central portion extending along the length of the rafter and two edge margins on opposite sides of the central portion. The central portion defines a fastening zone into which one or more fasteners may be driven to attach the bracket to the roof. Each edge margin defines a non-fastening zone into which one or more fasteners should not be driven. Each non-fastening zone has a relatively narrow width in a direction transverse to the upper surface of the rafter. The bracket has at least one fastening hole for receiving the fastener for fixedly attaching the bracket to one of the rafters, and at least two pilot holes located on opposite sides of the fastening hole. The pilot holes are sized for receiving locating members and positioned such that the locating members can be inserted into the pilot holes without contacting the rafter when the bracket is placed on the upper surface of the rafter with the fastening hole positioned over the fastening zone of the rafter.
REFERENCES:
patent: 4141182 (1979-02-01), McMullen
patent: 4249713 (1981-02-01), Glynn et al.
patent: 4830341 (1989-05-01), Arteau et al.
patent: 4946123 (1990-08-01), Albert
patent: 5287944 (1994-02-01), Woodyard
patent: 5361558 (1994-11-01), Thornton et al.
DBI/SALA Canada, Inc., "User Instruction Manual for L3672 Roof Anchor," 1993, pp. 1-6.
Qual-Craft, "Instructions for Model #5100 Roof Edge and #5200 Roof Peak Anchors," 1994, p. 1.
DBI/SALA, "L3670 & L3671 Roof Anchors," undated, pp. 1-4, admitted prior art.
Swing Stage Supply, Inc., Roofmaster Products Co., "For carpenters--the roof decking can be put on and the FALLSTOP.TM. bracket left for the roofers," undated, p. 1, admitted prior art.
Kang Timothy B.
Kent Christopher
LandOfFree
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