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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 |
| 7546767 | Magnetic balancer apparatus and method A magnetic balancer for improving component balance, ease of use, durability, and portability of components having at least one rod member, and at least two magnets. The at least one rod member has a radiused pair of end portions suspended between at least two magne... | 06/16/2009 |
| 7234350 | Unbalance measuring apparatus A bearing 41 of a support portion 4 for rotatably supporting a shaft 11 of a rotating body 10 to be measured with respect to the magnitude of unbalance thereof is formed into a hollow U-shape and has formed therein an injection port 41... | 06/26/2007 |
| 6907781 | Wheel balancing system with integrated wheel lift, loaded mode testing, and wheel imaging system An apparatus for determining balancing information of an object in rotation comprises a base, an arm, a spindle, at least one force sensor, a rolling road, a controller, and an actuator. The arm is rotatably connected to the base about a pivot axis. The spindle is p... | 06/21/2005 |
| 6481281 | Wheel mount chuck and wheel mount method for vehicle wheel balancers A multi-jawed chuck adapter (100) is secured substantially coaxially within a pilot hole (20) of a wheel and tire assembly (10) to facilitate mounting of the wheel and tire assembly (10) upon the spindle shaft (12) of a vehicle wheel balancer, eliminating... | 11/19/2002 |
| 6301962 | Weight compensating arrangement for a displaceable examination component of a medical apparatus Weight compensating arrangement for a displaceable examination component of a medical system has a lever arrangement and a controllable adjusting device which acts on a first lever arm in order to exert a compensating force for the weight of the examinati... | 10/16/2001 |
| 5939629 | Rotor balancing systems including superconductor bearings A method and system for balancing a rotary member. The system preferably comprises balancer stand, a stator element including and a levitation element. The rotary member is coupled with the levitation element. The rotary member and the levitation element ... | 08/17/1999 |
| 5503015 | Blade balancer A blade balancer qualitatively determines imbalance of a lawn mower blade. The blade balancer comprises a tube that rotates on precision bearings about a horizontal axis. A sphere is slidingly captured in one end of the tube concentric with the axis of ro... | 04/02/1996 |
| 5398550 | Blade balancer A blade balancer qualitatively determines imbalance of a lawn mower blade. The blade balancer comprises a tube that rotates on precision bearings about a horizontal axis. A sphere is slidingly captured in one end of the tube concentric with the axis of ro... | 03/21/1995 |
| 4663971 | Static wheel balancer The wheel balancer includes a plastic one-piece body for mounting on the shaft of a wheel and also having a window. A bar is carried by the body and is slidable therein to a position where the wheel is in balance, whereupon indicia on the bar, visible thr... | 05/12/1987 |
| 4423633 | Nose unit for a vehicle-wheel balancing machine The nose unit is formed by a hollow body of revolution having an annular flange and attached to a rotatable spindle. A series of crank-plates provided with studs for securing the rim of a vehicle wheel can be pivotally mounted on the annular flange. The c... | 01/03/1984 |
| 4407154 | Bowling ball weighing and balancing device A bowling ball weighing device is provided for determining weight imbalance between various opposed sides of bowling balls comprising a support stand having two substantially vertically oriented standards supporting a circular cradle freely and pivotally ... | 10/04/1983 |
| 4336716 | Wheel balancing device and method The static balancing of a wheel is achieved quickly and in a simplified manner with the use of a scale device which is mounted alongside a rotatably mounted wheel. The scale device comprises an elongate deflectable pointer which is mounted at one end and ... | 06/29/1982 |
| 4238961 | Apparatus for use in balancing bus and truck wheels Apparatus for use in balancing a truck or bus wheel includes an assembly for axially securing such a wheel on a shaft and a stand to rotatably support the wheel-holding assembly while the wheel is being balanced. The stand has spaced shaft supporting memb... | 12/16/1980 |
| 4170903 | Balancing apparatus for blade sets for a cutter An apparatus for balancing of blade sets for a cutter with the blade sets including at least one cutter blade provided with a carrier bore having a hexagonal profile. The cutter blades are provided with at least one clamping set having at least one compen... | 10/16/1979 |
| 4009612 | Wheel balancer A wheel balancer has a support by which a wheel may be rotatably held by bearing units to be free to turn until it comes to rest with its heavy point lowermost. The wheel supporting shaft, the bearing units and the supports therefor provide mechanical adv... | 03/01/1977 |
| 3995498 | Wheel mounting assembly for tire balancing machine A wheel mounting assembly for a tire balancing machine of a type for rotating a wheel with a tire mounted thereon includes an annular support plate arranged to be mounted for rotation by the machine. The support plate carries means for simultaneously movi... | 12/07/1976 |
| 3991620 | Apparatus for determining imbalance of tires and the like Method and apparatus for single plane, balance determination of cylindrical parts and the like, particularly adapted for use with determining imbalance of unmounted tires. The tire to be tested for balance is supported for rotation about a horizontal axis... | 11/16/1976 |
