Ladder stabilizer

Details Ladder stabilizer Ladder stabilizer

1988-12-05

1990-02-13

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Ladder with pivoted prop

Lateral prop

182111, 2483541, E06C 536, E06C 122

Patent

active

048998494

ABSTRACT:
Stabilizer apparatus for attachment to an extension ladder for inhibiting sideways tipping and downward/rearward slipping thereof. Attached to the opposed side rails of the ladder proximate the upper end of the lowermost section are hinge blocks for pivotally joining a pair of tubular, telescoping, extensible legs to the ladder. The hinge brackets are specially designed to permit the tubular legs to be swung parallel to and directly adjacent with the ladder's side rails when the ladder is to be stowed and which the legs to be rotated laterally outward and forward of the base of the ladder during use. An articulated brace extends between the pair of legs and their associated ladder side rails to limit the extent to which the legs may be splayed relative to the ladder.

REFERENCES:
patent: 46105 (1865-01-01), Hayes
patent: 485900 (1892-11-01), Tannenberg
patent: 1135763 (1915-04-01), Caronia
patent: 1235696 (1917-08-01), Keith
patent: 1526654 (1925-02-01), Yordy
patent: 1910551 (1933-05-01), Kruse
patent: 2149781 (1939-03-01), Leiser
patent: 2997127 (1961-08-01), Wojtowicz
patent: 3878917 (1975-04-01), McBride
patent: 3901354 (1975-08-01), Grebausky
patent: 4433754 (1984-02-01), Beach

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