Ladder stabilizing apparatus

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4519477
SERIAL NO

06551802

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

An adjustable stablizing device which is attached to an extension ladder having hollow rungs without requiring modification of the ladder structure or affecting normal operation of the ladder is described. The device has two stabilizing elements made of aluminum which are located at different side of the ladder. Each stabilizing element has an upper and a lower bracket which are connected together by two rigid pivotably-linked longitudinal members. The stabilizing elements are connected to each other by rods which extend through the hollow rungs of the ladder and which connect the upper and the lower brackets. The lower bracket and the lower longitudinal member are pivotably connected, and the upper bracket has a number of apertures spaced lengthwise of the ladder. By choosing the aperture to which the upper longitudinal member is connected, the attitude of each of the lower members is varied via the pivotable connection so as to lie on the surface adjacent the ladder side. When not in use, the stabilizing elements are retained flush against the sides of the ladder for storage.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
R P R DESIGNS INC 1315 FINCH AVENUE WEST SUITE 120 CITY OF NORTH YORK M3J 2G6 MUNICIPALITY OF METROPOLITAN TORONTO ONTARIO CANADA A CORP OF ONTARIO CANADANot Provided

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ralston, Robert 294 Silverstone Dr., Townhouse 71, Rexdale, Ontario, CA 3 79

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation