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8127892 |
Rope ladder
The present invention relates to a method and apparatus for providing a flexible ladder for traversing a structure that addresses problems common with conventional rope ladders.
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5343980 |
Child/parent play ladder
A ladder which makes it possible for one person to climb onto another, particularly, a ladder which can be worn by an adult for the purpose of enabling a child to climb up the ladder and onto the...
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5255757 |
Collapsible ladder
The present invention provides a portable collapsible ladder that is easily secured onto a vehicle or structure mounted on a vehicle, such as a roof-top rack, to provide ease of access to the upper...
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4919182 |
Motor vehicle emergency tire traction improvement device consisting of polymeric rope
An emergency motor vehicle tire traction improving device for attachment or mounting to a conventional motor vehicle tire is made substantially totally of multi-strand polymeric plastic rope and...
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4852688 |
Collapsible ladder assembly
A collapsible ladder assembly for emergency exit from a building is secured to a window opening by a pair of anchoring hooks and includes two pairs of spaced-apart flexible rail members which...
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4683981 |
Molded hard elastomer steps and replacement and spreader steps for rope ladders and fittings therefor, as well as molding method therefor
A rope ladder of the type having two spaced-apart pairs of ropes, has a metal frame for each step and has tubular nylon members with cylindrical bores, extending vertically through sets of through...
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4442920 |
Collapsible ladder
A collapsible ladder which includes a plurality of platforms suspended from several rope segments. The rope segments are placed in open-ended notches disposed in the platforms and are clamped...
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4177878 |
Rope ladder
A rope ladder in which a pair of bolted-together wedge collars and a wedge heart act upon a pair of ropes at each side of each step, to wedge themselves to the rope so that they and their step are...
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3907065 |
Grain bin safety device
A safety device for a grain bin having four vertically disposed members being held together by a plurality of horizontally disposed X-shaped braces spaced along the length of the vertically...
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3415341 |
Emergency fire escape
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2858055 |
Net-type ladders
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