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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 |
| 7185690 | Information presentation device An information presentation device and methods for mounting a display sheet to the device. The device includes an elongate housing having a first opening through which the display sheet passes. The display sheet is wound onto a drum within the housing. A releasable ... | 03/06/2007 |
| 7159637 | Impactable bottom curtain for a rolling steel door To avoid repeated damage to a lower section of a metal roll-up door, the lower section is replaced by a more impactable curtain assembly. The curtain assembly is so readily scalable, horizontally and vertically, that much of it can be manufactured and field assemble... | 01/09/2007 |
| 6942005 | Self-opening enclosure A shade includes a frame member being formed from a flexible twistable material and a membrane. The shade includes a strap coupled to two ends of the membrane. ... | 09/13/2005 |
| 6866082 | Templates and kits for creation of hanging products Methods and kits for providing a consumer with the ability to easily convert an item of material into a hanging product, such as a window or shower curtain. The consumer can purchase an item of fabric to his or her liking, and use the kit for conversion of the fabri... | 03/15/2005 |
| 6715532 | Window screen A window screen includes a screen sheet with two opposite outer side surfaces. The screen sheet includes a pair of screen laminates, and an intermediate bonding layer. Each screen laminate has a first surface facing the other screen laminate, and a second surface op... | 04/06/2004 |
| 6655444 | Roll out shower curtain and the use thereof as an advertising display for the hospitality industry A method of advertising in a shower for the hospitality industry including providing replaceable advertisements on a shower closure, for example a door, curtain or the like.... | 12/02/2003 |
| 6206077 | Method and apparatus for making image ladened louvered blinds A method and apparatus for making image ladened louvers having a louver bracket support system from which a plurality of louvers depend, each louver having a substantially flat elongated panels with an outer face, the outer faces of the panels forming a c... | 03/27/2001 |
| 6155325 | Portable display board A portable display board (10) is disclosed. The portable display board (10) comprises a center portion (12), a left portion (14) hingedly attached to the center portion (12) and a right portion (16) hingedly attached to the center portion (12). Also inclu... | 12/05/2000 |
| 5421395 | Swinging-and-sliding door for vehicles, especially mass-transit vehicles A swinging-and-sliding door for vehicles which opens in two mutually perpendicular steps, a first step wherein it bends out of a doorway-closed position and into a ready-to-slide position and a second step wherein it slides aside horizontally into a doorw... | 06/06/1995 |
| 4922600 | Method for hanging curtains A window cornice assembly having a semi-circular front plate formed with an upper edge having an upper channel and a lower edge having a lower channel. A lower curtain rod is slidably disposed through the lower channel and an upper curtain rod is slidably... | 05/08/1990 |
| 4878531 | Wall covering support structure and method Structure and a method for applying cover material to a wall. A support strip is attached to the upper portion of a wall, and a support strip is attached to the lower portion of the wall. Each of the support strips is substantially flat and includes space... | 11/07/1989 |
| 4856575 | Window assembly for segmented structure A window for a segmented edifice utilizing three frames, each having a plurality of openings through the same. The first two frames sandwiched the segmented edifice and are held in such configuration by a multiplicity of fasteners. A third frame having a ... | 08/15/1989 |
| 4818590 | Wood veneer covered structural rigid plastic foam elements A decorative structural element suitable for making venetian type window blinds, room dividers, furniture panels, room and furniture decorations and the like are disclosed. The element comprises a structurally stable, resilient, rigid plastic foam substra... | 04/04/1989 |
| 4539239 | Window shade, and method apparatus for manufacturing same A window shade which includes a sheet member formed from a material having the characteristics, with respect to strength, formability and shape retention, of plastics, which sheet member, by reason of the formation of one or more continuous cut lines, the... | 09/03/1985 |
| 4006770 | Window shade assembly A retractable window shade is disclosed employing slidably adjustable roller assembly and bottom slat, and a sheet of material having tear lines parallel to one edge and extending for the full length thereof.... | 02/08/1977 |
