Patents by Inventor Robert Ristovski

Robert Ristovski 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).

  • Hydraulic feed device and hydraulic system
    Patent number: 9841020
    Abstract: A hydraulic feed device may include a pendulum-slide cell pump having an internal rotor drivingly connected to an external rotor via pendulum slides. A hydraulic positioning device may have a positioning element for changing an eccentricity between the internal rotor and the external rotor. The positioning element may be preloaded by a spring device for setting a maximum eccentricity. The positioning device may have a first pressure adjusting and a second pressure adjusting chamber for adjusting the positioning element. The first pressure adjusting chamber may be permanently hydraulically connected to a pressure side of the pendulum-slide cell pump and configured to hydraulically counteract the spring device. The second pressure adjusting chamber may be controlled via a control valve and hydraulically connected to the pressure side of the pendulum-slide cell pump and configured to hydraulically counteract the spring device.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: December 12, 2017
    Assignee: Mahle International GmBH
    Inventors: Edgar Ammon, Ruediger Knauss, Mark Tepler, Christian Richter, Robert Ristovski
  • HYDRAULIC FEED DEVICE AND HYDRAULIC SYSTEM
    Publication number: 20130343940
    Abstract: A hydraulic feed device may include a pendulum-slide cell pump having an internal rotor drivingly connected to an external rotor via pendulum slides. A hydraulic positioning device may have a positioning element for changing an eccentricity between the internal rotor and the external rotor. The positioning element may be preloaded by a spring device for setting a maximum eccentricity. The positioning device may have a first pressure adjusting and a second pressure adjusting chamber for adjusting the positioning element. The first pressure adjusting chamber may be permanently hydraulically connected to a pressure side of the pendulum-slide cell pump and configured to hydraulically counteract the spring device. The second pressure adjusting chamber may be controlled via a control valve and hydraulically connected to the pressure side of the pendulum-slide cell pump and configured to hydraulically counteract the spring device.
    Type: Application
    Filed: June 25, 2013
    Publication date: December 26, 2013
    Inventors: Edgar Ammon, Ruediger Knauss, Mark Tepler, Christian Richter, Robert Ristovski