Patents by Inventor Ernst von Lehmann

Ernst von Lehmann 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: 11892059
    Abstract: The present disclosure relates to an eccentric gearing having a first gearing element, which has a first axis and an outer contour having at least one cam, and having a second gearing element, which has a second axis which is constantly held eccentrically in relation to the first axis. The first gearing element is rotatable relative to the second gearing element, and the second gearing element is supported on the outer contour of the first gearing element such that a rotation of the first gearing element effects a rotation of the second axis of the second gearing element about the first axis. The first gearing element has a number N of cams protruding radially, and uniformly distributed in the circumferential direction, in relation to the first axis. The second gearing element is supported at N+1 contact points of the first gearing element, wherein N is at least two.
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: February 6, 2024
    Assignee: MAXON INTERNATIONAL AG
    Inventor: Ernst Von Lehmann
  • Publication number: 20220316573
    Abstract: The present disclosure relates to a transmission having a ring gear in which a flexible gearwheel is arranged, where the flexible gearwheel is connected to a wave generator and the wave generator deforms the flexible gearwheel such that it is in engagement in some regions with the ring gear. The flexible gearwheel includes at least two toothed segments which are connected to one another by way of spring segments and at least one of the toothed segments includes a recess in which a pin element is arranged.
    Type: Application
    Filed: August 12, 2020
    Publication date: October 6, 2022
    Applicant: Maxon International AG
    Inventors: Ernst VON LEHMANN, Astrid ZIMMERMANN
  • Publication number: 20220169335
    Abstract: A torque-transmitting arrangement for the drive train of a muscle-power-operated vehicle with auxiliary motor includes an output shaft, a first input shaft for the transmission of a torque generated by muscle power to the output shaft, a second input shaft for the transmission of a torque generated by the auxiliary motor to the output shaft, and a freewheel function, which prevents a user from having to concomitantly rotate the auxiliary motor when the auxiliary motor is inactive. A mechanical clutch transmits a torque from the second input shaft to the output shaft if, at the first input shaft, a torque prevails which acts in a drive direction of rotation on the output shaft, and transmits no torque from the second input shaft to the output shaft if, at the first input shaft, a torque prevails which acts on the output shaft counter to the drive direction of rotation.
    Type: Application
    Filed: April 2, 2020
    Publication date: June 2, 2022
    Applicant: MAXON INTERNATIONAL AG
    Inventor: Ernst VON LEHMANN
  • Publication number: 20220003296
    Abstract: The present disclosure relates to an eccentric gearing having a first gearing element, which has a first axis and an outer contour having at least one cam, and having a second gearing element, which has a second axis which is constantly held eccentrically in relation to the first axis. The first gearing element is rotatable relative to the second gearing element, and the second gearing element is supported on the outer contour of the first gearing element such that a rotation of the first gearing element effects a rotation of the second axis of the second gearing element about the first axis. The first gearing element has a number N of cams protruding radially, and uniformly distributed in the circumferential direction, in relation to the first axis. The second gearing element is supported at N+1 contact points of the first gearing element, wherein N is at least two.
    Type: Application
    Filed: November 12, 2019
    Publication date: January 6, 2022
    Applicant: Maxon International AG
    Inventor: Ernst VON LEHMANN
  • Publication number: 20080276770
    Abstract: A handle for a tool, such as a screwdriver, has a handle core on which a handle sheath is situated. The handle core may be connectable or connected at a first end to a shaft of the tool. The handle sheath may have three areas in the longitudinal direction. A first area may adjoin the first end of the handle core and may include a semisoft zone, for example having a hardness of 60 to 80 Shore A. A second area, adjoining the first area, may include a soft zone, for example having a hardness of 10 to 60 Shore A. A third area, adjoining the second area, may be include a hard zone, for example having a hardness of greater than 90 Shore A.
    Type: Application
    Filed: May 8, 2008
    Publication date: November 13, 2008
    Inventors: Rainer Blum, Ernst von Lehmann