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 |
| 7886709 | Spring start for a vehicle engine A spring assembly is mounted on a crankshaft for a vehicle. A selector mechanism for the spring assembly selectively connects the spring assembly to the crankshaft. The selector mechanism is engaged in a first position to connect the spring to the crankshaft when th... | 02/15/2011 |
| 7819105 | Power transmission mechanism between engine starting device and engine A power transmission mechanism between an engine starter and an engine capable of securely engaging the ratchet wheel of a rotatingly driven part with the lever-like engagement/disengagement member of a centrifugal clutch mechanism when the engine is started. The si... | 10/26/2010 |
| 7658175 | Engine start device An engine start device having a first start mode in which the engine is started on a spot by executing a start operation of the engine, and a second start mode in which a necessary accumulated force is previously accumulated in to start in one time in an optional pl... | 02/09/2010 |
| 7650868 | Recoil starter A recoil starter includes a case with a support shaft formed thereon; a rope reel rotatably disposed on the support shaft; a recoil rope wound on the rope reel; a recoil spring that rotationally energizes the rope reel; a cam of an engine side; a power storing sprin... | 01/26/2010 |
| 7331321 | Handheld electric starter for engines and method of use An apparatus for starting an internal combustion engine having a manual recoil starter and starter rope comprises a casing that houses a motor, a source of power, a gear reducer assembly and a spool assembly. The spool assembly includes a spool that adapted to recei... | 02/19/2008 |
| 7267091 | Dynamic effortless pull starting An energy storing recoil starter includes a buffering component to reduce a pull effort when starting an engine. The energy storing recoil starter includes a starter housing coupled to an engine shaft of the engine and a starter pulley. A clutch assembly is coupled ... | 09/11/2007 |
| 7252065 | Energy storing starting device An energy-storing starting device for an internal combustion engine includes a starter pulley and a starter spring. A spring housing at least partially houses the starter spring. A toothed housing includes a plurality of ratchet teeth. A pawl member is adapted to pr... | 08/07/2007 |
| 7234431 | Starter device for an internal combustion engine A starter device (1) for an internal combustion engine has a starter drum (4) which acts upon a spring housing (11) when starting. An intermediate spring (10) is arranged in the spring housing (11). One end of the intermediate spri... | 06/26/2007 |
| 7213561 | Recoil starter A recoil starter includes a reel/cam unit defined with a rope reel wound with a starter rope and urged to pivot in a direction of reeling the starter rope, and a cam in a cylindrical shape for transmitting rotation of the rope reel to an output shaft on a side of an... | 05/08/2007 |
| 7204555 | Detent fitting for a vehicle seat In the case of a detent fitting (1) for a vehicle seat, in particular for a motor vehicle seat, with a first fitting part (2), a second fitting part (3) which is movable relative to the first fitting part (2), at least one locking element... | 04/17/2007 |
| 7201130 | Recoil starter A recoil starter enabling a power-driven device to be coupled to a crankshaft of an engine in a state where the recoil starter is mounted to the crankshaft on the same side of the engine as the crankshaft is disposed on. A starter housing is provided on an inside th... | 04/10/2007 |
| 7191752 | Energy storing starter assembly An energy storing starter assembly comprising a pulley, a hub and a buffering component. The buffering component provides a resilient connection between the pulley and the hub, and is designed to store and transmit energy between the pulley and the hub. The ends of ... | 03/20/2007 |
| 7174874 | Recoil starter A coil starter formed so that the rotation of a rope reel is transmitted to a cam member via a coil spring-like damper spring both ends of which are engaged with the rope reel and cam member respectively, wherein the rope reel or cam member is provided with a boss p... | 02/13/2007 |
| 7163239 | Actuator assembly An actuator assembly includes an actuator drivingly connected to a gear wheel. The gear wheel includes an abutment secured rotationally fast having a camming surface and operable to drive an output member. The actuator assembly is operable to apply a force in a firs... | 01/16/2007 |
| 7162988 | Power-saving activation device An activation device for activating an engine of a power tool includes an activation unit, a clutch unit and a transmission unit, wherein the clutch unit is connected between the activation unit and the transmission unit. The activation unit includes a first spring ... | 01/16/2007 |
| 7140341 | Energy storing starter assembly Energy storing starter assembles include a hub, a pulley, and a torsion spring adapted to resiliently link the hub to the pulley. The torsion spring includes a first end portion adapted to be linked to the hub and a second end portion adapted to be linked to the pul... | 11/28/2006 |
| 7128040 | Apparatus for preventing cutting of spiral spring for engine starter An apparatus for preventing cutting of a spiral spring for an engine starter includes a rope reel to be rotated by a rope rounded thereon, a spiral spring to be wound up by the rope reel in order to accumulate a power therein, an engine starting pulley driven by the... | 10/31/2006 |
| 7128041 | Recoil starter A recoil starter in which a side face of a rope reel is formed with a ring-like recess portion for containing a damping force storing member, a boss portion of a cam is contained at inside of the ring-like recess portion and the damping force storing member is conta... | 10/31/2006 |
| 7114479 | Cable-pull type engine starting device An engine starting device includes a starting unit, a clutch unit and a transmission unit, all of the three units being installed on the same axle. The starting unit and the clutch unit are connected with each other by friction therebetween and the friction is appli... | 10/03/2006 |
| 7069896 | Recoil starter A recoil starter capable of introducing cooling air into an engine through the recoil starter and reducing a size and weight thereof. Annular recesses are formed in opposing joint surfaces of a rope reel and a cam, respectively, in a manner to face each other. A dam... | 07/04/2006 |
| 7038148 | Operating device of electronic apparatus An operating device of an electronic apparatus contains a rotatable operating knob protruding from a panel and stopper means for preventing the rotation of the operating knob. When the power of the electronic apparatus is turned off, the rotation of the operating kn... | 05/02/2006 |
| 7004139 | Engine starter An engine starter includes a rope reel to be rotated by a rope rounded thereon, a first spiral spring for recoiling and a second spiral spring for engine starting, both of the first and second springs being wound up by the rotation of the rope reel in order to accum... | 02/28/2006 |
| 6971359 | Recoil starter A recoil starter capable of preventing vibration of a damper spring due to vibrations of an engine caused during running of the engine, to thereby restrain abrasion of a rope reel, a cam and the like which are made of a plastic material, resulting in the durability ... | 12/06/2005 |
| 6959680 | Recoil starter A recoil starter enabling a power-driven device to be coupled to a crankshaft of an engine in a state where the recoil starter is mounted to the crankshaft on the same side of the engine as the crankshaft is disposed on. A starter housing is provided on an inside th... | 11/01/2005 |
| 6901900 | Recoil starter for backpack type power working machine A recoil starter for a backpack type power working machine, which is capable of easily performing the starting operation of an internal combustion engine with the working machine being carried on the operator's back. In this recoil starter, the recoil rope and the r... | 06/07/2005 |
| 6901899 | Recoil starter A recoil starter capable of readily staring an engine and reducing the number of components and manufacturing costs thereof and reducing a size and weight thereof. The recoil starter is so constructed that a rotational force accumulated in a cushioning and force acc... | 06/07/2005 |
| 6901901 | Recoil starter A recoil starter is disclosed which enables a ratchet member to be manufactured at a reduced cost and which is capable of obtaining a sufficient strength and reducing a size and weight thereof without increasing a thickness of a rope reel and the like. The ratchet m... | 06/07/2005 |
| 6827055 | Recoil starter of force accumulation type A recoil starter is disclosed which enables a rotational force to be accumulated in accumulating means with a light pulling force and the accumulated rotational force to start an engine through simple operations. A cam wheel is rotated using a rotational force which... | 12/07/2004 |
| 6820577 | Engine of compression-ratio variable type In an engine of a compression-ratio variable type, a subsidiary rod and a piston connected to a crankshaft are connected to each other through a connecting rod, and an eccentric shaft mounted at an eccentric location on a support shaft turnably carried in an engine ... | 11/23/2004 |
| 6739303 | Recoil starter A recoil starter featuring a capability of efficiently cooling an engine, easy fabrication and handlings of a power storage spiral spring and an enhanced assemblability is provided. The recoil starter comprises: a starter case unitary with a starter shaft; a one way... | 05/25/2004 |
| 6722336 | Recoil starter A recoil starter having a driving member and a driven member, wherein the driving member further includes recoiling unidirectional rotating means. The recoiling unidirectional rotating means includes a movable locking claw member which is supported by one of the rop... | 04/20/2004 |
| 6694941 | Starter There is provided a recoil starter which is capable of inhibiting settling and bending in the spiral spring of spiral spring mechanism, thus improving the durability of the spiral spring and preventing the internal hook end of the spiral spring from being... | 02/24/2004 |
| 6679217 | Starter A recoil starter wherein unidirectional rotating means is enabled to sustain a larger magnitude of torque, obviating the employment of parts which are high in mechanical strength, in rigidity and in working precision, thus making it possible to reduce the... | 01/20/2004 |
| 6679216 | Starters for internal combustion engine Provided are starters for securely starting an internal combustion engine. The starters have a reel rotatably mounted in a case, a starting rope wound on the reel, a rotor rotatably mounted in the case, a spring for storing energy with rotation of the rot... | 01/20/2004 |
| 6647942 | Engine starting and stopping device An internal combustion engine includes a spring housing rotatably mounted to the engine's engine housing for rotation about an axis of rotation. An energy storing mechanism including at least one elastic member is housed within the spring housing. A sprin... | 11/18/2003 |
| 6622683 | Engine starting and stopping device An engine starting device includes a first pulley mounted to the crankshaft of an engine for rotation with the crankshaft. A second pulley is mounted to an arbor that extends into a spring housing containing an elastic member. The elastic member is interc... | 09/23/2003 |
| 6615787 | Engine starting and stopping device An engine starting device includes a roller selectively engageable between the crankshaft of an engine and an arbor. The roller causes the arbor to rotate in a loading direction in response to rotation of the crankshaft. Rotation of the arbor loads an ela... | 09/09/2003 |
| 6595176 | Engine starting and stopping device An engine starting and stopping device includes a first roller selectively abutting the flywheel of an engine for rotation on a first shaft in response to rotation of the flywheel. A second roller abuts the first roller and rotates in response to rotation... | 07/22/2003 |
| 6508220 | Starter A starter that is capable of minimizing fluctuations in the pulling force of a starter rope so as to make it possible to perform a smooth pulling operation when starting an internal combustion engine includes a driving section (A), a driven section (B), a... | 01/21/2003 |
| 6386169 | Starting and stopping device for internal combustion engine An engine starting and stopping device for an internal combustion engine includes an energy storing mechanism having at least one elastic member such as a spring, an input element engageable with the elastic member and movable during engine coast down to ... | 05/14/2002 |