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7604212 |
Collapsible frame having a base mechanism
A collapsible frame has a base mechanism. The base mechanism comprises a first connector and a second connector which are pivotally connected to the bottom of the collapsible frame. The first...
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7556054 |
Foldable frame element and system with tension lock
A frame element includes a first scissor including a first and a second strut pivotably connected to each other at a first pivot point, a second scissor including a third and a fourth strut...
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7100333 |
Loop assemblies having a central link
Improved reversibly expandable structures are formed from novel loop assemblies comprising a plurality of links, each of said links having at least one center pivot joint and a plurality of end...
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7044146 |
Portable shelter with rolling element bearings
The present invention provides an improved portable shelter frame having upwardly extending support poles and linkage assemblies connecting the poles. Within the joints of the linkage assemblies...
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6981350 |
Projection screen apparatus
A projection screen apparatus is disclosed for displaying an image projected by a projector. The projection screen apparatus includes a collapsible frame and a removable display sheet.
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6901714 |
Tensegrity unit, structure and method for construction
Tensegrity units may be used to form a tensegrity structure. Each tensegrity unit may include n face tension members, n continuous tension members, and n compression members. A bracket for the...
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6739098 |
Retractable structures comprised of interlinked panels
This invention discloses tongs-linkage, which, in its extended position, provides an essentially triangular-shaped surface, whereby the links of the tongs-linkage are themselves the panels that...
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6591571 |
Hub assembly for collapsible display panel
A hub assembly for pivotally connecting the ends of support rods of a portable self-supporting display structure configured for a collapsed storage position and an expanded display position. The...
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6223482 |
Portable, easily composable supporting skeleton
A portable, easily composable supporting skeleton which serves as a supporting structure of buildings composable in situ. The skeleton comprises a pipe-like spacer. Two dismountable node plates can...
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6219974 |
Reversibly expandable structures having polygon links
Reversibly expandable structures are formed from loop assemblies comprising interconnected pairs of polygonal shaped links. Each loop assembly has polygon links with at least three pivot joints and...
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6152157 |
One-touch assembling collapsible tent frame
A one-touch assembling collapsible tent frame is disclosed. In the tent frame, the pole ribs are quickly coupled to the tent frame through a one-touch motion. The tent frame is stably supported on...
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6148835 |
Temporary housing frame
A temporary housing frame is provided including a plurality of supporting columns. A first link member formed from equal length rod member connects two adjacent supporting columns. A second link...
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6141934 |
Folding frame system with foldable leg assembly and method of erecting a folding frame system
A folding frame system includes a roof assembly including at least three pivotably attached strut pairs, adjacent pairs of the at least three pivotably attached strut pairs defining at least three...
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6109283 |
Retractable enclosure system
A retractable enclosure for moveable areas such as barges or trucks and for stationary areas such as swimming pools and areas which must be covered at one time and open at another time such as...
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6050365 |
Scissors-type work platform lift machine with electro-mechanical based lift actuation arrangement
A scissors-type work platform lift machine includes a mobile chassis having rear stationary wheels and front steerable wheels, a scissors lift mechanism mounted at a lower end on the chassis, a...
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5857648 |
Precision deployable boom assembly
A precision deployable boom assembly 10 for terrestrial and celestial applications comprises an extendable and retractable boom 12 having a fixed end 14, a movable distal end 20 and three or more...
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5845451 |
Telescoping polygonal figure
A figure for positioning into a variety of polygonal orientations. The figure includes telescoping outer members pivotally connected to one another to form a polygon. The telescoping members can...
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5761871 |
Framework structure
A framework structure comprises three or more primary constituent units each including two rigid diagonal members constituting the diagonals of a quadrangular lateral face of a solid and coupled...
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5657584 |
Concentric joint mechanism
A joint mechanism having a movement between relative members about a center of rotation located at a point where a first line extends from one of the members intersects a second line extending from...
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5490532 |
Adjustable tension shelter assembly
A collapsible shelter of the type having an awning and collapsible frame, the frame having either adjustable or fixed end caps at its corners bearing against reinforcing strips, and a center post...
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5351843 |
Folding display frame for forming column-like structures
A collapsible portable framework is expanded to an open position forming a long, narrow, column-like structure for a folding display frame, in which generally rectangular frame-like cubicles are...
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5327700 |
Collapsible modular display tower assembly
A collapsible modular display tower assembly has a three-dimensional, collapsible display panel structure having two opposing pairs of pivotally-connective links with upper and lower ends arranged...
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5297368 |
Movable wall system
A movable wall system for athletic courts makes the same court suitable for both racquetball, handball and squash play. The system disclosed includes a movable wall assembly between the front wall...
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5290050 |
Collapsible basket structure
A shopping basket is comprised of an arrangement of plural lazytongs frames movable from folded to extended position in which they constitute an erected structure having a floor provided by support...
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5275188 |
Modified folding tent
A modified folding tent is provided. The tent comprises a plurality of main supporters and supporting structures, and a topmost supporter, to form a frame which is covered by an awning. Each main...
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5251412 |
Pantographically movable support apparatus
A support apparatus has lengthwise beams which are coupled together by a plurality of cross members. The beams are hingedly fixed to the plurality of cross members via intermediate members. The...
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5203134 |
Pivotal frame connector
A pivotal frame connector or pivotal coupler for pivotally attaching two adjacent display structures wherein each of the display structures includes a skeletal frame formed of a network of elongate...
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5203126 |
Slidable foot assembly for collapsible display
A slidable foot assembly for stabilizing a collapsible display structure. Such structures include a network of support rods which form a skeletal frame for the structure and which are pivotally...
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5167100 |
Deployable structures
A deployable three dimensional structure is provided formed from at least three circumferential scissors like elements joined together and at least three radial scissors like elements joined...
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5154033 |
***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
Pivotal frame connector
A pivotal frame connector or pivotal coupler for pivotally attaching two adjacent display structures wherein each of the display structures includes a skeletal frame formed of a network of elongate...
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5145029 |
Self-storing maintenance stand for a scissor lift aerial work platform
A self-storing maintenance stand for a scissor lift aerial work platform wherein a pair of arms are freely pivoted on each side of a stack of pivotally connected scissor arms at the medial portion...
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5125205 |
Display frame with folding display attachment devices
A collapsible framework is constructed of rods pivotally joined at their ends to hubs to form a self-standing unit when expanded and to fold into a small set of nearly parallel rods when folded. In...
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5123550 |
Collapsible light-weight framework for exhibition use
In a collapsible lightweight framework for display use and of the type composed of square modules disposed in side-by-side and/or superposed relationship and consisting of articulated rods, whose...
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5115623 |
Display system
A hinged three-dimensional display system primarily intended for advertising and display purposes, is constructed of bars or tubes and connecting pieces, the bars or tubes being pivoted to each...
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RE33710 |
Portable shelter assemblies
A portable shelter framework is formed by a series of end-interconnected modules, each defining a separate arch portion of the framework extending in different directions relative to each other....
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5038532 |
Deployable spatial structure
The present invention relates to a deployable, continuously extendible and collapsible, closed or open ended, free standing or supported spatial structure comprising an array of spaced apart...
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5024031 |
Radial expansion/retraction truss structures
A loop-assembly is disclosed which is comprised of at least three scissors-pairs, at least two of the pairs comprising: two essentially identical rigid angulated strut elements, each having a...
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4995212 |
Collapsible framework
A collapsible framework comprises a plurality of spars pivotally connected with hub members. The hub members comprise a first set which are disposed at the front of the framework when erected and a...
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4986016 |
Folding display frame with offset hub configuration
A collapsible framework is constructed of rods pivotally joined at their ends to hubs to form a self-standing unit when expanded and to fold into a small set of nearly parallel rods when folded. In...
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4947884 |
Collapsible canopy with auto erect roof support structure
A canopy shelter has a plurality of corner support forming legs that may be positioned on a support surface. Scissor assemblies interconnect adjacent ones of the corner supports and are each...
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4942700 |
Reversibly expandable doubly-curved truss structure
A loop-assembly is disclosed which is comprised of at least three scissors-pairs, at least two of the pairs comprising: two essentially identical rigid angulated strut elements each having a...
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4846204 |
Collapsible frame structure for portable camp room
A collapsible frame structure for a portable camper, particularly a pair of such frame structures which may be joined to form a bed supporting frame and a tent supporting frame extending in an arch...
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4844109 |
Motor vehicle shelter
An extendible and retractable shelter for a vehicle has a plurality of bows slidable along a pair of ground mounted tracks from an extended position to a retracted position. A flexible canvas or...
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4809471 |
Diagonal assembly for folding display frames
A folding display frame comprises a grid of horizontal and vertical rod members forming an array of three dimensional cubicles. The cubicles have eight corners with a separate hub at each corner of...
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4791761 |
Lockable display frame
A collapsible, articulated structural section which is movable between a stable erect configuration and a collapsed configuration includes a manually actuable positive lock for locking the device...
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4781007 |
Deployable wooden ossature
An ossature comprising a truss constituted by a plurality of mutually parallel vertical elements, and a lower rail and an upper rail on which the ends of the vertical elements engage when the truss...
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4779635 |
Collapsible canopy with telescoping roof support structure
A canopy structure is provided and includes a framework unit and a flexible covering. The framework unit is formed by a plurality of upright corner members and a plurality of roof support members...
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4747239 |
Brackets for connecting adjacent exhibit frames together
A pair of self-supporting exhibit frames formed of a plurality of pairs of crossed rods are constructed so as to be moved between a collapsed position at which the rods are disposed in a compact...
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4741413 |
Elevating apparatus
An elevating apparatus including a base, a platform, at least a pair of pivotally interconnected boom assemblies connecting the base and the platform together, the pair of boom assemblies including...
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4715159 |
Collapsible building construction system
A collapsible building construction system and method for erecting the same in which a plurality of horizontally disposed floor slabs are adapted to stack one on top of the other in a collapsed...
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