Graduated pole strap

Details Graduated pole strap Graduated pole strap

2008-05-06

2008-05-06

Chin-Shue, Alvin (Department: 3634)

Fire escape, ladder, or scaffold

Wall- or floor-attached

Ladder

C182S107000, C182S129000

Reexamination Certificate

active

07367425

ABSTRACT:
The graduated pole strap apparatus can be wrapped around a pole, tree or the like and secured on each end to the rails of a ladder. Further, it contains markings calibrated in proportion to the length of the ladder to show whether the ladder is secured at a safe inclination. For an extension ladder, the markings are calibrated based on the rung on which the fly-lock mechanism is locked on the face of the ladder of a particular length.

REFERENCES:
patent: 376558 (1888-01-01), Stahl
patent: 4545460 (1985-10-01), Byrd
patent: 4792016 (1988-12-01), Ingalsbe et al.
patent: 4920659 (1990-05-01), Becher
patent: 5067588 (1991-11-01), Bendickson
patent: 6494014 (2002-12-01), Lafrance
http://www.dicketool.com/Products/Laddermate/Laddermate—PDF/LM100—ProceduresW.pdf; Laddermate™ (LM100) Ladder Stabilizing Strap, produced by Dicke Safety Products, printed Jan. 25, 2005; 3 pages; known by others prior to Dec. 3, 2004.
http://www.dicketool.com/Products/Laddermate/Laddermate.htm; Laddermate™ Ladder Stabilizing Strap Model No. LM100, produced by Dicke Safety Products, Copyright © 2002, printed Jan. 26, 2005; 3 pages.

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