"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 |
| 8122536 | Bed with collapsible frame A frame including a plurality of connector assemblies and a cross-support unit coupled between the plurality of connector assemblies. The cross-support unit is movable between a folded configuration and an expanded configuration. The cross-support unit defines a sub... | 02/28/2012 |
| 7757314 | Collapsible structure A collapsible structure is movable between an expanded configuration and a collapsed configuration. The collapsible structure includes a plurality of collapsible scissor assemblies. Each scissor assembly includes a first frame member pivotally coupled to a second fr... | 07/20/2010 |
| 7406727 | Foldable foundation for a mattress A foldable bedding foundation comprising a first section is hingedly secured to a second section so that the bedding foundation may be folded for storage or transportation purposes. Each section has base, a plurality of wire struts pivotally secured to the base, an ... | 08/05/2008 |
| 7376986 | Collapsible bed frame A collapsible bunk bed is provided having a first and second bed frame, one of which is positioned vertically above the other to form the bunk bed. The end walls of each bed frame have a hinged joint in the central portion so that the bunk bed may be folded into a c... | 05/27/2008 |
| 7376988 | Foldable bedding foundation A foldable bedding foundation comprising a first section is hingedly secured to a second section so that the bedding foundation may be folded for storage or transportation purposes. Each section has base, a plurality of wire struts pivotally secured to the base, an ... | 05/27/2008 |
| 7272865 | Support and method of using the same An apparatus or support having a frame that can be disposed in an expanded configuration and a collapsed configuration. The frame includes a first end portion, a second end portion, a first side portion, a second side portion, and several connectors. Each of the con... | 09/25/2007 |
| 7114205 | Collapsible bed frame A collapsible bed frame (18) for supporting a mattress, the collapsible frame (18) having a number of frame members (32). A number of pivots (34) connect pairs of the frame members (32) at the midpoints of the frame members (32 | 10/03/2006 |
| 7093310 | Beddress A beddress. Under one embodiment, a beddress includes an upper fabric portion sized and shaped to cover an upper surface of a top mattress structure and a lower fabric portion sized and shaped to cover at least three side surfaces of a bottom mattress structure. The... | 08/22/2006 |
| 6584627 | Webbed frame for furniture A webbed frame includes a plurality of first and second straps mounted on a frame body to form a net. Each of the first and second straps has two opposite end sections trained on the frame body. A plurality of spaced apart retainers are fixed on the frame... | 07/01/2003 |
| 6581223 | Foldable frame assembly A foldable frame assembly includes a plurality of parallel frame members, each of which has left and right columns. A plurality of coupling units are alternately disposed with the frame members, and each includes first left and right connecting rods and s... | 06/24/2003 |
| 6237169 | Foldable trampoline A foldable trampoline having a jump cloth, a plurality of pull rods secured to cloth ears extending around the jump cloth, a frame having a plurality of hook holes formed on a top surface thereof, a plurality of spring elements engaged with the pull rods ... | 05/29/2001 |
| 6108839 | Mechanized foldable bed A mechanized foldable bed is disclosed. The foldable bed has a front frame assembly and a rear frame assembly pivotal with respect to the front frame assembly. The foldable bed has a motor securely mounted under the bed, a driving rod driven by the motor,... | 08/29/2000 |
| 6076210 | Mechanized foldable bed A mechanized foldable bed is disclosed. The foldable bed has a front frame assembly and a rear frame assembly pivotal with respect to the front frame assembly. A motor is securely mounted under the bed, a driving rod is driven by the motor, a first connec... | 06/20/2000 |
| 6035467 | One-piece compact folding bed A compact folding bed having a symmetry plane comprising a pair of symmetrical frames wherein each base support element is covered with filling materials and enveloped within a fabric or leather casing to also form the mattress of the folding bed. The fol... | 03/14/2000 |
| 6035468 | Folding bed with detachable legs A folding bed having a three section mainframe, a swinging left frame, a swinging right frame, these swinging frames hingedly attached on each end of a third stationary section at a mid portion of the mainframe. Foldaway legs are each hingedly connected n... | 03/14/2000 |
| 6009575 | Foldable bed assembly A foldable bed assembly includes a mattress, a mediate supporter, a front frame having a first end pivotally connected to the mediate supporter, and a rear frame having a first end pivotally connected to the mediate supporter. A head frame is securely att... | 01/04/2000 |
| 5608930 | Foldable bed A foldable bed includes a pair of legs arranged between a head member and a foot member. Four pairs of pivot axels are arranged between and coupled to the members and the legs by four pairs of links. Two pairs of frames are pivotally coupled between the l... | 03/11/1997 |
| 5568658 | Convertible bed-chair assembly A convertible bed-chair assembly comprises first and second solid assembly members which fit together in two different configurations. Corresponding planar surfaces of the members each include a cavity therein which is formed by an internal wall of the co... | 10/29/1996 |
| 5386601 | Folding bed The rectangular bed frame (1) of a folding bed is composed of two substantially symmetrical elements (2, 3), which are interconnected by hinges (4) in the symmetry plane lying between the two narrow sides (6) of the bed frame (1), so that they can fold on... | 02/07/1995 |
| 5216769 | Foldable bed A foldable bed with sound generating capabilities comprising: a lower assembly formed of a leg section and a body section, a linear hinge coupling the sections for movement between an open orientation and a closed orientation, the lower assembly also incl... | 06/08/1993 |
| 5090071 | Transportable and foldable articulated bed A transportable and foldable articulated bed with a non-positively driven articulated mattress platform that reduces the risk of injury and permits the bed to be folded for transport without disconnecting platform drive systems. The mattress platform is a... | 02/25/1992 |
| 4858258 | Mattress and supporting structure therefor A mattress is positioned on a flexible deck which is supported by tension members connected to a frame. In a preferred embodiment, the frame is formed of concave side rails, a horizontal head rail, and a horizontal foot rail. The upper surface of the deck... | 08/22/1989 |
| 4788727 | Collapsible base for beds A collapsible bed base is disclosed to support a bed mattress. The bed base comprises a foldable peripheral frame, removable cross-support joist members extending across the frame and removable top decking panels supported by the frame and across-support ... | 12/06/1988 |
| 4366586 | Ottoman roll latch mechanism A folding bed mechanism, such as, for example, a convertible ottoman, has a plurality of pivotally connected bed sections, including a base section supported on rollers or the like. The bed sections are adapted to unfold into a straight line and to fold i... | 01/04/1983 |
| 4048683 | Space-saving folding bed This invention relates to folding beds and aims at correcting certain shortcomings of all other folding beds. The invention contains the mechanism of a Space-saving Folding Bed the legs of which at both ends automatically unfold when the bed is unfolded f... | 09/20/1977 |