"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 |
| 7350321 | Shoe upper and methods of manufacture The present invention relates to a shoe and the manufacture thereof that includes an inner shoe with an upper side and a lower side and a stitch-free shell. The stitch-free shell encompasses the upper side of the inner shoe. The shell may be produced in two or more ... | 04/01/2008 |
| 7347011 | Article of footwear having a textile upper An article of footwear and a method of manufacturing the article of footwear are disclosed. The footwear may include an upper and a sole structure. The upper incorporates a textile element with edges that are joined together to define at least a portion of a void fo... | 03/25/2008 |
| 7328527 | Shoe strap changing system The shoe strap changing system of the present invention consists of a base shoe, which includes an upper and a sole. The sole includes a slot, which has a height, a width extending from near the heel portion of the sole across the middle portion of the sole toward t... | 02/12/2008 |
| 7124519 | Shoe sole having improved flexibility and method for making the same The invention relates to a sole and method for making the sole having a first material and a second material. The first material includes a plurality of extensions and the second material includes a plurality of sections, where each section is spaced apart from an a... | 10/24/2006 |
| 7051460 | Light weight shoes A shoe including an upper material using a double raschel warp knitted fabric is provided. The upper material includes a first surface having a non-mesh structure and a second surface having a non-mesh structure part (A) and mesh structure parts (B, C). The burst st... | 05/30/2006 |
| 6952990 | Land mine overpass tread design A land mine pressure fuse avoidance system has a base. A tread on the base contacts the ground around a land mine and independently distributes pressures around the ground. The tread has plural independent closed cell foam rubber elements. Each element is separated ... | 10/11/2005 |
| 5992052 | Vapor permeable shoe with improved transpiration action A vapor-permeable shoe which includes an upper, a tread made of elastomer, shaped so as to form a plurality of domes whose convexity is directed toward the ground, each dome having at least one minute through slit which is normally closed due to the elast... | 11/30/1999 |
| 5937542 | Internal liner for a sport boot A foot covering liner for a sport boot. The liner includes a sole, an upper, and a tightening device to tighten the liner on the foot. The sole and the liner of the liner are made of materials having a low resistance to tensile stress. Further, the tighte... | 08/17/1999 |
| 5926977 | Protective footgear Protective footgear consisting of a multilayered material shaped into an overshoe that protects the foot and lower leg of the wearer from injury due to exploding land mines. In a preferred embodiment of the invention, the overshoe includes a heat-resistan... | 07/27/1999 |
| 5878512 | Protective overshoe A protective overshoe which reduces the risk of injury from industrial impact, compression, chemical, puncture, and electrical hazards and simultaneously protects both a foot and a street shoe worn by the foot is described. The overshoe may include a prot... | 03/09/1999 |
| 5872182 | Water-based polyurethanes for footwear A water-based sulfonated polyurethane composition and footwear manufactured using the composition as as an adhesive, coating and primer. The sulfonated polyurethane is a reaction product of a) at least one polyisocyanate; b) at least one alkylene diol; c) at l... | 02/16/1999 |
| 5843851 | Composites A flexible composite comprising a high tensile strength fibrous component dispersed within a flexible or resilient polymeric matrix, the matrix and fibrous component being essentially unbonded to each other so that the composite retains essentially the fl... | 12/01/1998 |
| 5765297 | Protective overshoe A protective overshoe which reduces the risk of injury from industrial impact, compression, chemical, puncture, and electrical hazards and simultaneously protects both a foot and a street shoe worn by the foot. The overshoe may include a protective sole, ... | 06/16/1998 |
| 5755045 | Footwear sole member A shoe member is formed of a polymer composition comprising (A) a composite material having a low molecular weight material retained in a medium material and (B) a polymer material. The low molecular weight material has a viscosity of up to 5×105 | 05/26/1998 |
| 5706590 | Sole for footwear made at least partially of vegetable fibres A sole for footwear is formed from upper and lower textile base sheets that are joined by a binder. Each of the base sheets is formed from a weft that is interweaved with a warp. The weft and the binder are made of a vegetable fiber and the warp is made o... | 01/13/1998 |
| 5681649 | Footwear member A shoe member is formed of a polymer composition comprising (A) a composite material having a low molecular weight material retained in a medium material and (B) a polymer material. The low molecular weight material has a viscosity of up to 5×105 | 10/28/1997 |
| 5495684 | Shoe with attached legging for use in a clean room A clean air shoe having a shoe bottom adapted to the size of the foot, and with a peripheral seam edge whose upper end is sewn together with a legging by means of a seam. Below this seam there runs a second seam with which an upper is connected to the sea... | 03/05/1996 |
| 5452525 | Shoe insole for absorbing humidity A shoe insole comprising a layer for holding a shape of the insole and a hygroscopic multi-layer assembly including a ground pulp hygroscopic layer for absorbing humidity in an interior of a shoe in which the insole is used whereby the humidity is convert... | 09/26/1995 |
| 5426870 | Antistatic shoe sole A shoe sole construction comprises a polyurethane outer sole having an electrical resistance of approximately 40 MOhms in a standard wet/dry test and an electrical resistance of approximately 20 MOhms in a standard wet/wet test in a test conducted accordi... | 06/27/1995 |
| 5394624 | Disposable surgical foot covering A protective foot covering for use primarily in hospital operating rooms by surgeons requiring use of surgical instruments having foot controls. The covering comprises an upper formed of a non-woven crepe material which is resistant to penetration by liqu... | 03/07/1995 |
| 5165183 | Disposable biodegradable sanitary sandal A sanitary slipper type shoe comprising a sole and an upper. The sole having a top layer, a bottom layer, and a medial layer sandwiched between the two. The top layer has a corrugated, wave like upper surface, and the bottom layer has a rough lower surfac... | 11/24/1992 |
| 5106445 | Method of manufacturing a shoe A light, comfortable, lined shoe made of soft synthetic resin that employs another more durable hot-melt bond synthetic resin in the critical heel and foot entry opening regions to prevent shape distortion over the long term is provided. An extremely simp... | 04/21/1992 |
| 5068982 | Rubber boot containing heat reflecting means A fireboot comprising a boot having a lower portion and an upper portion. An aluminized pigment compound is vulcanized to the upper portion wherein the aluminized pigment compound is comprised of a mixture of rubber, ethylene-propylene-diene monomer, styr... | 12/03/1991 |
| 4809447 | Waterproof breathable sock A multi-component, waterproof, sock-type article is provided comprising a waterproof, non-elastic, non-stretch sole component having a heel portion and a toe portion, a waterproof, non-elastic, non-stretch calf component, the calf component being attached... | 03/07/1989 |
| 4532724 | Antistatic footwear Conductive leg covers for covering the legs of a wearer of antistatic or conductive shoes are connected to the shoes. Thereby footwear is obtained which leaks static electricity safely from a wearer charged therewith, prevents the falling of dust from the... | 08/06/1985 |
| 4150455 | Method for manufacturing a footwear and footwear A method for manufacturing an instep cover section of a footwear, comprising placing an instep cover member in a molding cavity, pressure-injecting molten synthetic resin material into the cavity, and thus connecting the synthetic resin material with the ... | 04/24/1979 |