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6318498 |
Collapsible ladder
A collapsible ladder provides a plurality of segments, each segment associated with one rung of the ladder. The segments may be folded into a flat or planar configuration, after which each segment...
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6119811 |
Multiple functional, foldable, and portable ladder
A multiple functional, foldable, and portable ladder comprises a plurality of ladder units 5, wherein the ladder unit has a supporting rod on the two sides thereof. Each supporting rod is foldable...
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5605203 |
Automatic foldable emergency ladder system
An automatic foldable emergency ladder system for use in a building having a smoke detecting device includes an inverted L-shaped housing having a horizontal portion and a vertical portion and...
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5211260 |
Collapsible ladder
A collapsible ladder that is relatively rigid and includes friction means for controlling the rate of deployment. The ladder comprises a plurality of tubular rungs and side support members...
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5018600 |
Extendible ladder
An extendible ladder includes a sealed housing for housing the ladder in a collapsed condition. The ladder mounts to a support wall such as the side of a home or an apartment building. The ladder...
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5012892 |
Escape ladder
A normally retracted escape ladder assembly that includes a framework mountable on a building wall, a plurality of ladder sections movably interconnected and having at least one such section...
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4926967 |
Folding ladders
A folding ladder comprises a series of modules, each module including a pair of spaced, parallel stile sections connected together by a transverse tread section. The modules are of decreasing size...
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4884659 |
Collapsible ladder
A relatively simple, lighweight, portable, collapsible ladder includes a plurality of H-shaped sections pivotally interconnected end-to-end to define a flat bundle in the stored or non-use...
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4751982 |
Foldable ladder
A foldable ladder having a plurality of rigid steps and inwardly folding arms pivotably secured to the steps so as to be rigid in use by capable of being folded for storage.
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4742795 |
Stern gate for a boat hull
A hull for a boat includes a lower hull having a bottom below a static waterline and freeboard sides above the waterline. An aft passenger cockpit has a floor above the waterline and a lower stern...
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4625831 |
Deer stand
A hunting stand pivotally mounted on the rack of an all-terrain vehicle. The stand comprises a pair of mounting brackets, a three-sectional ladder having pivot pins and locking pins for allowing...
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4613013 |
Suspension ladder
A suspension ladder comprises a string of identical rigid rectangular sections (1) which are hinged together about a series of parallel axes adjacent their longer rear edges (2), and each of which...
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4574918 |
Ladder locking mechanism
A portable folding ladder comprising a plurality of U-shaped modules having a rung and two vertical portions, the modules movable connected to each other, and when opened becoming progressible...
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4541507 |
Universal folding ladder for boats
A universal folding ladder for inflatable boats and pleasure craft comprising a tubular structure intended for straddling the gunwale of a boat and including at least two L-like elements extending...
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4519476 |
Detachable workbench top
This invention relates to a detachable top to be used with foldup ladders of the type described in co-pending applications Ser. Nos. 06/341,830; 06/492,487; and 06/537,276. Also, this top can be...
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4493392 |
Convertible fold-up ladder
A portable folding ladder comprising a plurality of U-shaped modules having a rung and two vertical portions, the modules movable connected to each other, and when opened becoming progressively...
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4457391 |
Fold-up ladder
A portable folding ladder comprising a plurality of U-shaped modules having a rung and two vertical portions, the modules movable connected to each other, and when opened becoming progressible...
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4448283 |
Portable fold-up ladder
A portable and convertible ladder comprising a series of u-shaped modules each movably connected to the other by hinge means, said modules having progressively decreasing widths as they approach...
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4260038 |
Folding sawhorse frame
A pair of triangular supports are provided with cross member sockets on the upper ends thereof. A cross bar extends between the end supports and is pivoted to each so that they can be folded...
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4231449 |
Foldable ladder
A foldable ladder having a plurality of rigid steps and of rigid links which steps and links are pivotally secured together with pivot pins to result in a rigid ladder in use, but capable of being...
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4193476 |
Link ladder
A multi-purpose, lightweight, portable ladder comprising a plurality of link elements pivotally secured together in end-to-end relation, each link being of a substantially A-shaped configuration...
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4102433 |
Ladder
An extension roof ladder is disclosed having conventional extension ladder sections for use at the side of a building and connected thereto a flexible roof ladder section having a plurality of...
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4100995 |
Telescopic set of steps with variable slope
A telescopic set of steps comprises at least two frames, each of which consists of two parallel members forming stringboards, one end of one of the frames being pivoted to a fixed support for...
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4067413 |
Collapsible ladders
A collapsible ladder for use as an emergency escapeway is described which has two side members between which rungs extend. The side members are each composed of a plurality of sections, which are...
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4022292 |
Portable tree stand or crows nest
A portable tree stand which can be used for hunting or other purposes and which can be pushed to any desired height with the use of a pole which fits into a receptacle and includes a pair of...
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3946834 |
Self storing fire escape ladder
A self storing fire escape ladder of foldable type, including a plurality of pivotally interconnected rung sections and enlarged hook means for engaging a window sill or similar structure during...
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3757896 |
LADDERS
This invention relates to a ladder capable of being erected from a plurality of similar rungs and links, the ladder being capable of being folded in a zig-zag manner and also of being dismantled...
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3698512 |
COLLAPSIBLE LADDER DEVICE
A collapsible ladder device comprising a plurality of series connected hinged members extendible to a linear condition and foldable to a collapsed condition. The plurality of members include first...
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3677366 |
SELF-STORING FIRE ESCAPE LADDER
A concealed storage fire escape ladder of the general type disclosed in U.S. Pat. No. 3,547,226, and having structural refinements affording greater strength during use and improved convenience in...
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3547226 |
FIRE ESCAPE LADDER
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3397546 |
Roll out-roll in dock
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3344886 |
Combined fire escape and flower box and the like
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3315762 |
Collapsible ladder
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3231045 |
Collapsible ladder
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3143186 |
Emergency exit means
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3139949 |
Articulated ladder
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3053358 |
Adjustable cable way connector
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2998863 |
Fire escape ladders
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2946398 |
Collapsible metal ladder
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