Famous Patents
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 |
| 7302875 | Rotation transmitting device and hydraulic drive unit A hydraulic drive device, comprising a hydraulic motor (10), a rotating body (20) connected to the drive shaft (11) of the hydraulic motor (10), functioning, by itself as a flywheel, and having an internal gear (21) formed on the o... | 12/04/2007 |
| 7219793 | Apparatus, arrangement and method for braking A braking device for a pallet intended to run in a conveying track. The braking device includes a matrix and a braking element. The matrix includes the support service and exterior surface and a recess having various screws and openings. The braking element includes... | 05/22/2007 |
| 7150343 | Shoe brake assembly, in particular for rail vehicles A shoe brake assembly for a rail vehicle including a bogie connected with the rail vehicle. The assembly also includes a wheel having a wheel web and radially inward-facing surfaces on opposite sides of the wheel web. Also included are at least two brake pads adjace... | 12/19/2006 |
| 7104370 | Drum brake assembly A drum brake assembly which includes a rotatable drum having a radially inner drum braking surface and a brake shoe of single piece construction and of generally circular form mounted within the drum and against a backing plate. The brake shoe includes friction lini... | 09/12/2006 |
| 6948596 | Dual-acting band brake A band brake for retarding the motion of an associated rotatable member. The brake acts to resist motion of the rotatable member through actuation of both of its ends by a cylindrical actuating member. The band is connected with and carried by actuator so as to allo... | 09/27/2005 |
| 6899205 | Brake assembly A drum brake assembly including a rotatable drum having a radially inner braking surface and a brake shoe of single piece construction and of generally circular form mounted within the drum against a backing plate. The brake shoe has a radially outer face and a fric... | 05/31/2005 |
| 6622833 | Drum brake system The invention relates to a drum brake device (10), which is provided as a wheel brake for a motor vehicle. The invention proposes embodying the drum brake device (10) with a brake belt (14), which is disposed inside a brake drum (12) and can flex in the r... | 09/23/2003 |
| 6592129 | Pair of wheeled skate-skis with brakes usable on most terrains Improvements made to wheeled skate-skis with brakes usable on most terrains are: a hand controlled hydraulic fluid braking assembly, having a sole, resilient, curved spring, brake shoe, providing performance in comparison with the braking performance of a... | 07/15/2003 |
| 6422362 | Brake device Disclosed is a brake device for at least one axle of a wheel of a vehicle such as a bicycle for braking a brake drum which is connected to the wheel, having a brake carrier, a shoe element, a brake lever with a cam which is arranged between two shoe ends ... | 07/23/2002 |
| 6422356 | Automatic transmission with band brake and hydraulic operator The automatic transmission of the present invention prevents fluctuation of torque transmission through a band brake. In the hydraulic operator for the band brake, a resilient elastic cushion is provided between a rod abutting one end of the band of the b... | 07/23/2002 |
| 6116531 | Fishing reel drag mechanism A fishing reel drag mechanism includes a spool for a fishing line, a brake drum attached coaxially to the spool, and a resilient circular brake shoe positioned inside the brake drum. The outer diameter of the brake shoe is slightly smaller than the inner ... | 09/12/2000 |
| 5957247 | Actuator for a parking brake A drum-in-hat brake assembly (10) having first (12) and second (14) brake shoes retained on a backing plate (16) by first (18) and second (20) pins connected to the backing plate (16). The first (12) and second (14) brake shoes are aligned on the backing ... | 09/28/1999 |
| 5531298 | Brake actuator A drum-type brake actuator provides increased force transmission efficiency and assembly simplicity. An anchor carries two pistons which are moved to apply a brake shoe by the cooperative operation of a lever and strut arrangement. The utilization of thre... | 07/02/1996 |
| 5246093 | Drum brake assembly A drum brake assembly including a brake member comprised of a substantially circular shoe having a radially outer face on which at least one lining is mounted. The shoe is made from a high strength resilient material and is of substantially constant cross... | 09/21/1993 |
| 4991458 | Anti-theft steering shaft lock An anti-theft steering shaft lock includes a longitudinally split elastomeric clutch sleeve, a non-cylindrical cam section on the steering shaft, and a transverse lock bolt bodily shiftable between extended and retracted positions. The sleeve has a right ... | 02/12/1991 |
| 4720000 | Torque wrench with clutches The external sleeve of a slip brake in a torque wrench with a pair of clutches in series is provided with a spiral groove which houses lubricant. "O" rings at opposite ends of the external sleeve cooperate with an internal sleeve to seal in the lubricant.... | 01/19/1988 |
| 4711449 | Weight lifting safety device A weight lifting safety device having bar and weight support assemblies depending vertically for support on a support surface at a predetermined elevated position, the attachment of the elements of the safety device to a standard bar bell being such as to... | 12/08/1987 |
| 4679745 | Reel brake device of a videocassette recorder A reel brake device for use in a video-cassette recorder comprises a solenoid mounted on a base plate of a deck of the recorder and arranged around a reel shaft erected on the base plate, and a moveable core wire disposed between the solenoid and the reel... | 07/14/1987 |
| 4206519 | Stabilized artificial knee mechanism An artificial leg has a stabilized knee mechanism, that is, a mechanism which resists flexion of the leg when the latter is under load. The leg has upper and lower leg components, for example thigh and shin, and the knee mechanism includes a hollow brake ... | 06/10/1980 |
