Ladder stabilizer

Details Ladder stabilizer Ladder stabilizer

2005-02-08

2005-02-08

Thompson, II, Hugh B. (Department: 3634)

Fire escape, ladder, or scaffold

Safety device for ground-supported ladder

C182S214000, C182S129000, C248S210000

Reexamination Certificate

active

06851518

ABSTRACT:
A ladder stabilizer adapted to attach to an upper end or lower end of an extension ladder includes a mounting plate connecting to a rung of the extension ladder by secure U-bolts, the mounting plate attached to a slide bar mounting bracket having a transverse channel with a tightening screw providing a force within the channel to lock and hold a pair of extendable service arms within the transverse channel to provide additional wide and secure lateral stabilization of the extension ladder either at the top of the extension ladder, where the extension ladder rests against a wall or roof, or at the bottom of the extension ladder where the extension ladder meets the ground.

REFERENCES:
patent: 4061203 (1977-12-01), Spencer et al.
patent: 4502566 (1985-03-01), Wing
patent: 5010979 (1991-04-01), Shreve, III
patent: 5113973 (1992-05-01), Southern
patent: 5121814 (1992-06-01), Southern
patent: 5242031 (1993-09-01), Ashley
patent: D366319 (1996-01-01), Sheftel
patent: D406652 (1999-03-01), Marchand
patent: 6250424 (2001-06-01), Laug
patent: 6394229 (2002-05-01), Hastreiter
patent: 6408983 (2002-06-01), Widurski
patent: 6691825 (2004-02-01), Haig

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