Patents Examined by C. T. Bartz
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Patent number: 6341678Abstract: A vehicular suspension strut or shock absorber of the type which is connected to a wheel spindle by means of a mounting bracket and which operates in conjunction with a helical coil spring is disclosed. The suspension strut includes a strut body that has upper and lower increased diameter portions or dimples which form lands for receiving the spring seat assembly and the lower mounting bracket, respectively. The spring seat assembly is adapted to be mounted on and held in place by the upper increased diameter portion or dimples, and the lower mounting bracket is adapted to be mounted on the lower increased diameter portion or dimples, which advantageously avoids having to separately weld the spring seat assembly and mounting bracket to the strut body.Type: GrantFiled: July 7, 2000Date of Patent: January 29, 2002Assignee: Gabriel Ride Control Products, Inc.Inventors: David S. Hoyte, Stephen H. Bell
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Patent number: 6341673Abstract: An actuator for a hydraulic brake system of bicycle includes a box having a chamber and a passage which communicates with the a chamber. Hydraulic oil is filled in the chamber and the passage. A piston is movably inserted into the a chamber and a brake cable is fixedly connected to the piston. The passage is connected with a brake mechanism so that when pulling a brake lever to pull the brake cable, the piston is moved to push the hydraulic oil to the passage to actuate the brake mechanism. A spring is biased between the piston and an inside defining the chamber if the box is connected to the brake lever. The piston will be back to its original position by the spring when releasing the brake lever.Type: GrantFiled: July 7, 2000Date of Patent: January 29, 2002Inventor: Yung-Pin Kuo
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Patent number: 6340079Abstract: A heavy duty brake drum cover system including two semicircular plates which mount over and about the axle housing and the S-cam which cover the brake drums. The brake drum cover system prevents dirt, gravel and other debris from entering the brake drum and causing excessive wear to the brake drums and shoes. Also provided are brake shoe inspection holes which allow the user to inspect the brake shoes without removing the brake drum cover system. The brake drum cover system are intended for hopper bottom style trailers, but could be modified to suit any other brake system.Type: GrantFiled: April 13, 2000Date of Patent: January 22, 2002Inventor: Robert Perry
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Patent number: 6336534Abstract: A disk brake assembly has a housing mounted to a vehicle and a rotor disk mounted to a wheel of the vehicle. Upon expansion of an annular flexible bladder during a brake action, a first brake shoe moves towards the rotor disk and causes the rotor disk to move towards the second brake shoe resulting frictional engagement between the respective brake shoes and the rotor disk. The first brake shoe is deformable under uneven and variable forces resulting from imperfect machining and uneven wearing of the rotor disk. An annular brake pad is attached to first brake shoe using a layer of resilient and deformable material to improve the resilience of the first brake shoe.Type: GrantFiled: October 4, 2000Date of Patent: January 8, 2002Inventor: Yvon Rancourt
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Patent number: 6336661Abstract: An airbag apparatus is formed of a casing having an opening at an upper part thereof and a side portion, an airbag accommodated in and coupled with the casing, a gas generator for supplying a gas into the airbag and deploying the airbag, and a lid for covering the opening. A thick plate may be formed independently and attached to casing, or formed integrally with the casing. The thick plate has a thickness greater than that of the casing, and includes an upper portion and a lower portion extending from the upper portion. The lower portion and the side portion of the casing secured thereto project outwardly of the casing to be deformed easily when a force is applied thereto.Type: GrantFiled: August 15, 2000Date of Patent: January 8, 2002Assignee: Takata CorporationInventor: Ichiro Amamori
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Patent number: 6336687Abstract: An automatic breaking system which functions by applying a controlled breaking pressure signal through a control valve to each of the four corners of an automotive vehicle in response to input and feedback signals. A centralized computer receives various signals generated by transducers positioned at various positions within the vehicle including at each of the four corners as well as input signals from the vehicle brake peddle. These signals are processed by the computer and then applied through a control system to a direct drive valve which meters the application of the fluid under pressure to the breaks located at each corner of the vehicle. Direct drive valve is a limited angle rotary to linear direct drive valve which includes a housing having a first bore longitudinally disposed therethrough and a second bore disposed transversely therethrough and intersecting the first bore. A valve spool is slidably disposed within a second bore for controlling the flow of fluid under pressure.Type: GrantFiled: March 21, 2000Date of Patent: January 8, 2002Assignee: HR Textron, Inc.Inventor: Muchlis Achmad
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Patent number: 6336533Abstract: A brake shoe having a noise dampener made of a yielding member secured to the web plate. The yielding member is provided to dampen or counter stick/slip frequencies resulting from the interaction between the brake drum surface and the brake lining during a braking event. Preferably the brake shoe includes two spaced-apart web plates and the yielding member is a coiled spring disposed there between.Type: GrantFiled: June 9, 2000Date of Patent: January 8, 2002Assignee: Dana CorporationInventors: Paul Pollock, Richard Joslin
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Patent number: 6334513Abstract: A disc brake assembly for a bicycle includes a connecting bar and a brake disc each mounted on a bicycle. The connecting bar includes a pivot hole defined in one end and a lug extending from the other end. The lug has a bore defined therein. A casing with two brake pads is movably attached to the connecting bar. An ear extends from the casing and has a threaded hole defined therein corresponding to the pivot hole of the connecting bar. Another ear extends from the casing and has a hole defined therein corresponding to the bore of the lug of the connecting bar. An adjusting device is mounted on the casing and connected to the connecting bar. Rotating the adjusting device can adjust the distance of the casing and the connecting bar. Furthermore, the gaps between the brake disc and the brake pads are adjusted.Type: GrantFiled: January 27, 2000Date of Patent: January 1, 2002Assignee: Yih Cherng Co., Ltd.Inventor: Bang-Shiong Chern
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Patent number: 6328292Abstract: The present invention 10 disclosed a shock-absorbing member for attachment to the frame 18 of a bike 12. The variable resistance pneumatic spring is mounted on an existing coil spring shock body 56 comprising a cylindrical, substantially vertical body having a threaded exterior 24 to accept a spring preload adjuster nut 32, a central recess to receive a strut 62 into the superior end and a means 64 for attachment to the wheel assembly or bicycle frame 18 on the inferior end. The strut 62 has a first end slidably secured within the central recess of the body member 56 and a second end with a means 66 for attachment to the bicycle frame 18 assembly or to the wheel assembly. The progression cone 22 slides over the body member 56 and is held in place by the preload adjustment nut 32, the progression cone 22 being substantially cylindrical with a conical upper portion 34.Type: GrantFiled: January 26, 2000Date of Patent: December 11, 2001Inventor: Scott Conrad Jarstad
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Patent number: 6321878Abstract: A braking system for a hospital bed having a base frame includes a plurality of caster devices rotatably coupled to the base frame. Each caster device has a wheel and a brake that inhibits rotation of the wheel. The braking system further includes a plurality of pedals configured to move the brakes between a position inhibiting movement of the wheels and a position permitting rotation of the wheels. The braking system further includes a linkage coupled to the caster devices so that movement of any one of the plurality of pedals causes movement of the brakes of the caster devices.Type: GrantFiled: March 5, 1999Date of Patent: November 27, 2001Assignee: Hill-Rom Services, Inc.Inventors: Donald L. Mobley, William S. Larisey, Jr., John Tuttle, James J. Saar, James D. Cunningham, Bruce A. Meyer
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Patent number: 6322161Abstract: The present invention is a safety-enhancing automatic air parking brake actuator system that automatically actuators the air brakes in an engaged condition when one or more dangerous conditions exist at various stations around/in the vehicle or equipment. The preferred actuator system operates on the principle that the brake actuator system is electrically connected to the various stations, and, when a circuit including the actuator unit is interrupted, a solenoid valve of the actuator system closes and vents, to cut off the air supply to the air brakes to engage the brakes. The stations may include the vehicle ignition, one or more doors, a wheelchair lift, a dump truck bed, a backhoe arm, or other equipment.Type: GrantFiled: March 9, 2000Date of Patent: November 27, 2001Inventors: Dale Maslonka, G. David MacGregor, Noble Hamilton
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Patent number: 6318515Abstract: A hold down spring for yieldably securing a drum brake shoe to a drum brake backing plate includes a nail that extends through apertures in the backing plate and in the brake shoe. A coil spring circumscribes the nail and urges a spring retainer slidable on the nail away from the brake shoe. The nail extends through an elongated slot in the retainer, which includes a wider portion which accepts an expanded end of the nail and a narrower portion which is narrower than the expanded end but wide enough to permit the nail to freely slide along the slot. The slot is inclined toward the brake shoe, so that the action of the spring tends to force the nail within the slot toward a seating area at one end of the slot.Type: GrantFiled: March 30, 2000Date of Patent: November 20, 2001Assignee: Delphi Technologies, Inc.Inventor: Frank Gerard Pirrallo
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Patent number: 6315307Abstract: A collapsible scooter has a frame plate secured on a head tube of the scooter, a strut having a lower end thereof pivotally connected to a foot board of the scooter and an upper end thereof pivotally connected to the frame plate. Opposite sides of the frame plate are symmetrically defined with two pivot slots, the upper end of the strut is pivotally connected with the frame plate and movable along the pivot slots between an upper position in which the scooter is fully collapsed and a lower position in which the head tube is uprightly extended. A retaining device is particularly provided in the scooter to prohibit the head tube from any inadvertent movement relative to the foot board, even when the head tube is subjected to excessive stress during riding on a rough road.Type: GrantFiled: September 21, 2000Date of Patent: November 13, 2001Inventors: Kai-Wen Chen, Kuang-Huei Chen
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Patent number: 6312061Abstract: A plurality of pressure sensors are carried in housing mounted upon a hydraulic control valve for an electro-hydraulic brake system. The pressure sensors are electrically connected to a signal conditioning circuit which also is mounted upon the hydraulic control valve. The signal conditioning circuit samples the sensors and mulitplexes the sensor signals into a single output signal.Type: GrantFiled: November 24, 1999Date of Patent: November 6, 2001Assignee: Kelsey-Hayes CompanyInventors: Paul M. Schliebe, Charles Darnell, Edward R. Hornback, Clark E. Lowman
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Patent number: 6308803Abstract: A brake disc is provided with a visual control means of its wear conditions on at least one of its opposite side faces in correspondence of the peripheral braking strip on which the braking pads act by friction. The visual control means is in the form of a notch in the circumference of the brake disc or a circumferential throat-like or angle groove formed in the outer edge of the brake disc.Type: GrantFiled: August 17, 1999Date of Patent: October 30, 2001Assignee: Brembo S.p.A.Inventor: Leone Oberti
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Patent number: 6305490Abstract: A steering valve arrangement of a hydraulic steering system has a rotary valve with a first and a second control part that are rotationally movable relative to one another. By rotational adjustment of the control parts a hydraulic servomotor is controlled which is connected drivewise with the steered wheels of a vehicle. An electric motor is mounted in a fixed location for actuating the rotary valve relative to the first control part and is connected drivewise with the second control part. The driving connection from the electric motor to the second control part is provided indirectly by a step-down transmission, including a small gear fixed to the motor drive shaft and a large gear connection with the second control part. The steering valve and the motor are disposed side by side and parallel to one another in a compact design.Type: GrantFiled: September 3, 1999Date of Patent: October 23, 2001Assignees: DaimlerChrysler AG, Mercedes-Benz Lenkungen GmbHInventors: Hendrik Loos, Martin Rothmund, Bernd Schiek, Hubert Bohner
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Patent number: 6305675Abstract: An oscillating force generator is disclosed, wherein a yoke member has an annular groove in which a coil is disposed so as to be energized by an electric current for generating magnetic circuit around the coil, and for magnetizing an inner and outer circumferential wall portions of the yoke member as respective opposite magnetic poles at their open end portions. An oscillating member made of a magnetic material is disposed opposite to the one end face of the yoke member in an axial direction of the yoke member with a predetermined axial distance therebetween. The oscillating member has an inner and an outer circumferential portion which are located nearest to the open end portions of the inner and outer circumferential wall portions of the yoke member, respectively. The coil is energized for generating magnetic force acting on the oscillating member so that an oscillating force is generated between the oscillating member and the yoke member in the axial direction thereof.Type: GrantFiled: August 4, 2000Date of Patent: October 23, 2001Assignee: Tokai Rubber Industries, Ltd.Inventor: Atsushi Muramatsu
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Patent number: 6296238Abstract: The device dampens vibrations between objects, especially for preventing the transfer of vibrations from a primary object subjected to vibrations, to a vibration-sensitive secondary object. The secondary object is non-rigidly supported by a damping body, which has the same or essentially the same size of mass as the secondary object, and which in turn is non-rigidly supported on the primary object.Type: GrantFiled: June 24, 1999Date of Patent: October 2, 2001Inventor: Birger Lund-Andersen
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Patent number: 6296071Abstract: A rocker assembly includes a base member having opposite ends, a flange interconnected with each of the opposite ends, a pair of rocker arm support shafts supported by the flanges, and a rocker arm interconnected with each rocker arm support shaft for rotation with respect to the rocker arm support shaft about a longitudinal axis. The rocker assembly is housed in a rocker box housing, is removable from the rocker box housing, and is mounted directly on the cylinder head of a motorcycle. The rocker box housing includes a generally wedge-shaped cover and a generally wedge-shaped base to allow the cover to be removed from the base in a generally horizontal direction.Type: GrantFiled: September 5, 2000Date of Patent: October 2, 2001Assignee: Harley-Davidson Motor Company Group, Inc.Inventors: Richard M. Runte, Henry Hubbard, R. Bruce Dennert
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Patent number: 6293375Abstract: A permanent magnet brake mechanism comprised of a permanent magnet, a guide ring, bearings inside a neck, a single-direction flywheel assembly of a rotatable outer hub disposed adjacent to the neck, a main shaft inserted through the bearings mounted in the rotatable outer hub, a sliding seat sleeved onto the main shaft and that is situated within the interior spatial confines at one side of the outer hub, a return spring installed at the exterior side of the sliding seat and on the main shaft that is also situated between the main shaft and the sliding seat, a brake line that is connected to the sliding seat and, furthermore, controls the movement of the sliding seat, and a guide key at interior side of the brake line that provides for the positioning of a mounting frame when the sliding seat slides along the main shaft.Type: GrantFiled: May 26, 2000Date of Patent: September 25, 2001Inventor: Chun-Feng Chen