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7222696 |
Independently adjustable extensions for leveling a ladder
Independently adjustable ladder extensions for use with folding, step, or extension ladders includes at least one pair of adjustable support legs slidably disposed within the channels of the side...
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7121382 |
Independently adjustable extensions leveling a ladder
Independently adjustable ladder extensions for use with folding, step, or extension ladders includes at least one pair of ladder extensions with each ladder extension including an adjustable leg...
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7017711 |
Method for extending the leg of a ladder and apparatus therefor
An extender and method for extending the leg of a ladder can both lengthen and stabilize the leg of the ladder. The extender includes a first channel shaped and dimensioned to receive the leg of...
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6948591 |
Support apparatus or accessory for a ladder
The present invention relates to a support apparatus or accessory capable of attaching to an article, such as a ladder via mating and locking of a primary attachment member connected to the support...
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6745870 |
Adjustable ladder support
A channel with sliding clamp and rod arrangement for leveling a ladder comprising a base unit of a hollow rectangular shape adapted to fit over the leg of the ladder. The base unit has interior...
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6702066 |
Ladder leveling device
A ladder leveling device including a gripping plate having an inner surface and an outer surface. The gripping plate has an elongated central slot therethrough that corresponding with a vertical...
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6698550 |
Adjustable step ladder
An adjustable back leg assembly provides a step ladder of simple construction for convenient use on stairs and other sloping surfaces.
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6655497 |
Stabilizer for ladders
A stabiliser for ladders comprises a rigid, generally flat base ( 10; 71 ) having a linear channel ( 11; 70 ) extending along a first, upper surface thereof, which channel is defined by a pair of...
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6640932 |
Ladder stile extender
A ladder stile extender comprises two elongated members ( 20, 25; 50, 53; 80, 85 ) one of which is slidable within the other and having means for securing one of the members ( 20; 50; 80 ) to a...
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6604607 |
Extendable A-frame ladder for uneven surfaces
An A-frame ladder able to be on uneven surfaces, stairs or level surfaces in a stable and level configuration, includes a sliding ladder segment attached to the A-frame ladder segments, locking...
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6374947 |
Ladder leveling device
A ladder leveling device including an upper block portion couplable with respect to a bottom of a ladder leg. The upper block portion has a generally rectangular configuration defined by a closed...
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6237718 |
Extendable leg means for levelling ladders and the like
A leg extension device for use in levelling a ladder or other work platform requiring a level step, includes a first leg member and a second extending leg member, substantially parallel with, and...
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6234710 |
Lockable adjustable length member
This invention provides an adjustment length member (100) for fitment to a variety of apparatus including ladders. The preferred form provides two members (1,2) contained in sliding contact one of...
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6234273 |
Adjustable ladder
A adjustable ladder for leveling a ladder on an uneven surface. The adjustable ladder includes a ladder and leveling system. The ladder has a first leg, a second leg, and a plurality of rungs...
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5816364 |
Ladder leveling apparatus
A ladder leveling apparatus 10 including a ladder member 20 having ladder legs 21 that are received in a ladder leg adapter unit 12 including boot members 30 wherein the position of the bottom of...
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5542497 |
Ladder level adjusting attachment
A ladder level adjusting attachment for a ladder of the type having a pair of generally parallel side rails, a plurality of hollow rungs interconnecting the side rails and a pair of shoes, each...
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5421429 |
Ladder with safety feet
A ladder having legs having lower ends, has a safety foot pivotally connected to each lower end. Each safety foot has a hinge having two plates one of which is secured to the ladder foot and the...
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5265698 |
Self-leveling ladder
An extendable stepladder has a pair of front legs and a pair of rear legs (10), first steps for connecting the front legs together and second steps for connecting the rear legs together. A slider...
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5265699 |
Ladder Guard
A ladder guard for a ladder having a pair of side rails and a plurality of rungs is provided which consists of an elongate stanchion. A base has a longitudinal aperture therethrough, so that the...
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5232067 |
Stile extending attachment for ladder
An attachment device is provided for use with a ladder having two side stile members and a plurality of hollow rungs connected therebetween for extending at least one of said side stile members so...
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5181584 |
Ladder leveling adapter
The ladder leveling adapter comprises a pair of spacers adapted to be secured outwardly on the side rails of the ladder between two interconnecting rounds. An elongated bar having a median slot...
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5154257 |
Adjustable ladder apparatus
A ladder apparatus including a plurality of spaced parallel ladder legs, with each ladder leg telescopingly mounting an extension leg relative to each ladder leg to accommodate uneven surface...
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5148892 |
Quick stand adjusting device
A quick stand adjusting device for adjusting the height of the stand of a ladder, a chair, an instrument or equipment, comprising a split retainer controlled by a control device, which is comprised...
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5074378 |
Multi-purpose ladder with locking mechanism for extendible legs
A ladder with extendible legs that may be individually and selectively, secured in the desired extent of protraction by a relatively uncomplicated locking mechanism. The locking mechanism may be...
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5064024 |
Ladder leg extender apparatus with improved vertical adjustment means
A ladder leg extender apparatus for attachment to the leg of a ladder to lengthen the leg as required to support the ladder on an uneven support surface. The apparatus comprises a sleeve secured to...
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5027923 |
Extension device for a ladder
An attachment for a ladder includes a housing and an extensible leg. The housing is clamped to the side of a ladder, and the extensible leg is extended to engage the ground after the ladder has...
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4995474 |
Safety ladder
A safety ladder is disclosed. The safety ladder comprises at least two legs each of which containing a smooth longitudinal blind bore, a steel hollow pipe having an outer surface and being smoothly...
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4844208 |
Ladder extension device
A ladder accessory for releasably securing a wooden extension to a leg of a ladder comprises a metal channel member for receiving the ladder extension so as to allow longitudinal sliding adjustment...
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4836331 |
Ladder safety device-antislip
A device which is easily attached to the stiles of any ladder. This highly reliable device creates a steadfast ladder, removing the fear of the ladder flipping over or slipping out from under. This...
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4766976 |
Ladder leg extender and leveler
An improved ladder leg extender and leveler assembly including a frame structure which can be fixed in flush face-to-face relation to a ladder leg side so as to straddle rung fastener protrusions...
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4744441 |
Screw-type ladder leveler
A device for leveling a metal ladder comprising a mounting bracket which can be attached to the outside web of a ladder side rail, a threaded shaft embodied with a handle at its upper distal end...
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4722420 |
Special purpose ladder
This ladder is designed to clamp to sign posts for workman safety. Primarily, it consists of a pair of stepped legs with a hinged shelf at the top having a clamp that clamps to a sign post. A...
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4683980 |
Ladder-leveling device
A load leveling device for a ladder in the form of a compensator boot which slips onto a lower end of one of the legs of the ladder. The boot includes a vertically elongated block of homogeneous,...
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4676342 |
Trestle ladder
A trestle ladder includes adjustable leg extensions to accommodate uneven and irregular surfaces while maintaining the ladder in proper vertical and horizontal orientation. A binding clamp is...
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4412599 |
Ladder attachment
A ladder attachment for securement to a ladder leg which can function as a ladder standoff, ladder leg extension or roof ridge hook. The ladder standoff arrangement permits the ladder to be...
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4371057 |
Telescopic scaffold
A telescopic scaffold comprising opposed pairs of elongated support legs each received in adjustable sleeve members securable at a predetermined location therealong. Arresting means is provided to...
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4143742 |
Ladder extension apparatus
A ladder extension device for enabling a ladder to stand upright upon uneven or inclined surfaces is disclosed which is composed of a pair of diametrically opposed side members, preferably...
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3995565 |
Extensible telescoping cargo brace
An extensible cargo brace for extending between and maintaining firm contact with opposite walls of a cargo vehicle. A pair of spaced inner rails is slidably, telescopically mounted within a pair...
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3908796 |
Self-levelling accessory for ladders
A self levelling accessory for extension ladders to accommodate to uneven terrain includes a pair of sockets secured to a cross member and adapted to be mounted on the lower end of a ladder. Two...
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3791487 |
RAIL EXTENSION DEVICE FOR LADDERS
An extension device attachable to the side rails of ladders that is adjustable to maintain the ladders in vertical positions upon uneven supporting surfaces, said device being readily manipulated...
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3554321 |
EXTENSIBLE FOOT FOR LADDERS
An extensible foot for ladders for adjustment of the ladder to uneven and slanting terrain, comprising a channel fixed on at least one of the sidepieces of the ladder, by a bolt passing through one...
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3208227 |
Demountable pier structure
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3058789 |
Ball bearings
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3047061 |
Screen frame fixture
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3032140 |
Ladder attachments
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3027968 |
Ladder fittings
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3025926 |
Safety ladder device
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3021921 |
Ladder extension
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2914135 |
Equalizing foot attachment
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2911134 |
Leg length adjusting apparatus
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