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US 10,895,110 B2Granted
Ladder stabilizer
AssigneePhilip F. Lanzafame
InventorPhilip F. Lanzafame
Life of this patent
Estimating the term…
Abstract
Provided is ladder having an extension leg movable longitudinally in first and second directions opposite one another, and a stabilizer arm pivotably coupled to and movable with the extension leg. The stabilizer arm is pivotable about an axis perpendicular to the first and second directions such that the stabilizer arm is rotated relative to the extension leg to contact a surface to stabilize the ladder in a sideways direction perpendicular to the first and second directions.
Claims18
A ladder comprising:
- an extension leg configured to be attached to a rail of a ladder, said extension leg is movable longitudinally in first and second directions opposite one another;
- a stabilizer arm pivotably coupled to and movable with the extension leg, the stabilizer arm having a first end pivotally coupled to the extension leg and a second end, the stabilizer arm being pivotable about an axis perpendicular to the first and second directions such that the stabilizer arm is rotated relative to the extension leg to contact a surface to stabilize the ladder in a sideways direction perpendicular to the first and second directions;
- a shoe connected to the stabilizer arm at the second end and configured to contact the surface to prevent/reduce slipping;
- and
- a brace extrusion having a first end coupled to the stabilizer arm and movable in the sideways direction with the stabilizer arm, and a second end pivotally coupled to the extension leg above the first end of the stabilizer arm, said second end of said brace extrusion is movable longitudinally in the first and second directions when the first end of the brace extrusion is moved in the sideways direction.
2 more elements
A ladder comprising:
- an extension leg configured to be attached to a rail of a ladder, said extension leg is movable longitudinally in first and second directions opposite one another;
- a stabilizer arm pivotably coupled to and movable with the extension leg, the stabilizer arm being pivotable about an axis perpendicular to the first and second directions such that the stabilizer arm is rotated relative to the extension leg to contact a surface to stabilize the ladder in a sideways direction perpendicular to the first and second directions;
- a locking hub rail;
- a release lever pivotably secured to the extension leg and configured to engage the locking hub rail when a load is applied to lock extension leg;
- and
- a safety bar movable relative to the extension leg in the first direction when the load is applied to contact and hold the release lever to prevent the release lever from unlocking from the locking hub rail;
- and
- a brace extrusion having a first end coupled to the stabilizer arm and movable in the sideways direction with the stabilizer arm, and a second end pivotally coupled to the extension leg above the first end of the stabilizer arm, said second end of said brace extrusion is movable longitudinally in the first and second directions when the first end of the brace extrusion is moved in the sideways direction.
5 more elements
A ladder comprising:
- an extension leg configured to be attached to a rail of a ladder, said extension leg is movable longitudinally in first and second directions opposite one another;
- a stabilizer arm having a first end and a second end and being a fixed length, the stabilizer arm being pivotably coupled to the extension leg at the first end and movable with the extension leg, the stabilizer arm being rotatable relative to the extension leg to contact a surface to stabilize the ladder in a sideways direction perpendicular to the first and second directions;
- and
- a brace extrusion having a first end coupled to the stabilizer arm and movable in the sideways direction with the stabilizer arm, and a second end pivotally coupled to the extension leg above the first end of the stabilizer arm, said second end of said brace extrusion is movable longitudinally in the first and second directions when the first end of the brace extrusion is moved in the sideways direction.
1 more element
Dependencies are inferred from the claim text.