Patents by Inventor Gyorgy Karaszi

Gyorgy Karaszi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4494765
    Abstract: The invention relates to an anti-jackknifing device for an articulated motor vehicle, mainly for an articulated bus, where the torque influencing the jackknifing angle is brought about by a friction brake mechanism around the articulated coupling. The anti-jackknifing device has sensor elements sensing the run-dynamic characteristics connected to a control unit that controls the brake actuating unit of the brake mechanism. One of the elements of the friction brake mechanism braked in relation to each other is connected to one of the two or three vehicle units coupled to each other--i.e. front vehicle, trailer and intermediate vehicle unit--while the other element is connected to at least one of the further two vehicle units. One of the friction elements of the friction brake mechanism according to the invention is formed as brake rod connected to one of the vehicle units, the other friction element i.e.
    Type: Grant
    Filed: May 13, 1982
    Date of Patent: January 22, 1985
    Assignees: Autoipari Kutato Intezet, IKARUS Karosszeria es Jarmugyar
    Inventors: Istvan Ratsko, Jozsef Ivony, Gyorgy Karaszi, Jeno Madi, Nandor Liptai
  • Patent number: 4455035
    Abstract: A anti-jackknifing device for a motor vehicle having two articulated units with a friction brake therebetween has a hydraulic control means for controlling the torque applied by the brake. A hydraulic sensor activating cylinder with two working spaces senses the jackknifing angle between the two units. A three-position four-way reversible valve is connected to the hydraulic brake activating cylinder, between a third port and a check valve and the valve in its first position connects its first and third ports and its second and fourth ports and in its second position connects its first and fourth ports and its second and third ports. A steering angle sensor is provided which determines the desired jackknifing angle therefor.
    Type: Grant
    Filed: February 17, 1982
    Date of Patent: June 19, 1984
    Inventors: Jozsef Ivony, Istvan Ratsko, Gyorgy Karaszy, Jeno Madi
  • Patent number: 4366966
    Abstract: A jackknifing limiting device for articulated motor vehicles in which the vehicle has a front section and a rear section which are connected by a hinge therebetween, the device acting to limit the angle between the front and rear sections when the vehicle is turning, the device comprising a pair of hydraulic cylinders flanking the hinge and connected between the front and rear sections and a reservoir containing hydraulic fluid for the cylinders. Respective pressure regulating valves are connected between the reservoir and the cylinders and open unidirectionally toward the reservoir, with respective solenoid stop valves connected between the regulating valves and the reservoir, the stop valves being normally open. Respective check valves are provided in respective bypass lines connected between the reservoir and the cylinders, the check valves opening unidirectionally toward the cylinders.
    Type: Grant
    Filed: December 24, 1980
    Date of Patent: January 4, 1983
    Assignee: Autoipari Kutato Intezet
    Inventors: Istvan Ratsko, Jozsef Ivony, Gyorgy Karaszy, Jeno Madi
  • Patent number: 4365685
    Abstract: Equipment influencing the jacknifing angle of an articulated motor vehicle, when the vehicle units are in articulated coupling with each other, has a hydraulic piston device with two working spaces arranged outside the longitudinal centerline of the motor vehicle, the piston of which is connected to one unit, while its cylinder is connected to the other vehicle unit. Each working space is connected through a hydraulic valve unit to the hydraulic space of the hydropneumatic energy source, the valve unit has a parallel connected check valve and choke valve closing from the direction of the working space toward the hydropneumatic energy source. An adjustable transfer cross sectional closing element of the choke valve is in functional connection with the sensor element sensing the steering angle and direction of the front axle and the actuating signal of the sensor element is concomitant with the position of one of the choke valves bringing about increased choking.
    Type: Grant
    Filed: August 21, 1980
    Date of Patent: December 28, 1982
    Assignees: Autoipari Kutato Intezet, Ikarus Karosszeria es Jarmugyar
    Inventors: Istvan Ratsko, Jozsef Ivony, Jeno Madi, Gyorgy Karaszi