Patents Examined by Lee W. Young
  • Patent number: 5573314
    Abstract: A hydraulic brake system for braking a vehicle wheel includes a hydraulic fluid source, a pump connected to the hydraulic fluid source for pumping hydraulic fluid based on operation of an operating member of the vehicle and a connecting arrangement having one end connected to the pump. A wheel cylinder which is adapted to be mounted adjacent a brake disk of a vehicle wheel includes a brake pad element for being urged against the brake disk upon the application of a hydraulic fluid pressure to impart a braking force to the brake disk. The brake pad element is movable with the brake disk when the brake disk element is urged against the brake disk. In addition, a movable pressure increasing element is positioned adjacent the brake pad element and is movable away from the brake pad element as a result of the brake pad element moving with the brake disk. As a result, an increase in pressure in the wheel cylinder arises in a relatively rapid manner to compensate for compliant characteristics in the braking system.
    Type: Grant
    Filed: February 22, 1995
    Date of Patent: November 12, 1996
    Assignee: Imra America, Inc.
    Inventors: Tokihiko Akita, Andrew A. Frank
  • Patent number: 5571263
    Abstract: In a hydraulic mount the use of multiple primary orifices with unequal area reduces the effects of rapid transitions in dynamic rigidity and the amplitude of impulsive vibration generated thereby. This invention's reduced impulsive vibration has lead to the substantial elimination of mode transition related noise in associated vehicle structures in the 200 Hz to 500 Hz range.
    Type: Grant
    Filed: April 14, 1995
    Date of Patent: November 5, 1996
    Assignee: General Motors Corporation
    Inventors: David J. Koester, Michael G. Zimmerman, Frederick C. Miller, Robert D. Milos, III
  • Patent number: 5570935
    Abstract: A slip rate at a time when a wheel deceleration corresponding to the difference between the road-surface reactive torque and the braking torque has become greater than or equal to a predetermined value set on the basis of a vehicle deceleration is computed. An offset amount between the slip rate computed on the basis of the wheel deceleration and a targeted slip rate at which a coefficient of braking friction becomes maximum is computed. A wheel speed at the targeted slip rate is calculated as a targeted wheel speed on the basis of the calculated slip rate, the calculated offset amount, and a vehicle speed. Then, the braking torque of the wheel is controlled such that the wheel speed becomes equal to the targeted wheel speed.
    Type: Grant
    Filed: December 13, 1994
    Date of Patent: November 5, 1996
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Shirou Monzaki
  • Patent number: 5571264
    Abstract: A first connecting member 1 secured to an engine, a second connecting member connected to an automobile vehicle and a rubber block 3 of a cylindrical shape for connecting the first and second connecting members are provided. The rubber block 3 is divided by a partition wall 6 into a first chamber 8 and a second chamber 9 and an orifice passage 34 is disposed to communicate with both chambers. The orifice passage 34 and the first chamber 8 are adapted to communicate with each other by an intermediate opening portion 37 which is opened and closed by a passage length adjustable valve 38 and passage end opening portions which are always open. The rubber block 3 has a cylindrical portion 5, the wall of which serves at a part thereof as a movable wall portion 12.
    Type: Grant
    Filed: June 14, 1995
    Date of Patent: November 5, 1996
    Assignee: Yamashita Rubber Kabushiki Kaisha
    Inventors: Osamu Maruyama, Kazutoshi Satori
  • Patent number: 5570843
    Abstract: A fuel injection valve includes a valve-closure member which is provided with semicircular flattenings. The deflecting surfaces delimiting the flattenings and formed obliquely to the longitudinal valve axis cause a rotational energy to be applied to the fuel. The application of rotational energy to the fuel makes it possible to clearly reduce the change in flow rate caused by the rotational position of the needle, so that the variance in the static flow rate is considerably decreased. The valve is particularly suitable for application in fuel injection systems of mixture-compressing internal combustion engines having externally supplied ignition.
    Type: Grant
    Filed: January 23, 1995
    Date of Patent: November 5, 1996
    Assignee: Robert Bosch GmbH
    Inventors: Joerg Heyse, Michael Klaski
  • Patent number: 5568847
    Abstract: A device for providing a rigid mechanical link with frequency cut-off between two structures, the device comprising a rigid tie-rod (14) the ends of which are secured to the two structures (10, 12) and a cylinder and piston assembly (16, 18) in parallel with the tie-rod (14), the two ends of the cylinder (16) being interconnected by a duct (22) which, together with the cylinder (16), is filled with a liquid of very low viscosity, the device providing filtering of a low excitation frequency applied to one of the structures and preventing the transmission of this frequency to other structures.
    Type: Grant
    Filed: October 5, 1994
    Date of Patent: October 29, 1996
    Assignee: Bertin & Cie
    Inventors: Jean-Claude Guilloud, Daniel Trouchet, Michel Lapautre, Marc Lepretre
  • Patent number: 5562297
    Abstract: An engagement between a connecting element and a front fork which has a crown portion and two shock absorbing devices are connected to the crown portion respectively, each one of the shock absorbing devices connecting to a connecting tube and the connecting tube connecting to an extending leg, each of the connecting tubes having a first support and a second support extending radially therefrom and the first and the second supports having a first and a second threaded holes respectively defined therein, a connecting element having two side plates and each of which having a first and a second holes defined therein and having a first and a second recesses defined in a surface facing to the first and the second supports so as to respectively receive the first and the second supports therein, a bolt extending through the first hole, the first recess and being engaged with the first threaded hole, a rod extending through the second hole, the second recess and being threadedly engaged with the second threaded hole b
    Type: Grant
    Filed: December 12, 1995
    Date of Patent: October 8, 1996
    Inventor: Chun-San Lin
  • Patent number: 5560688
    Abstract: A pressure control apparatus for adjusting the brake pressure in a braking system of a vehicle comprises a reservoir in which a pressure fluid is stored, an outlet through which the pressure fluid is discharged, at least one brake cylinder of the braking system, inlet and outlet valves through which the pressure fluid is supplied to and discharged from the brake cylinder, and a digital controller which controls the opening and closing of the inlet and outlet valves to minimize the deviation between an actual value and a command variable. The digital controller comprises individual controllers associated with the inlet and outlet valves. The individual controllers operate in accordance with a changeable PIDD.sup.2 control formula. The digital control further comprises a three-stage controller connected downstream of the individual controllers and adjustable low pass filters for the inlet and outlet valves. A pressure phase detector determines the current pressure phase to be set (i.e.
    Type: Grant
    Filed: February 22, 1995
    Date of Patent: October 1, 1996
    Assignee: Wabco Vermogensverwaltungs-GmbH
    Inventors: Hartmut Schappler, Jorg Schroder-Berg, Detlev Neuhaus
  • Patent number: 5558409
    Abstract: Electrohydraulic braking applied to a plurality of automotive vehicle braking channels operates to drive brake pressure modulator position toward a position corresponding to a braking input and corrected for channel to channel braking variations and vehicle deceleration error. A function for adapting the braking input to a position command is provided for each channel and is periodically adapted in accord with a difference between the channel's brake pressure modulator position error and a desired position error.
    Type: Grant
    Filed: December 14, 1994
    Date of Patent: September 24, 1996
    Assignee: General Motors Corporation
    Inventors: Allen J. Walenty, Kevin G. Leppek, Alexander Kade
  • Patent number: 5558185
    Abstract: A device for actuating a piston located in a cylinder of a disk brake. A push rod translationally secured to the piston is connected to a lever through a ball joint. The lever extend through an elongated opening in an end member secured to the cylinder. The end member has an inclined plane which forms a cam surface with respect to an axial plane of the cylinder. A roller member attached to the lever engages the inclined plane at a single point of engagement. An input force applied to the lever causes the roller member to move on the inclined plane and impart pure axial translational movement to the push rod to correspondingly move the piston within the cylinder and correspondingly effect an actuation of the disk brake.
    Type: Grant
    Filed: April 19, 1994
    Date of Patent: September 24, 1996
    Assignee: AlliedSignal Freni SPA
    Inventors: Pasquale Tribuzio, Angelantonio Errico
  • Patent number: 5556173
    Abstract: A device and method for terminating an automatic braking process in a motor vehicle ensures that the automatic braking process is reliably switched off. The relative movement between the pressure rod of the brake system and a component which can be moved with respect thereto within a defined movement play is detected by two control switches, namely a make contact and a break contact which are actuated via a common switching cam. A switching process of the control switches takes place whenever the brake pedal is moved in the direction of its rest position. If a switching process which corresponds to this relative movement takes place during an automatic braking process, the braking process is terminated.
    Type: Grant
    Filed: November 8, 1994
    Date of Patent: September 17, 1996
    Assignee: Mercedes-Benz AG
    Inventors: Manfred Steiner, Christoph Steffi
  • Patent number: 5553713
    Abstract: A vibration damper assembly having a spring support. The spring support comprises a first support with a spring plate and a second support with a spring plate, whereby at least one spring plate is axially adjustable, so that the spring tension of a spring between the spring plates can be changed, the spring support also a comprising locking device which is active between the adjustable spring plate and the corresponding support, characterized by the fact that the locking device is loosened for the axial adjustment of the spring plate so that during the axial adjustment, the spring plate can be moved independently of the locking means from any desired position into another position without twisting, and the locking device is held in this position.
    Type: Grant
    Filed: November 23, 1994
    Date of Patent: September 10, 1996
    Assignee: Fichtel & Sachs AG
    Inventors: Heinz Sydekum, Manfred Angles, Frank Hassmann
  • Patent number: 5551766
    Abstract: An empty/load mechanism for controlling the brake pressure on a railroad car is mounted inboard on the web of the car body side sill having a lower flange. A pivotable sensing arm reaches around the side sill flange and has a horizontal contact shaft at its free end for contact with the upper surface of a truck side frame for operating the mechanism in response to the distance between the car body and the truck.
    Type: Grant
    Filed: October 11, 1994
    Date of Patent: September 3, 1996
    Assignee: Ellcon National, Inc.
    Inventor: Daniel H. Brushwood
  • Patent number: 5547264
    Abstract: The invention is directed to an arrangement for controlling a braking force applied to a rear wheel in a certain relationship with a braking force applied to a front wheel, so as to provide an ideal braking force distribution. Pressure control valves are disposed in a hydraulic circuit which communicates a master cylinder with at least a rear wheel cylinder. There are provided an auxiliary power source for discharging a power pressure and a hydraulic booster for regulating the power pressure and actuating the master cylinder. A changeover valve is disposed between the master cylinder and the control valves, and selectively placed in one of a first operating position for communicating the control valves with the master cylinder and blocking the communication between the control valves and the hydraulic booster, and a second operating position for communicating the control valves with the hydraulic booster and blocking the communication between the control valves and the master cylinder.
    Type: Grant
    Filed: November 2, 1993
    Date of Patent: August 20, 1996
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Kenji Tozu, Kenji Asano, Noriaki Hattori
  • Patent number: 5547050
    Abstract: A shock absorber valve for a hydraulic telescoping strut shock absorber, has, running through a valve body, passages whose respective outlet-side openings are covered by ring-shaped valve discs, whereby the valve discs and the valve body are fastened and axially braced in line. A fully-automated assembly with short cycle times using the dry process can be made possible, whereby a valve closing force independent of tolerances is achieved by using a method which generates as few chips from cutting and machining as possible. To achieve this, the valve discs and the valve body are fastened and prestressed onto a cylindrical component using a fastening element, which fastening element is non-detachably fixed to the cylindrical component.
    Type: Grant
    Filed: May 6, 1994
    Date of Patent: August 20, 1996
    Assignee: Fichtel & Sachs AG
    Inventor: Hubert Beck
  • Patent number: 5505281
    Abstract: A hydraulic control system provides various internal mechanisms for the control of the internal resistance of the telescoping cylinders of the system. Various devices and principles are provided for the external or remote adjustment of the internal resistance control mechanisms of the cylinders. In addition, various types of readouts are provided in order to determine the internal working condition(s) of the cylinder(s). Fluid systems (hydraulic or pneumatic) are provided for the determination of the working condition and internal resistance adjustment of a single cylinder, and further for such determination and adjustment of plural cylinders either collectively or independently. The system is particularly adaptable to use with exercise machines of various types, allowing the user of such a machine to adjust the internal resistance of the cylinder, and to determine the amount of work being expended due to the readout of the internal working condition of the cylinder.
    Type: Grant
    Filed: March 21, 1995
    Date of Patent: April 9, 1996
    Inventor: W. Ken Lee
  • Patent number: 5503250
    Abstract: A brake system for a vehicle having a traction control or anti-spin function for controlling wheel slip on differentially driven wheels of a vehicle. The system includes left and right fluid pressure operated brake mechanisms associated with left and right driven wheels of the vehicle. First and second brake valves control the communication of fluid pressure to the left and right brake mechanisms. In normal operation, an operator actuatable treadle concurrently operates both valves to simultaneously apply fluid pressure to the brake mechanisms as a function of treadle depression. Each brake valve includes a pilot pressure operated section for actuating a main fluid control section. Wheel speed sensors associated with the left and right driven wheels continuously monitor the rotational speed of the wheels.
    Type: Grant
    Filed: February 14, 1994
    Date of Patent: April 2, 1996
    Assignee: Euclid-Hitachi Heavy Equipment Inc.
    Inventors: Ronald Schantz, Eric Gates
  • Patent number: 5503375
    Abstract: Spring apparatus is provided which includes coil springs having intermediate and end coils suitable for interconnection in order to form a continuous spring which maintains a constant load-deflection characteristic over all intermediate coils unaffected by the joint end coils. This configuration therefore finds particular utility in providing bias without compromise of sealing, electromagnetic shielding and/or conductivity.
    Type: Grant
    Filed: November 9, 1994
    Date of Patent: April 2, 1996
    Assignee: Bal Seal Engineering Company, Inc.
    Inventor: Peter J. Balsells
  • Patent number: 5499518
    Abstract: A motorcycle disk brake lock comprises a main body, a locking member, a firs stopping member, a second stopping member, and a third stopping member. The main body is composed of a slot, a receiving space, and a through hole located between the slot and the receiving space in which the locking member is disposed. The locking member is provided with a press portion and a locating rod capable of moving along with the press portion. The first stopping member is located on the locking member. The second stopping portion is located on the inner edge of the receiving space such that the second stopping portion is capable making contact with the first stopping portion so as to prevent the locking member from being driven to move outwards. The third stopping portion is located on the inner edge of the receiving space such that the third stopping portion is parallel to the second stopping portion and is also able to prevent the locking member from being driven to move outwards.
    Type: Grant
    Filed: July 12, 1995
    Date of Patent: March 19, 1996
    Inventor: Jin-Ren Shieh
  • Patent number: 5499865
    Abstract: A brake force control device for a vehicle includes a master cylinder for being operated by an operating member of the vehicle, a wheel brake for being mounted on a vehicle wheel which is connected to the master cylinder through a conduit, a pressure control chamber connected to the wheel brake, a displacement actuator which varies a capacity of the pressure control chamber and a control unit which controls the displacement actuator.
    Type: Grant
    Filed: November 23, 1994
    Date of Patent: March 19, 1996
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Masayoshi Katagiri, Kazuhiko Suzuki, Mitsunari Takeuchi