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"Rail travel at high speeds is not possible because passengers, unable to breathe, would die of asphyxia."
Dionysius Lardner, Professor of Natural Philosophy and Astronomy at University College, London ; 1830
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| Number | Title | Issue Date |
| 7438266 | Stackable instrument stadium hardware stand An expandable musical instrument stand where the components of the stand are constructed with tubular sections. The tubular section are extruded to include dovetail cross sectional areas that can be stacked and a semi-circular locking collar slides into the dovetail... | 10/21/2008 |
| 7431257 | Foldable painting stand A painting stand for supporting articles to be painted. The painting stand includes a pair of bow members being for selectively supporting the articles to be painted. One of the bow members is operationally coupled to the other one of the bow members whereby the bow... | 10/07/2008 |
| 7422187 | Support stand Interlocking parts that can be assembled to form a stand are shown. Each part includes at least one leg, and when the stand is assembled, it includes a total of at least three legs, which support the stand. Each part also includes an interlocking buckle member coupl... | 09/09/2008 |
| 7413254 | Quick-assembly stool A portable, easily assembled and disassembled three-legged stool or stool kit includes a seat with a quick-release leg-fastening assembly, three legs having keyhole slots to engage with the quick-release leg-fastening assembly, and a substantially planar leg bracket... | 08/19/2008 |
| 7367617 | Collapsible pocket chair The present invention provides a collapsible, portable, tripod chair. ... | 05/06/2008 |
| 7368647 | Support for a musical keyboard instrument A support for a musical keyboard instrument has a first leg, a second leg and an adjuster. The first leg is pivotally connected to the second leg and a rod is formed in a sidewall of the second leg. Two first spiral surfaces are respectively formed in a free end of ... | 05/06/2008 |
| 7287730 | Foldable stand A foldable stand includes two lower parts and two upper parts, the two lower parts are respectively and pivotably connected to the two upper parts by two plates located between the two lower parts. Each plate has two stops on two sides thereof so as to maintain the ... | 10/30/2007 |
| 7261271 | Folding wire reel carrier A device that has as simple frame that pivots at the center instead of the top. The axels are stored in the device when not needed. They are simply slipped through holes in the frame for use. Reels are placed on the outside of the frame, which makes changing reels s... | 08/28/2007 |
| 7168580 | Rack A first section of a rack includes a first lower wire bend, a second lower wire bend, a first upper wire bend, and a second upper wire bend. The first section also includes a first pivot coupling into which is received a first end of each of the first and second low... | 01/30/2007 |
| 7063006 | Fire pit grill apparatus A fire pit grill apparatus includes a housing that has a top wall, a bottom wall and a perimeter wall extending between the top and bottom walls. A motor is mounted in the housing. A drive shaft is mechanically coupled to the motor and is rotated when the motor is t... | 06/20/2006 |
| 7051649 | Collapsible barbecue grill assembly A collapsible barbecue grill assembly has a top rack (20), a leg assembly attached under the top rack (20) and a foldable charcoal container (30) mounted on the top rack (20). The leg assembly is combined by means of wedging without using... | 05/30/2006 |
| 7021774 | Projector arrangement The invention provides a projector arrangement (1) in which an objective cover unit (6) for covering a light exit portion or surface (4e) of an objective unit (4) is adapted to serve as a support or bearing (8) for a project... | 04/04/2006 |
| 7007771 | Collapsible stool A collapsible stool to provide additional height for small children undergoing toilet training, comprising: a substantially horizontal top plate of generally rectangular shape with an upper surface and a lower surface; four protrusions integral with the lower plate ... | 03/07/2006 |
| 6923416 | Adjustable device with a musical keyboard stand An adjustable device includes a first disk mounted on a side of the first stand to have a finger hole to movably receive therein a finger, a second disk mounted on a side of the second stand to combine the first disk and having multiple adjusting holes defined in a ... | 08/02/2005 |
| 6889465 | Rifle mount A rifle mount includes two support legs that are pivotally connected together and which rest on a hunter's thighs to support a rifle in a ready position. The hunter merely moves the rifle into a shooting position when executing a shot, and can aim the rifle by movin... | 05/10/2005 |
| 6814010 | Interlocking knockdown furniture with upright locking protrusions Knockdown furniture including a table with flat, interlocking, planar parts assembled or disassembled without tools or fasteners. Planar legs oriented in radially, spaced apart, mutually abutting relation upon erection, compressively grasp and support an elevated to... | 11/09/2004 |
| 6783305 | Offshore structure support A pile based braced caisson structural support device includes a number of legs. These legs are configured in a teepee type configuration such that the footprint of the base is larger than the footprint of the opposing end. This structural support can be used as a b... | 08/31/2004 |
| 6722618 | Foldable support frame for supporting cutting machine A foldable support frame for supporting a cutting machine comprises two opposing pairs of leg frames each of which comprises a pair of first crossed legs and second crossed legs that are pivotally connected together. Where the first and second crossed legs cross, tw... | 04/20/2004 |
| 6715724 | Adjustable support for a fireplace An adjustable support structure for a fireplace including upper and lower bars extending in a longitudinal direction, the upper bar being positioned above the lower bar and including a surface upon which the fireplace can rest. First and second cross bars are also i... | 04/06/2004 |
| 6615746 | Jointed, interlocking knockdown furniture Knockdown furniture comprising flat, interlocking, planar parts assembled or disassembled without tools or fasteners. A flat top is supported above ground. A plurality of identical, generally C-shaped legs operatively oriented in radially, spaced apart re... | 09/09/2003 |
| 6554359 | Sprung vehicle seat A sprung vehicle seat has a base member and a top member, and a scissor support assembly operatively disposed therebetween. The scissor support assembly comprises first and second pivotably interconnected scissor levers. Secured to the first scissor lever... | 04/29/2003 |
| 6450464 | Satellite dish stand A satellite dish stand for providing a transportable stabile base for mounting a satellite dish. The satellite dish stand includes a pipe member with a lumen extending between an upper end and a lower end such that the upper end is designed for receiving ... | 09/17/2002 |
| 6311857 | Stand using hockey stick supports A stand for supporting items, such as clothing or recreational equipment, is formed of three or four hockey stick-shaped supports, which are fastened to the sides of a block, with the curved striking surfaces at the top. If three supports are used, the bl... | 11/06/2001 |
| 6244606 | Fixing safety-control device for a collapsible child walker A fixing safety-control device for a collapsible child walker is composed by a pressing article and an integral stopping board. On one reinforcing rib near the end of the sliding groove in the base member is provided with a crooked groove. The inserting s... | 06/12/2001 |
| 6174266 | Playground equipment A play and climbing equipment structure including a support structure with at least three sloping beams that form a vertex where the three beams meet, and that form a polyhedral shape having a triangular shaped bottom. At least one flexible planar surface... | 01/16/2001 |
| 6146050 | Method and apparatus for rotatably coupling and erecting tripods for tepees A coupling device for rotatably coupling poles of a tepee tripod. A first clamp clamps onto an upper end of a first pole. A second clamp clamps onto an upper end of a second pole. A third clamp clamps onto an upper end of a third pole. First and second ro... | 11/14/2000 |
| 6135413 | Rear leg support for easel or the like A tripod easel support device comprising a pair of relatively inwardly inclining bracing elements each joined together at one end at an apex, the apex including a leg-receiving recessed portion conforming to the rear leg profile to receive the rear leg of... | 10/24/2000 |
| 6135557 | Foldable stool The foldable stool has a triangular shaped seat with three upper legs attached to the corners of the seat. A leg holder is attached to the bottom portion of each upper leg. Lower legs are inserted into the leg holders. The foldable stool may also have add... | 10/24/2000 |
| 6092769 | Breast prosthesis protective cradle A portable and collapsible cradle for supporting any shaped breast prosthesis such as but not limited to a triangular shape, a teardrop shape and an asymmetrical shape in a natural nondeformed state. The platform has upside down U-shaped rods pivotally co... | 07/25/2000 |
| 5934641 | Collapsible nursery stand Collapsible nursery stand comprising a pair of scissor action side frames each comprising a pair of limbs (6, 8) from upper regions of which U-shaped link members depend which swingingly support a carry-cot (36) or the like. The link members may be interc... | 08/10/1999 |
| 5876091 | Collapsible tripod stool A collapsible tripod stool (16) which comprises three legs (18) with a structure (20) for crisscrossing the legs (18) together. A flexible seat (22) is also provided. A facility (24) is for attaching the flexible seat (22) onto flattened curved top ends (... | 03/02/1999 |
| 5551178 | Collapsible sign A collapsible sign includes a flexible banner supported by a collapsible stand. The collapsible stand, of A-frame configuration, includes two pairs of legs at each end of a cross-member, the apex of each leg pair and cross-member end retained in a unique ... | 09/03/1996 |
| 5360194 | Support assembly for optical equipment An assembly having a plurality of elongate feet for supporting optical equipment. The feet are attached to the optical equipment by a fastener. A plurality of alternate carrier holes or an H-shaped aperture are provided in each foot so that, with the fast... | 11/01/1994 |
| 5322250 | Foldable support leg assembly A foldable support leg assembly wherein a depending leg is pivotally connected to a pair of fixedly connected bent pair of legs positioned in back-to-back relationship to form a hyperbolic configuration having a pair of upwardly divergent arm portions and... | 06/21/1994 |
| 5186372 | Combination backpack and stool A combination backpack and stool is provided with a frame having a seat-defining member upon which a user may sit, a ground-engageable member for supporting the frame upon a surface, and an upright pedestal member rigidly coupled to and between the seat-d... | 02/16/1993 |
| 5044507 | Collapsible drying rack A collapsible rack for drying clothing and other articles is comprised of a plurality of leg members pivotally mounted on a core member and held thereon by an elastic band member which encircles them intermediate upper and lower ends. The core member is p... | 09/03/1991 |
| 5029795 | Camera support stand A camera stand comprising an inverted tripod cradle and a bowl-shaped camera mount adapted to be carried in the cradle.... | 07/09/1991 |
| 4984761 | Electric fan cross-shaped base An electric fan cross-shaped base comprising a round base body and a plurality of horizontal feet removably assembled with the base body so as to save packing cost and freight.... | 01/15/1991 |
| 4828208 | Vertically adjustable table with retractable caster assembly A table is provided with a single retractable caster to facilitate manually transporting the table from one location to another. The retractable caster is located substantially directly below the center of gravity of the table, so that when the caster is ... | 05/09/1989 |
| 4826125 | Folding easel A folding easel wherein there is an articulated joint between the upper ends of the legs and a further articulated joint between support arms and a central leg. Each articulated joint includes a ball and socket arrangement with there being a loop of elast... | 05/02/1989 |
