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 |
| 7988573 | Device and method for controlling belt-type continuously variable transmission A control device includes an arrangement for deriving an input torque input to a belt-type continuously variable transmission based on a control amount of a first actuator. The continuously variable transmission includes a first actuator that is provided on a one mo... | 08/02/2011 |
| 7927241 | Driven pulley for a continuously variable transmission The driven pulley (10) comprises a first sheave (12) and a second sheave (40) coaxially mounted around a main shaft. The first sheave (12) is fixed with reference to the main shaft while the other sheave (40) is allowed to slide an... | 04/19/2011 |
| 7901308 | Pulley for a continuously variable transmission A pulley for a continuously variable transmission is provided with a fixed half-pulley fitted on a supporting shaft and a mobile half-pulley, which is able to slide towards the fixed half-pulley under the thrust of a spring, so as to define a V-shaped race of variab... | 03/08/2011 |
| 7850555 | Apparatuses and methods for controlling a variable speed transmission Apparatuses and methods are disclosed for controlling a variable speed transmission including an actuator, a cam follower, and a speed adjustment cam. The actuator is rotatable through a first phase and a subsequent second phase, and includes an actuator cam surface... | 12/14/2010 |
| 7731613 | V-belt type continuously variable transmission, saddle-ride type vehicle, and method of manufacturing the V-belt type continuously variable transmission A stationary sheave half of a V-belt type continuously variable transmission (CVT) comprises a primary sheave mounted to a primary sheave shaft and a secondary sheave mounted to a secondary sheave shaft. The stationary sheave half of the secondary sheave comprises a... | 06/08/2010 |
| 7674197 | Continuously variable transmission driven-pulley cam having three cam surfaces and roller therefor A continuously variable transmission driven-pulley cam having a third cam surface which decreases the travel distance of the roller preventing the drive belt from dropping to a lower radius, thus preventing the transmission from going into a higher gear ratio upon i... | 03/09/2010 |
| 7361108 | Continuously variable transmission A continuously variable transmission with two conical disk pairs on the input side and two conical disk pairs on the output-side that are connected with each another by two parallel endless torque-transmitting members in a drive mechanism. In one form of the transmi... | 04/22/2008 |
| 7351169 | Utility machinery and associated control arrangements A power transmission device for utility machinery is disclosed, the device including: a) a sleeve supporting a first sheave member having a first face; b) a hub received through the sleeve and moveable axially in relation thereto, the hub supporting a second sheave ... | 04/01/2008 |
| 7338398 | Continuously variable transmission or clutch with ortho-planar compliant mechanism A continuously variable transmission or clutch device (10) includes at least one pulley (18) rotatable on a pivot (28) and having a pair of adjustable sheaves (30, 34) including a movable sheave (30) movable along the pivot. An ort... | 03/04/2008 |
| 7331889 | Apparatuses and methods for controlling a variable speed transmission Apparatuses and methods are disclosed for controlling a variable-speed transmission utilizing a pulley structure including first and second pulley members coupled for free rotation together about a shaft. The second pulley member can be axially movable relative to t... | 02/19/2008 |
| 7300370 | Clutch system for belted constant velocity transmission A clutch for a belted transmission comprises a sheave, a first torque ramp member, a second torque ramp member, a drive ring and an electromagnet. The first torque ramp member is attached to the sheave and has a ramp face. The second torque ramp member is spaced apa... | 11/27/2007 |
| 7276003 | Vertical band saw machine with a speed ratio varying device A vertical band saw machine includes a first transmitting shaft driven by a drive force of a motor, a second transmitting shaft journaling a lower blade mounting pulley for rotating an endless band saw blade, and a speed ratio varying device coupling the transmittin... | 10/02/2007 |
| 7264564 | Cone disc infinitely-variable gearbox A cone disc infinitely-variable gearbox including a shaft, a cone disc preferably embodied in one piece with the shaft, a cone disc connected to the shaft in a non-rotating axially-displaceable manner, a bearing ring axially fixed onto the shaft at a separation from... | 09/04/2007 |
| 7241238 | Device for controlling contact pressure in a continuously variable transmission The invention relates to a device for controlling the contact pressure of a transmission element of a continuously variable transmission, especially the traction element of a flexible drive for motor vehicles. The inventive device is provided with at least two lever... | 07/10/2007 |
| 7204771 | Bidirectional continuous power transmission system A bidirectional continuous power transmission system, characterized by a projecting bolt moving within a guiding opening with a rear wall and a front wall. Upon a rotating movement, the projecting bolt exerts a force on the rear wall or the front wall, depending on ... | 04/17/2007 |
| 7179183 | Pulley for a continuously-variable-ratio drive A pulley for a continuously-variable-ratio drive, having a fixed half-pulley fitted to a shaft of the drive; a movable half-pulley mounted to slide axially with respect to the fixed half-pulley to define with it a V groove of variable size for a V belt; and a torque... | 02/20/2007 |
| 7131921 | Belt-driven conical-pulley transmission A continuously variable transmission having two pairs of conical disks operatively connected by an endless torque-transmitting belt. One of each of the disk pairs is axially movable relative to the other along a supporting shaft. The movable disk includes an inner t... | 11/07/2006 |
| 7128061 | Supercharger A centrifugal supercharger is provided. One embodiment of the supercharger comprises a two-piece housing wherein a parting area is substantially aligned with a rotational axis of a drive- or impeller shaft. Another embodiment comprises a sleeve, or intermediate memb... | 10/31/2006 |
| 7090600 | Driver pulley system for use in torque converter A driver pulley system for use in a torque converter comprises a torque transmission device. The torque transmission device is used to transmit torque between components of the driver pulley system. ... | 08/15/2006 |
| 7083242 | Endless flexible track with reinforcing layers for all-terrain vehicles An endless flexible belt track produced from an elastomer comprises a steel cable (30) spirally wound in the thickness of the belt (12) and outer layers embedded in the thickness of the belt and formed successively from the turns (34) of the cab... | 08/01/2006 |
| 7081057 | Driven pulley system with removable cam A driven pulley system for use in a torque converter of a vehicle is disclosed. The driven pulley system includes a cam. The cam is arranged to be removed from the driven pulley system for replacement of the cam. ... | 07/25/2006 |
| 7063633 | Driving pulley for a continuously variable transmission The driving pulley comprises two centrifugal mechanisms, namely a positive assembly and a negative assembly. Both assemblies comprise a respective set of flyweights subjected to the centrifugal force when the driving pulley rotates. The positive assembly is used as ... | 06/20/2006 |
| 7044872 | Methods and apparatus for providing reverse drive in a recreational vehicle A vehicle with a continuously variable transmission (continuously variable transmission) includes a torque responsive clutch having a cam and at least one coupling. The cam has a plurality of projecting surfaces, and a plurality of slots being defined between the pr... | 05/16/2006 |
| 7037225 | Automatic V-belt transmission A V-belt type of automatic transmitting mechanism includes a drive pulley and a V-belt, and the drive pulley includes a fixed sheave which is fixed to a drive shaft and a movable sheave which is movable in a direction of the drive shaft. When the drive shaft rotates... | 05/02/2006 |
| 7037226 | Dual cam surface clutch A belt-driven clutch system having a driven clutch with a particular arrangement of cam followers and cam slots. One embodiment of the invention is a clutch having a fixed sheave, a movable sheave and a housing mounted to the movable sheave. The housing has a cam sl... | 05/02/2006 |
| 7029408 | Variable speed transmission and method of use A variable speed transmission includes an actuator mechanism that can be remotely activated to cause engagement of a drive unit and to subsequently vary the speed of the drive unit using the same activation mechanism. The variable speed transmission can include a fi... | 04/18/2006 |
| 6997833 | Double-sided sliding button for use in a continuously variable transmission The double-sided sliding button comprises two spaced-apart sliding button halves configured and disposed with reference to a curved medial axis. Each half has a front side, provided with a contact surface, and a rear side. Both contact surfaces are mutually opposite... | 02/14/2006 |
| 6994643 | Driven pulley system with spring positioner A driven pulley system for use in a torque converter of a vehicle is disclosed. The driven pulley system includes relatively axially movable first and second flanges arranged to squeeze a belt of the torque converter therebetween. The driven pulley system also inclu... | 02/07/2006 |
| 6958025 | Belt tensioner for use with torque converter A belt tensioner for use with a torque converter to adjust the overall speed of a vehicle is disclosed. The belt tensioner includes motion transmitting fixed unit configured to be fixed to a vehicle output shaft for movement therewith and a belt tensioning movable u... | 10/25/2005 |
| 6953400 | Driven pulley system for use in torque converter A driven pulley system for use in a torque converter of a vehicle is disclosed. The driven pulley system includes a motion-transmitting fixed unit and a belt-tensioning movable unit. The fixed unit is arranged to be fixed to a rotatable output shaft of the vehicle f... | 10/11/2005 |
| 6949039 | Driven pulley for a continuously variable transmission The driven pulley comprises a first sheave and a second sheave coaxially mounted around a main shaft. The first sheave is fixed with reference to the main shaft while the other is allowed to slide and rotate with reference to the main shaft. The driven pulley is des... | 09/27/2005 |
| 6908412 | Control apparatus for continuously variable transmission When an operator takes his foot from an accelerator pedal, a returning speed of the accelerator pedal is calculated from a signal of an accelerator sensor. In case where the returning speed is larger than a reference value, it is judged that the operator intends to ... | 06/21/2005 |
| 6860826 | Continuously variable transmission with two piece cam A vehicle with a continuously variable transmission (continuously variable transmission) includes a torque responsive clutch having a cam and at least one coupling. The cam has a plurality of projecting surfaces, and a plurality of slots being defined between the pr... | 03/01/2005 |
| 6786844 | Contact pressure regulation system The invention relates to a contact pressure system, that can be utilized particularly for continuously variable transmissions, with a torque sensor system as well as a continuously variable transmission. ... | 09/07/2004 |
| 6758775 | Bevel gear unit Provided is an infinitely variable cone pulley transmission for which the contact pressure between the cone pulley pairs and the traction is generated hydraulically on one transmission side and mechanical, with the aid of a spring, on the other transmission side. Th... | 07/06/2004 |
| 6755759 | Speed transmission for self-propelled lawnmower and mower provided with such a transmission The invention relates to a speed transmission for a mower, in particular a lawnmower, comprising a speed changer. This transmission is characterized in that the speed changer is constituted by a transmission with a belt (5) between a drive pulley (6) m... | 06/29/2004 |
| 6743129 | Clutch with no relative rotation A driven element (100) has a first sheave (13) and a second moveable sheave (9). The sheaves (9 and 13) are rotatably tied together so that there is no relative motion between the two sheaves (9 and 13). ... | 06/01/2004 |
| 6733406 | Variable-speed V-belt drive for vehicle A variable-speed V-belt drive includes: a drive pulley; a driven pulley including a fixed sheave with a cylindrical shaft and a movable sheave mounted on the cylindrical shaft so that the movable sheave can rotate and axially move; a V belt extended between the driv... | 05/11/2004 |
| 6669588 | Continuously variable transmission with integrated torque sensor A continuously variable transmission including two pairs of conical disks of which one disk of each pair is axially movable toward and away from the other disk and having an endless loop member in the form of a belt that passes around each pair of disks a... | 12/30/2003 |
| 6569043 | Clutch with a one-way torque carrying bearing A one-way bearing or clutch is provided to decouple a continuously variable transmission from the final drive member during reverse torque conditions.... | 05/27/2003 |