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US5908085A Expired / Lapsed US ⏱️ 0.0 years remaining

Ladder leveling accessory system

Assignee: Individual
•
Filing: 1998-07-23
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Granted: 1999-06-01
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Expires: 2018-07-23
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Abstract

Abstract A ladder leveling accessory system for leveling a ladder on sloped, uneven, or rough surfaces includes a pair of leg extensions held to the rails of the ladder by two sets of bands coupled to the rails of the ladder. The leg extensions are secured in place by a spring loaded handle extending through both leg extensions, the upper bands and the rails of the ladder. In a preferred embodiment, each leg extension includes a pivoting foot having a gripping portion for facilitating secure placement of the foot on a surface.

Inventors

  • 👤 W. David Lovelady

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-22 20:07
CPC Classifications
E; E06; E06C; E06C7/00; E06C7/42; E06C7/44

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 611 words
A ladder leveling system, comprising: a ladder having a first and a second rail, a bottom rung extending between said first rail and said second rail, a top rung extending between said first rail and said second rail, and a plurality of intermediate rungs, each of said plurality of intermediate rungs extending between said first rail and said second rail; wherein said first rail and said second rail each include a hole therethrough, each hole being positioned between said bottom rung and a lowermost end of each respective rail of said ladder; a pair of first rail handle bands, each first rail handle band being coupled to a said first rail of said ladder, said pair of first rail handle bands having an upper handle band having a hole aligned with the hole in said first rail; a pair of second rail handle bands, each second rail handle band being coupled to a said second rail of said ladder, said pair of second rail handle bands having an upper handle band having a hole aligned with the hole in said second rail; a first leg extension, said first leg extension being insertable through said pair of first rail handle bands against said first rail such that said first leg extension is held against said first rail, said first leg extension being structured to include a first leg aperture aligned with said first rail hole; a second leg extension having a plurality of spaced second leg apertures therethrough, said second leg extension being insertable through said pair of second rail handle bands against said second rail such that said second leg extension is held against said second rail, said plurality of second leg apertures being substantially aligned through a central longitudinal axis of the second leg extension; a spring-loaded locking member having a spring, a lock base and a spring handle, said lock base and said spring handle being insertable through said spring, said lock base further being insertable into a first end of said spring handle; said lock base having a lock base spring stop and said spring handle having a spring handle spring stop such that said lock base spring stop and said spring handle spring stop abut opposing ends of said spring when said lock base and said spring handle are inserted through said spring; said spring handle having a distal end opposite said spring handle spring stop, said spring handle further having a lip proximate said distal end, said lip being for abutting said upper handle band fixed to said first rail of said ladder such that said distal end of said spring handle extends through said upper handle band, said hole in said first rail and said aperture in said first leg extension; said lock base having a distal end opposite said lock base spring stop, said lock base further having a lip proximate said distal end, said lip being for abutting said upper handle band fixed to said second rail of said ladder such that said distal end of said lock base extends through said upper handle band, said hole in said second rail and a selectable one of said apertures in said second leg extension; said lock base and said spring handle each having a respective length between said respective lips and said respective spring stops such that a distance between said spring stops when said locking member is positioned between said rails is less than a length of said spring whereby said spring urges said lock base and said spring handle outwardly such that said locking member is held in place and said leg extensions are held in place with respect to said ladder.
Claim 2
Dependent Claim 611 words
A ladder leveling system, comprising: a ladder having a first and a second rail, a bottom rung extending between said first rail and said second rail, a top rung extending between said first rail and said second rail, and a plurality of intermediate rungs, each of said plurality of intermediate rungs extending between said first rail and said second rail; wherein said first rail and said second rail each include a hole therethrough, each hole being positioned between said bottom rung and a lowermost end of each respective rail of said ladder; a pair of first rail handle bands, each first rail handle band being coupled to a said first rail of said ladder, said pair of first rail handle bands having an upper handle band having a hole aligned with the hole in said first rail; a pair of second rail handle bands, each second rail handle band being coupled to a said second rail of said ladder, said pair of second rail handle bands having an upper handle band having a hole aligned with the hole in said second rail; a first leg extension, said first leg extension being insertable through said pair of first rail handle bands against said first rail such that said first leg extension is held against said first rail, said first leg extension being structured to include a first leg aperture aligned with said first rail hole; a second leg extension having a plurality of spaced second leg apertures therethrough, said second leg extension being insertable through said pair of second rail handle bands against said second rail such that said second leg extension is held against said second rail, said plurality of second leg apertures being substantially aligned through a central longitudinal axis of the second leg extension; a spring-loaded locking member having a spring, a lock base and a spring handle, said lock base and said spring handle being insertable through said spring, said lock base further being insertable into a first end of said spring handle; said lock base having a lock base spring stop and said spring handle having a spring handle spring stop such that said lock base spring stop and said spring handle spring stop abut opposing ends of said spring when said lock base and said spring handle are inserted through said spring; said spring handle having a distal end opposite said spring handle spring stop, said spring handle further having a lip proximate said distal end, said lip being for abutting said upper handle band fixed to said first rail of said ladder such that said distal end of said spring handle extends through said upper handle band, said hole in said first rail and said aperture in said first leg extension; said lock base having a distal end opposite said lock base spring stop, said lock base further having a lip proximate said distal end, said lip being for abutting said upper handle band fixed to said second rail of said ladder such that said distal end of said lock base extends through said upper handle band, said hole in said second rail and a selectable one of said apertures in said second leg extension; said lock base and said spring handle each having a respective length between said respective lips and said respective spring stops such that a distance between said spring stops when said locking member is positioned between said rails is less than a length of said spring whereby said spring urges said lock base and said spring handle outwardly such that said locking member is held in place and said leg extensions are held in place with respect to said ladder.
Claim 3
Dependent Claim 29 words
The ladder leveling system of claim 1, wherein said first leg extension and said second leg extension each include a pivoting foot coupled to a respective lowermost end thereof.
Claim 4
Dependent Claim 26 words
The ladder leveling system of claim 2, wherein each pivoting foot includes a gripping portion for facilitating secure placement of said pivoting foot on a surface.

References Cited (Backward Citations)

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US3948352A Cited
US4606432A Cited
US5107958A Cited
US5325936A Cited
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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2002-05-31 2002-11-30 2003-06-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2006-05-31 2006-11-30 2007-06-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2010-05-31 2010-11-30 2011-06-01 $7700.00 Window Closed / Lapsed

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