Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 8071491 | Process, composition and coating of laminate material A laminated composite material is provided. The material has first and second layers. The first layer is composed of a fibrous material and a binder, and the second layer is composed of a woven material and a binder. ... | 12/06/2011 |
| 7264645 | Plate-shaped filter element A plate-shaped filter element made from several wire cloth layers and having at least one layer in the form of a filter cloth is designed to allow particles of a certain size can be filtered out from a filterable material, whereby, in particular, particles can be fi... | 09/04/2007 |
| 6602810 | Method for alleviating residual tensile strain in thermoplastic welds Thermoplastic welding is an emerging technology targeted at significantly reducing the manufacture of aerospace structure by eliminating fasteners and the touch labor associated with fasteners to prepare, install, and inspect the assemblies. Thermoplastic... | 08/05/2003 |
| 6040250 | Multi-layer thermoformable laminates and methods of their manufacture Thermoformable multi-layer sheet products are manufactured by pressure laminating one or more molten polymeric films and superposed layers of glass cloth material such that the molten polymer impregnates the glass cloth layers.... | 03/21/2000 |
| 5776567 | Multi-layer filter for separating solid and liquid waste A flexible, multi-layer filter for separating solid and liquid wastes. In a preferred embodiment, the filter includes first, second, third, and fourth layers, interconnected by appropriately spaced connectors. The first layer comprises sub-layers of paral... | 07/07/1998 |
| 5686155 | Hollow cylindrical member A main body of a hollow cylindrical member is formed of a wound preimpregnation sheet made of reinforcing fibers impregnated with synthetic resins. A synthetic resins layer with a metallic member is provided onto an outer periphery of the main body for re... | 11/11/1997 |
| 5431995 | Sheet molding compound A light weight molding compound comprises an inner layer constituted by a thermosetting resin including a hollow filler, cloth layers constituted by woven or non-woven fabric adhered on the both surfaces of the inner layer, and surface layers constituted ... | 07/11/1995 |
| 5296287 | Single membrane insulation material A single membrane insulation material comprising a flexible fluoropolymer coated substrate, an insulating material laminated to one side of said substrate, and an anti-porosity fluid barrier associated with said substrate and shielded by said insulating m... | 03/22/1994 |
| 5073438 | Process for the preparation of laminates A laminate prepared by combining at least two layers wherein at least one of which is made of a fibrous material, an epoxy resin having on average at least two 1,2-epoxide groups per molecule or a mixture of these epoxy resins and a ferrocene derivative o... | 12/17/1991 |
| 4876142 | Fluid resistant coating composition A fire-retardant, fluid-resistant coating composition having enhanced bonding strength and increased aesthetic appeal. The composition, comprising from 3-4 parts of a liquid acrylic emulsion, from 1-2 parts of a liquid latex polymer suspension, from 1-3 p... | 10/24/1989 |
| 4842923 | Ballistic materials The present invention provides a fiberglass composite which possesses outstanding armor properties. This ballistic resistant composite material employs a high strength magnesia aluminosilicate glass fabric and a prescribed phenol formaldehyde condensation... | 06/27/1989 |
| 4806416 | Insulating coating Insulating coatings are disclosed which include an inner layer of glass fabric impregnated with a binding agent supporting particles of mica, followed by two additional layers, of either polytetrafluoroethylene or glass fabric, which readily adhere to eac... | 02/21/1989 |
| 4462831 | Fire and heat protection material of ablative type The present invention relates to a fire and heat protection material of ablative type. According to the invention an organic binder is mixed with a filler consisting of hydrated aluminum sulfate of the general formula Al2 (SO4)3... | 07/31/1984 |
| 4444823 | Fiber reinforced composite article using modified polyimide adhesive Modified polyimide adhesives useful for high efficiency bonding at moderate temperatures. Basically, the adhesives are prepared by reacting suitable quantities of an oxime, an aromatic tetracarboxylic acid dianhydride and an aliphatic tetracarboxylic acid... | 04/24/1984 |
| 4400425 | High impact chemically activated polyester fiber reinforced plastic composite A reinforced plastic composite structure is disclosed which includes a fiberglass reinforced plastic structure wherein adhesive-activated thermally stabilized polyester fibers are included affording highly improved impact resistance.... | 08/23/1983 |
| 4330586 | Means and method of restoring documents, paintings and the like An improved technique for the restoration of paintings, documents and the like and in particular an improved apparatus for and associated method of lining a painting or document to restore and preserve the original texture thereof. For paintings with good... | 05/18/1982 |
| 4230764 | Prestressed article Thermoforming, utilized for making articles from sheets of thermoplastic ins, does not readily yield articles having desired strength properties. Using both thermoplastic and thermosetting resins in the process results in articles embodying fabrication s... | 10/28/1980 |
| 3974314 | Electrical insulation particularly for use in winding slots of dynamo-electric machines and method for its manufacture A laminated molded insulation material for insulation of electrical machines and particularly useful for conductor slot insulation of dynamo-electric machines is produced by covering both sides of a dielectrically strong, homogeneous electrically insulati... | 08/10/1976 |
