Patents by Inventor Johannes Ruf

Johannes Ruf 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: 10428879
    Abstract: A friction clutch for coupling a drive shaft of a motor vehicle motor to a transmission input shaft has an input part coupled to the drive shaft to introduce a torque of the drive shaft, an output part coupled to the transmission input shaft to extract a torque, a pressing part movable axially relative to the input part and to the output part to press the output part together frictionally with the input part, and a return spring in the form of a leaf spring to position the pressing part in a defined initial position relative to the input part, at least a part of the torque transferred by the input part being transferable through the return spring, where the return spring runs between a torque introduction point and a torque extraction point in an essentially tangential direction and runs at an oblique angle of incidence relative to a radial plane of the friction clutch.
    Type: Grant
    Filed: October 20, 2014
    Date of Patent: October 1, 2019
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Marc Finkenzeller, Daniel Helmer, Martin Chambrion, Johannes Ruf
  • Patent number: 10240645
    Abstract: A dual clutch device having an input side, a first output side, and a second output side, which are arranged rotatably about an axis of rotation, and having a first, radially outer friction clutch for producing frictional engagement between the input side and the first output side and a second, radially inner friction clutch for producing frictional engagement between the input side and the second output side. Each friction clutch has a first friction element, which engages in the input side in a torque-transmitting manner, a second friction element, which engages in the associated output side in a torque-transmitting manner, a control element for providing an axially pressing force on the friction elements, and a leaf spring element, which is spirally wound around the axis of rotation and which is arranged axially between the control element and the friction elements.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: March 26, 2019
    Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: Martin Chambrion, Johannes Ruf
  • Publication number: 20170261043
    Abstract: A dual clutch device having an input side, a first output side, and a second output side, which are arranged rotatably about an axis of rotation, and having a first, radially outer friction clutch for producing frictional engagement between the input side and the first output side and a second, radially inner friction clutch for producing frictional engagement between the input side and the second output side. Each friction clutch has a first friction element, which engages in the input side in a torque-transmitting manner, a second friction element, which engages in the associated output side in a torque-transmitting manner, a control element for providing an axially pressing force on the friction elements, and a leaf spring element, which is spirally wound around the axis of rotation and which is arranged axially between the control element and the friction elements.
    Type: Application
    Filed: August 11, 2015
    Publication date: September 14, 2017
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: Martin Chambrion, Johannes Ruf
  • Publication number: 20160290413
    Abstract: A friction clutch for coupling a drive shaft of a motor vehicle motor to a transmission input shaft has an input part coupled to the drive shaft to introduce a torque of the drive shaft, an output part coupled to the transmission input shaft to extract a torque, a pressing part movable axially relative to the input part and to the output part to press the output part together frictionally with the input part, and a return spring in the form of a leaf spring to position the pressing part in a defined output position relative to the input part, at least a part of the torque transferred by the input part being transferable through the return spring, where the return spring runs between a torque introduction point and a torque extraction point in an essentially tangential direction and runs at an oblique angle of incidence relative to a radial plane of the friction clutch.
    Type: Application
    Filed: October 20, 2014
    Publication date: October 6, 2016
    Inventors: Marc Finkenzeller, Daniel Helmer, Martin Chambrion, Johannes Ruf
  • Patent number: D676758
    Type: Grant
    Filed: June 2, 2011
    Date of Patent: February 26, 2013
    Inventor: Johannes Ruf