Access ladder and method
AssigneeWerner Co.
InventorThomas Parker
Life of this patent
Estimating the term…
Abstract
An access ladder for an access hole in a building includes a plurality of sections which telescope relative to each other between an extended position, where the sections define a plane and a user can climb the sections, and a retracted position where the sections are folded on each other. Several of the sections have a least one step which preferably moves between an unfolded position where the user can stand on the step when the sections are in the extended position, and a folded position when the sections are in the retracted position. Each section slides relative to another section of the plurality of sections which it is in contact in order for the sections to telescope. A method for using an access ladder attached to an end of an access hole of a building.
Claims18
An access ladder for an access hole in a building comprising:
- a plurality of sections which telescope relative to each other between an extended position, where the sections define a plane and a user can climb the sections, and a retracted position where the sections are folded on each other, several of the sections having a least one step which moves between an unfolded position where the user can stand on the step when the sections are in the extended position, and a folded position when the sections are in the retracted position, each section slides relative to another section of the plurality of sections which it is in contact in order for the sections to telescope.
A method for using an access ladder attached to an end of an access hole of a building comprising the steps of:
- telescoping a plurality of sections of the ladder into an extended position from a retracted position, where the sections are folded on top of each other, by sliding each section down over another section behind it which also causes the steps of the sections to unfold;
- and
- placing a bottom section of the plurality of sections in contact with the ground.
An access ladder for an access hole in a building comprising:
- a plurality of sections which telescope relative to each other between an extended position, where the sections define a plane and a user can climb the sections, and a retracted position where the sections are folded on each other, several of the sections having a least one step, each section slides relative to another section of the plurality of sections which it is in contact in order for the sections to telescope.
A method for using an access ladder attached to an end of an access hole of a building comprising the steps of:
- telescoping a plurality of sections of the ladder into an extended position from a retracted position, where the sections are folded on top of each other, by sliding each section down over another section behind it;
- and
- placing a bottom section of the plurality of sections in contact with the ground.
Dependencies are inferred from the claim text.