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Document Title |
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8011475 |
Ladder
An extension ladder, including multiple ladder sections, each including a pair of pin holes, a pair of columns, and a rung, including a pair of pins, a pair of springs, a gear, a pair of gear...
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7086499 |
Light weight ladder systems and methods
A method for manufacturing a rail for a ladder. The method may include pultruding in a longitudinal direction, a rail having a selected cross-sectional shape. The rail may then be cut to a...
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6758016 |
Adjustable support for steps
A support for steps, having the shape of a triangular corner plate to be installed one after the other along a stringer. The sides of this support are reinforced, horizontally and vertically by a...
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5967260 |
Full-length step ladder with large, fold-away steps
A fold-up step ladder having individually and independently fold-down steps that are deep recessed in their fold-down position, so that a person standing on the ladder can lean into and between the...
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5148891 |
Ladder extension step apparatus
A ladder extension member is arranged for securement to an associated ladder step of an associated ladder, wherein the organization is dismounted relative to the ladder step for resecurement...
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5060757 |
Adjustable rungs for ladder
Adjustable cross pieces or rungs for aiding in forming a ladder using a tree cut at predetermined lengths and trimmed of branches. The cross members include two end members and a centrally located...
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5002153 |
Ladder structure
An improved ladder structure comprising a pair of stiles, a plurality of rungs, and a plurality of brackets. Wherein, each bracket consisting of two parallel arms, with a securing hole formed on...
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4981195 |
Alternating tread ladder apparatus
An alternating tread ladder apparatus and an associated tread step bracket are disclosed. The apparatus comprises an elongated central tread support for mounting between a upper level and a lower...
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4949811 |
Ladder brace
A ladder brace is provided being substantially channel shaped and having free edges which abut both the step and stile of the ladder. The brace closes off a portion of the stile.
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4730701 |
Stepladder assembly
A stepladder assembly has step assemblies mounted to its front rails using a bracket at each end of each step. Each bracket has truss anchor pocket means therein. Each truss rod is headed at both...
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4631880 |
Adjustable staircases
An adjustable staircase assembly comprises a pair of channel section stringer members having spaced tread support pivots adjacent their lower edges and tread locating apertures adjacent their upper...
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4015687 |
Step bracket
A novel step bracket is provided and is adapted for securing a step in a horizontal position to a downwardly sloping stringer. Preferably, the bracket is formed from a sheet of metal and comprises...
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D029735 |
Title is not available
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3115214 |
Portable step attachment for ladders
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3112811 |
Auxiliary safety step for rung ladders and locking means therefor
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2899011 |
Ladder step
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2867855 |
Adjustable stair
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