Fire escape – ladder – or scaffold – Ladder – Supporting surface compensating means
Reexamination Certificate
2000-04-17
2001-09-25
Stodola, Daniel P. (Department: 3634)
Fire escape, ladder, or scaffold
Ladder
Supporting surface compensating means
C182S200000, C248S188200
Reexamination Certificate
active
06293367
ABSTRACT:
REFERENCES TO PRIOR OR PARENT APPLICATIONS
There are no prior or parent applications to which the instant application relates.
FEDERALLY SPONSORED RESEARCH AND DEVELOPMENT
There is no federally sponsored research and development to which the instant application relates.
BACKGROUND OF THE INVENTION
1. Field of the Invention
The instant invention relates to those devices serving to facilitate ladder leveling on hilly terrain.
2. Related Art
The contemporaneously filed Informational Statement refers to art which however does not anticipate the instant invention.
A SUMMARY OF THE INVENTION
1. A Brief Description of the Invention
The instant invention is an extension ladder with ladder leveling apparatus consisting of an elongated stabilizing strut affixed to one leg of the extension ladder with a laterally extending footing component affixed to the base of the strut. The footing component flares outwardly both anteriorly and posteriorly in order to allow for space affordable to the base of one side of a ladder unit to thereby render it amenable to positioning anywhere at or above the lowest point of laterally sloping ground below the location of the ladder unit A pivotable foot unit is affixed to the footing component and is itself equipped with a base stabilizing pod. The strut is characterized by the presence of evenly spaced laterally extending teeth found beginning at about the highest point of the strut and extending down to where the footing component is affixed thereto. A pair of equivalently shaped grip components each with a smooth lateral side have medially extending teeth all amenable to fitting within spacing between the teeth of the strut. Each grip component has a pair of collinear through holes amenable to receipt of the threaded ends of a thresided dual bolt component. A pair of threaded turning nuts are fastened each over a washer unit in respect of each grip component serving to tighten the strut to one side of a ladder unit and to each grip component to thereby provide a modified elongated side of a ladder unit located over laterally sloping ground.
2. Object of the Invention
An object of the invention is to provide a sturdy, economical and easy to assemble means for leveling either side of an extension ladder unit located over laterally sloping ground. Other ladders with leveling devices meant to serve such a function are inherently either not as sturdy or a goodly amount more expensive and/or more complicated to assemble and disassemble from a ladder unit. Moreover, it is imperative that such devices be readily removable from one leg of an extension ladder to the other, since, extension ladders cannot be turned around and utilized in a turned around position as can non-extension ladders. The invention facilitates such leveling over such ground without regards to the manner of lay of sloping regarding use of extension ladders. Respectfully submitted, the feature of the invention smW to permits its ready assembly to either side of a ladder unit concomitant with its sturdiness and economical character as well render it indeed new, useful and unique.
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Stodola Daniel P.
Thompson Hugh B.
Welch Jr., Esq. John J.
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