Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 7231275 | 3-D object creation system using multiple materials in multiple layers A three dimensional object creation system that prints objects layer by layer, the system including a plurality of printheads, the system printing at least part of each of multiple layers simultaneously, wherein the printheads are configured such that at least one o... | 06/12/2007 |
| 7182826 | Power transmission belt with tubular knit overcord A power transmission belt is disclosed in which the exterior of the overcord section is generally flat in contour and bears an outer seamless tubular knit textile material adhered to an adjacent rubber layer material interposed between the exterior belt back surface... | 02/27/2007 |
| 7137918 | Ribbed V-belt and method of making the same The invention relates to a ribbed V-belt having an elastomeric cover layer (1), a tension-support layer (3) and an elastomeric base body (2). The base body (2) has ribs which have an outer coating containing polymers and fibers and is fix... | 11/21/2006 |
| 7041021 | Wear resistant belts, and a process for their manufacture Endless power transmission belts and processes for their manufacture, having power transmitting surfaces comprising a wear resistant composite, which belts exhibit improved abrasion- or wear resistance, reduced noise, reduced frictional heat generation, and improved... | 05/09/2006 |
| 6962639 | Power transmission belt and a method of forming a power transmission belt A power transmission belt having an endless body with a length, an inside, and an outside. The body has cogs on at least one of the inside and outside of the body and spaced along the length of the body so as to define alternating cog crests and cog troughs. The cog... | 11/08/2005 |
| 6949211 | Means of manufacturing plural optimized cogged drive belts A multi-ribbed power transmission belt having longitudinal grooves and transverse grooves that form a plurality of cogs on the belt surface defined between adjacent transverse grooves is provided. The pitch lengths of the rows of cogs are randomized or sequenced ove... | 09/27/2005 |
| 6945892 | Power transmission belt with tubular knit overcord A power transmission belt is disclosed in which the exterior of the overcord section is generally flat in contour and bears an outer seamless tubular knit textile material adhered to an adjacent rubber layer material interposed between the exterior belt back surface... | 09/20/2005 |
| 6921572 | Transmission belts comprising a cord with at least two fused yarns A transmission belt is made of a cord, a rubber or thermoplastic matrix, and an adhesion material which is able to adhere the cord to the rubber or thermoplastic matrix. The cord is made of at least two yarns, such that a first yarn has a melting or decomposition po... | 07/26/2005 |
| 6921447 | Dynamic pitch correction in press cured power transmission belts A method for manufacturing a cured, toothed belt is carried out upon a on a belt-making machine. The method includes incrementally molding sections of the belt with tooth spacing based on an estimated pitch circumference derived from a measured inside circumference,... | 07/26/2005 |
| 6863761 | Power transmission belt using stabilized open mesh textile material in overcord for enhanced rubber penetration A power transmission belt using an open mesh textile material in the belt overcord which is stabilized with a material promoting permeation of an underlying gum rubber layer through interstices in the textile material during vulcanization of the belt. The coefficien... | 03/08/2005 |
| 6695733 | Low growth power transmission belt A power transmission belt, and more particularly a toothed power transmission belt, comprising a longitudinally extending tensile member composed of one or more carbon fiber cords, wherein the belt exhibits belt growth of not more than 0.1% based on its o... | 02/24/2004 |
| 6685785 | Synchronous drive belt with scaffold stretch fabric A belt (1), and a method of forming a belt (1), with at least one row of teeth (5) formed on at least one surface of the betling (1). To improve the tooth formation of the belting (1), and the abrasion of the belting (1), the outer surface of the teeth (4... | 02/03/2004 |
| 6659898 | Molded part An endless belt, comprising a molding in the shape of an endless belt obtained by mixing a crystalline resin having at least one hydroxyl group, carboxyl group or an ester linkage, an amorphous resin having at least one hydroxyl group, carboxyl group or a... | 12/09/2003 |
| 6632151 | Power transmission belt with tubular knit overcord A power transmission belt is disclosed in which the exterior of the overcord section is generally flat in contour and bears an outer seamless tubular knit textile material adhered to an adjacent rubber layer material interposed between the exterior belt b... | 10/14/2003 |
| 6612955 | Power transmission belt A power transmission belt having a compression section, a load carrying section and an outer cover layer. The outer cover layer comprises a fabric; fiber loaded stock or blended material for reinforcement. The cover layer is spliced together using a thin ... | 09/02/2003 |
| 6524417 | Method of bonding an ethylene.cndot.-olefin rubber composition and a fiber and a power transmission belt made using the method A method of bonding an ethylene.cndot.-olefin rubber composition with a fiber material. The method includes the steps of adhesion treating the fiber material with a resorcinol-formalin-rubber latex with an ethylene.cndot.-olefin elastomer la... | 02/25/2003 |
| 6497832 | Method for manufacturing a striated belt The present invention relates to a power transmission striated belt including an elastomeric matrix (21) and a lengthwise supporting structure consisting of polyamide 4.6 twisted strands (20). The supporting structure (21) is selected so that the stress-e... | 12/24/2002 |
| 6419775 | Process for manufacturing wear resistant belts Endless power transmission belts and processes for their manufacture, having power transmitting surfaces comprising a wear resistant composite, which belts exhibit improved abrasion- or wear resistance, reduced noise, reduced frictional heat generation, a... | 07/16/2002 |
| 6358609 | Processed fiber which is bondable to a rubber composition and a power transmission belt incorporating the processed fiber Processed fiber for bonding to a rubber composition. The processed fiber consists of unprocessed fiber treated with a) a first processing liquid having at least one of an isocyanate compound and an epoxy compound, b) a second processing liquid having RFL ... | 03/19/2002 |
| 5961760 | Method of producing power transmission belt A top fabric is laminated with an adhesion rubber sheet made of an unvulcanized rubber sheet, which is located on the upper side from a cord of an adhesion rubber layer and forms an upper rubber portion of the adhesion rubber layer, thereby forming a band... | 10/05/1999 |
| 5888330 | Method and apparatus for producing a power transmission belt A method of making a power transmission belt/belt sleeve, which method includes the step of providing a first mold assembly having a central axis and a circumference, providing a sheet material having first and second oppositely facing surfaces, placing t... | 03/30/1999 |
| 5858147 | Method of making a reinforcing fabric for power transmission belts A method of making a reinforcing fabric having wide angles between the warp yarns and the weft yarns by helically folding on itself a strip of fabric which has been skewed such that the angle between the warp yarns and the weft yarns is from 100°... | 01/12/1999 |
| 5843258 | Method of joining the ends of a fabric layer on a belt/belt sleeve and transferring an identifying mark thereon A method of joining a woven fabric on a power transmission belt and transferring an identifying mark thereon by providing a discrete sheet element with an identifying mark thereon, providing a woven sheet having spaced ends, abutting the spaced ends of th... | 12/01/1998 |
| 5516391 | Method and device for production of reinforced belt The present invention provides an endless belt including a reinforcing load-carrying layer which is constituted by an even number of cord-like load-carrying members (5, 6). The load-carrying members extend within the load carrying member having a load-car... | 05/14/1996 |
| 5242743 | Fiber reinforced rubber A rubber having fiber reinforcement embedded thereon. The reinforcement comprises a cylindrically braided cords of more than four and even numbered twisted yarns. Yarns are right twist oriented and left twist oriented and they are twisted in the reverse d... | 09/07/1993 |
| 5197928 | V-ribbed belt having protruding fibers A power transmission belt having a belt body defining laterally spaced, oppositely facing flank surfaces for engagement with a pulley and at least one fiber within the belt body and extending in a lateral direction. The fiber has a cross-sectional area ta... | 03/30/1993 |
| 5192382 | Method of manufacturing low-edge V-belts The present invention relates to a method of manufacturing low-edge V-belts including the steps of: forming an unvulcanized belt annular body inside out by winding respective components constituting the elongated portion, tension-resistant portion, and co... | 03/09/1993 |
| 4960476 | Method of making a belt construction and rotatable pulley combination An endless power transmission belt construction, a rotatable pulley therefor, a combination of the belt construction and pulley and methods of making the same are provided, the belt construction having opposed side edges and having an inner surface defini... | 10/02/1990 |
| 4956036 | Method of making a power transmission belt including moisturizing and grinding A method of making a power transmission belt with discontinuous fibers by forming oppositely facing friction driving surfaces by grinding such that fiber protrudes from the driving surfaces and is bent exposing lateral side portions of fiber.... | 09/11/1990 |
| 4931118 | Method of manufacturing multiribbed belts A multiribbed power transmission belt and method of manufacturing the same, wherein an unvulcanized belt preform is provided with transversely extending staple fibers in the compression section thereof. The compression section is caused to be vulcanized w... | 06/05/1990 |
| 4782575 | Method of fabricating a power transmission belt and apparatus therefor A power transmitting belt manufacture wherein belts are molded to have various cross sections. The belts are machined to a desired cross section. Each belt is entrained about drive and driven pulleys to run the belt under a preselected tension. At least o... | 11/08/1988 |
| 4773896 | Power driving V belt and the method of manufacturing same An endless power transmission V belt is provided including a longitudinal reinforcement member formed by at least one member resistant to a tensile force such as a cable, made from a material chosen from metal, glass fibers or the like having a high tensi... | 09/27/1988 |
| 4734086 | Endless power transmission belt structure A trapezoidal endless power transmission belt structure is provided which is made primarily of elastomeric material and has a pair of oppositely arranged surfaces disposed in spaced relation to define an outside and inside surface of the belt structure an... | 03/29/1988 |
| 4710251 | Process for manufacturing endless belts Virtually inextensible V drive belts are manufactured from a sleeve of rubber containing substantially longitudinal polymer stability supports by vulcanizing the sleeve on a tubular former and immediately sealing the sleeve and former inside a sleeve memb... | 12/01/1987 |
| 4534750 | Automotive V-belt An automotive V-belt used for power transmission to drive accessory units to an automotive internal combustion engine. Surface smoothing agent such as wax is dispersed in the inner material of the belt for reducing attachment of dust to the belt surface.... | 08/13/1985 |
| 4522869 | Polymeric-coated fabric layer, product utilizing the layer and method of making the same A polymeric belt construction and method of making the same are provided, the belt construction comprising a polymeric belt body and a polymeric-coated fabric layer secured to a surface of the polymeric belt body, the fabric layer comprising a fabric laye... | 06/11/1985 |
| 4415397 | Apparatus for making toothed belt A reinforced elastomeric drive belt 20 having tooth-like protuberances 21 for meshing with the teeth of a pulley is provided with reinforcing fibers 27 distributed through at least a portion of each tooth 21. Also provided is a method for building the improved... | 11/15/1983 |
| 4395298 | Method and apparatus for making toothed belts and belt made employing same A method and apparatus for making toothed belts and toothed belt made using such method and apparatus are provided wherein the belt is made primarily of polymeric material and is comprised of at least parts of a plurality of successive turns of a single h... | 07/26/1983 |
| 4376668 | Apparatus for and method of making V-belts An apparatus for making V-belts comprising a base member, a cover for the base member, a channel-like guide means carried by the base member for receiving a length of belting from a supply, first slot means cooperating with said guide means for receiving ... | 03/15/1983 |
| 4343666 | Method of making toothed belt A reinforced elastomeric drive belt 20 having tooth-like protuberances 21 for meshing with the teeth of a pulley is provided with reinforcing fibers 27 distributed through at least a portion of each tooth 21. Also provided is a method for building the improved... | 08/10/1982 |