William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 7438163 | Brake application device comprising an electrically actuated device for emergency and auxiliary release The invention relates to a brake application device for vehicles, in particular rail vehicles, comprising a unit for emergency release and a unit for auxiliary release. The release units are integrated into a combined device for emergency and auxiliary release of th... | 10/21/2008 |
| 7419035 | Brake application device comprising an electrically actuated wear-adjusting emergency release and auxiliary release device A brake application device for vehicles, especially for rail vehicles, comprising a wear-adjusting device which is embodied in a brake actuator and comprises a helical gear which is provided with a threaded spindle and a nut as screw connection parts, said nut being... | 09/02/2008 |
| 7240774 | Extended range hall effect displacement sensor A displacement sensor utilizes a Hall effect sensor and a magnet, but has an extended range compared to conventional Hall effect displacement sensors. Relative movement between the sensor and the magnet is defined such that the path of movement is not parallel to an... | 07/10/2007 |
| 7225725 | Bi-directional pneumatic motor A pneumatic motor for providing bi-directional linear motion including a motor housing having a cylinder bore and a piston mounted on a piston rod positioned in the cylinder bore. The ends of the piston rod extend beyond the ends of the cylinder bore. The cylinder b... | 06/05/2007 |
| 7204351 | Brake gear for a disc brake The invention relates to a brake gear for a disc brake serving to transfer a force to a brake pad that acts upon a brake disc. The brake gear is accommodated in a brake caliper of the disc brake and comprises both a pressing element, which interacts with the brake c... | 04/17/2007 |
| 7124862 | Brake slack adjuster A brake slack adjuster is provided that includes a housing having an opening with a gear arranged within the opening. The housing includes a bore adjacent to the opening. A worm gear has an axis disposed within the bore and is an engagement with the gear. The worm g... | 10/24/2006 |
| 7040465 | Slack adjuster with wear reduction A slack adjuster for a vehicle brake includes a slack adjuster body having a cylindrical inner surface at least partially defining a chamber in the body. A worm gear is received in the chamber in the body. At least one low friction ring is interposed between the wor... | 05/09/2006 |
| 6907967 | Compact actuator An actuator including a housing accommodating a screw mechanism and a drive including a motor. The screw mechanism includes a nut and a screw, one of which is rotatably supported with respect to the housing. Upon relative rotation of the nut and the screw, linear mo... | 06/21/2005 |
| 6845852 | Brake control apparatus obtaining braking force by pressing of friction member using motor A vehicular brake apparatus, which is provided at a shaft of a motor that revolves due to depression of a brake pedal, has a variable gear mechanism including a non-circular spur gear that changes a reduction ratio from a high gear ratio to a low gear ratio along wi... | 01/25/2005 |
| 6814189 | Adjusting device for a cable An adjusting device for a cable of a hand-brake. When the hand-brake is disengaged, a tractive element configured as a threaded spindle that can be attached to the cable can be tightened on a spindle nut that surrounds the threaded spindle in relation to a housing b... | 11/09/2004 |
| 6691838 | Adjuster strut A drum brake assembly, adjuster strut (10) being adjustable and having axially extended and retracted conditions. The strut includes means (11, 35) for engaging braking members (3), a rotatable member (27) rotatable about the lengthwise axis of the strut,... | 02/17/2004 |
| 6659236 | Parking brake A disc brake having a ball-in-ramp actuator retained in a caliper for supplying a piston with a static clamping force to move first and second friction members into frictional engagement with a rotor to effect a parking brake application. The clamping for... | 12/09/2003 |
| 6626269 | Zero drag disc brake with anti-knock-back device A disc brake caliper assembly has a housing with a bore. A piston in the bore is movable between applied, retracted and knock-back positions. The piston is activatable by hydraulic pressure to move from the retracted position to the applied position; and ... | 09/30/2003 |
| 6481543 | Zero drag disc brake with anti-knock-back device A disc brake caliper assembly is provided that includes a housing having a bore. A piston is arranged within the bore and is movable between normal retracted and knock-back positions. A linkage is adjacent to the piston and is movable between first and se... | 11/19/2002 |
| 6450302 | Automatic slack adjuster with two part lift rod A vehicle brake slack adjuster of the type having a housing pivotally connected to a vehicle brake operator and enclosing a slack adjusting mechanism operably coupled to a vehicle brake operating system and a linkage for operably coupling the vehicle brak... | 09/17/2002 |
| 6422354 | Disc brake caliper with integral parking brake A disc brake caliper with an integral parking brake includes a caliper housing defining a cavity therein and a piston axially translatable within the cavity and having an internal bearing surface. At least one brake pad is affixed to either the piston or ... | 07/23/2002 |
| 6386339 | Automatic adjuster for spring applied mechanisms In a spring applied mechanism such as a fail-safe disc brake having a disk and pads, there is provided an automatic adjuster to maintain even travel and pressure to the brake pads from the spring pack regardless of pad wear. The adjuster has a piston oper... | 05/14/2002 |
| 6367597 | Electric actuator with control sensor, and disc brake comprising such actuator An electric actuator (1) comprises a housing (2) which contains a screw mechanism (3) and an electric motor (4) which is driveably connected to the screw mechanism (3), said screw mechanism (3) providing a linear movement in a rotational movement of the e... | 04/09/2002 |
| 6318516 | Bearing arrangement for actuating a brake in a brake system The inventive bearing arrangement for a device for activating a vehicle brake has a central threaded spindle (2) which is secured against torsion in a fixed housing (1) and which is arranged in such a way that it can be displaced up to a brake disk (3) of... | 11/20/2001 |
| 6279691 | Electric braking device A force transmitting and converting mechanism for an electric braking device comprising a gear, a nut, a rotating body, a ramp mechanism, a screw member, and a brake element. The gear is rotated by the electric motor, and the nut disposed being opposed to... | 08/28/2001 |
| 6276497 | Electrically assisted brake actuator A block brake actuator including in a housing a service brake arrangement, having an electric motor and mechanism for transforming its rotary movement into an axial movement of a push rod, and a safety brake arrangement, including at least one powerful sp... | 08/21/2001 |
| 6264011 | Device for actuating a vehicle brake A device for actuating a vehicle brake, which device comprises a threaded spindle (1) which is secured against rotation in a stationary housing (4) while being axially displaceable toward and away from a brake disc (6) of the vehicle brake, and further co... | 07/24/2001 |
| 6155385 | Vehicle brake systems In a vehicle brake system a wedge is provided between the brake pedal and the pushrod which operates the master cylinder. Movement of the wedge is controlled by a control unit by means of a solenoid, when the control unit anticipates that the brakes may b... | 12/05/2000 |
| 6112864 | Disc brake A pin slide mechanism 3 comprises a pair of support portions 23, 24 on a carrier 1 secured to a non-rotating portion of a vehicle. A support portion 24 provided on a tip end of an arm 28 extends from the carrier 1 inwardly of the vehicle. By slidably fitt... | 09/05/2000 |
| 5937974 | Spring applied parking brake actuator having a collet style slack adjuster A brake actuator for use on passenger transit railway vehicles, is disclosed. The actuator includes a housing containing a service piston and a parking brake piston. The service piston is connected to an inner hollow stem having a forward conical surface ... | 08/17/1999 |
| 5931263 | Quasi-elliptical bidirectional progressive safety An elevator safety based on having the elevator lift-rod, under the influence of the elevator governor, cause to rotate approximately elliptical cams, called quasi-elliptical cams. The cams are wider in one orientation, just as an ellipse has a major axis... | 08/03/1999 |
| 5931268 | Electrical actuation mechanism suitable for a disc brake assembly An improved structure for an electrical actuation mechanism adapted for use in a disc brake assembly includes an electrical actuation mechanism adapted to be secured to an inboard leg of the caliper of the disc brake assembly. The electrical actuation mec... | 08/03/1999 |
| 5845750 | Ramp means for a device for taking up clearance designed to equip a friction clutch, notably for a motor vehicle A device for taking up clearance designed to equip a diaphragm friction clutch, having circumferentially distributed ramps designed to cooperate with the thrust plate of the clutch, support areas designed to receive the axial force of the diaphragm of the... | 12/08/1998 |
| 5842549 | Piston stroke controller in a torque transmitting assembly Power transmission torque transmitting assemblies, such as clutches and brakes, have an axially movable piston which is hydraulically actuated to engage and enforce frictional contact between a plurality of friction discs. Upon piston retraction during di... | 12/01/1998 |
| 5692586 | Brake having a pressure responsive slack adjuster A brake device equipped with an actuator having a power-transmission member generating a pushing force by receiving a drive force so as to advance. A pressure-detection device is provided for detecting the reaction pressure being applied to the power-tran... | 12/02/1997 |
| 5680912 | Disc brake A disc brake has a driven adjusting mechanism with a thrust shaft. A drive element of the adjusting mechanism is coupled to the thrust shaft in a manner such that the drive element and thrust shaft are mutually irrotational but are axially movable with re... | 10/28/1997 |
| 5628387 | Infinitely self-adjusting mechanical brake An infinitely self-adjusting mechanical brake system which has a caliper housing and actuator assembly partially surrounding a brake disk for making small brake adjustments automatically. A brake disk pad adjacent to a mechanical brake is connected to a b... | 05/13/1997 |
| 5531306 | Spacer for worn clutch brakes This invention is a spacer that has a plate portion with a U-shaped opening in one end and a foot portion attached to the opposite end. This spacer can be passed through the inspection opening or port of the bell housing of a transmission with the plate p... | 07/02/1996 |
| 5531308 | Wear indicator for an automatically adjusting friction torque device A friction device includes an adjustment mechanism for adjusting the device in response to wear on a friction surface within the device. The adjustment mechanism includes a first cam ring and a second cam ring adjacent the first cam ring. In one embodimen... | 07/02/1996 |
| 5495921 | Single actuator truck mount brake system A slack adjuster for use in combination with a pneumatic brake actuator cylinder wherein the slack adjuster includes a friction clutch which prevents rotation of the screw for first relative position of the piston and screw while allowing rotation of the ... | 03/05/1996 |
| 5443131 | Trailer brake system A trailer brake system including a releasably latching hand lever, a series of cables interconnecting the lever and mechanically energized brakes capable of locking an opposing road wheel pair. The trailer brake system attaches to an existing travel or bo... | 08/22/1995 |
| 5435419 | Drum brake wear adjustor with eccentric roller and pawl assembly The present invention relates to a cam-operated, self-adjusting brakeshoe adjustor that is utilized in heavy duty air braking vehicles that employ single and/or multiple-web brakeshoes. The brakeshoe adjustor includes a roller assembly, a cylindrical roll... | 07/25/1995 |
| 5431256 | Adjusting device for a brake cable of a bicycle An adjusting device for a brake cable of a bicycle includes an adjusting element with a threaded hole defined in an end thereof, a first cable and a second cable. The first cable has a first end pivotally engaged to a connector and a second end with a hea... | 07/11/1995 |
| 5423401 | Brake actuator having collet style slack adjuster A brake actuator includes a tubular housing member, connected at a first end to a cylindrical housing with a member for admitting fluid, a piston with a sealing member mounted for reciprocal movement within such cylindrical housing, a tubular stem connect... | 06/13/1995 |
| 5353896 | Disk brakes for motor vehicles The disk brake with a caliper (2) reaching over a brake disk (1) exhibits on one side a clamping mechanism. The clamping mechanism includes a cam lever (4), which can be rotated around an axis parallel to the plane of the brake disk and interacts preferab... | 10/11/1994 |