Patents by Inventor Martin KEMMER

Martin KEMMER 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: 12287007
    Abstract: A bearing cage segment for a segmented bearing cage includes a plurality of walls that define a pocket configured to receive a rolling element and an insert element captively retained in an opening in a first one of the plurality of walls. The insert element may be configured to guide a rolling element retained in the bearing cage and/or be configured as a lubricant reservoir.
    Type: Grant
    Filed: December 30, 2022
    Date of Patent: April 29, 2025
    Assignee: AKTIEBOLAGET SKF
    Inventors: Berthold Beyfuss, Hans-Juergen Friedrich, Alfred Radina, Maximilian Soellner, Jonas Schierling, Martin Kemmer
  • Publication number: 20240376932
    Abstract: A cage segment for a segmented bearing cage for large rolling bearings includes first and second lateral sides and first and second ends that together define a pocket configured to receive a rolling body. The first and second lateral sides each include an inner surface configured to face a running surface of the rolling body, and the first and second ends each include an inner surface configured to face end surfaces of the rolling body. The inner surface of the first lateral side includes at least one contact element protruding into the pocket and configured to contact the at least one rolling body, and the inner contact element is continuously connected to the first lateral face. Furthermore, a material thickness of the inner contact element corresponds substantially to a material thickness of the first lateral side at a location spaced from the at least one inner contact element.
    Type: Application
    Filed: May 3, 2024
    Publication date: November 14, 2024
    Inventors: Alfred RADINA, Maximilian SOELLNER, Hans-Juergen FRIEDRICH, Martin KEMMER, Jesko-Henning TANKE
  • Publication number: 20240077111
    Abstract: A cage segment for a segmented bearing cage includes first and second end walls configured to oppose first and second end surfaces of a rolling element and a first side wall and a second side wall extending from the first end wall to the second end wall and defining with the first and second end walls end a pocket for receiving the rolling element. The first and second side walls are configured to oppose a curved side surface of the rolling element. The first and/or second end wall includes at least one protrusion extending into the pocket that is configured to contact an end surface of the rolling element. Also an assembly of the cage segment and the rolling element.
    Type: Application
    Filed: August 11, 2023
    Publication date: March 7, 2024
    Inventors: Berthold BEYFUSS, Hans-Juergen FRIEDRICH, Alfred RADINA, Maximilian Soellner, Jonas Schierling, Martin KEMMER, Jesko-Henning Tanke
  • Publication number: 20230220879
    Abstract: A bearing cage segment for a segmented bearing cage includes a plurality of walls that define a pocket configured to receive a rolling element and an insert element captively retained in an opening in a first one of the plurality of walls. The insert element may be configured to guide a rolling element retained in the bearing cage and/or be configured as a lubricant reservoir.
    Type: Application
    Filed: December 30, 2022
    Publication date: July 13, 2023
    Inventors: Berthold BEYFUSS, Hans-Juergen FRIEDRICH, Alfred RADINA, Maximilian Soellner, Jonas Schierling, Martin KEMMER
  • Publication number: 20230220877
    Abstract: A bearing cage for large rolling-element bearings includes a first side part and a second side part and a plurality of bridge elements connecting the first and second side parts to form a plurality of cage pockets each configured to receive a rolling element. The at least one bridge element and/or the first side part and/or the second side part includes at least one opening, and an insert element is mounted in each of the at least one opening and configured to contact the rolling element.
    Type: Application
    Filed: December 30, 2022
    Publication date: July 13, 2023
    Inventors: Berthold BEYFUSS, Hans-Juergen FRIEDRICH, Alfred RADINA, Maximilian Soellner, Jonas Schierling, Martin KEMMER
  • Publication number: 20050010347
    Abstract: A method and system output a signal of a seatbelt warning device, so that an acoustic signal is output when the ignition is turned on and the belt lock of at least the driver's seat is not engaged. The loudness and/or frequency of the acoustic signal of the seatbelt warning device is variable as a function of at least one operating parameter that influences the interior noise level inside the vehicle.
    Type: Application
    Filed: May 14, 2004
    Publication date: January 13, 2005
    Applicant: PORSCHE AG
    Inventor: Martin Kemmer
  • Patent number: 6407265
    Abstract: Tin polyaalkanecarboxylates having the formula [(R1pR2qSn)rOs]t wherein R1 represents C1-C6 alkyl, branched or straight, substituted or not by one or more hydroxyl groups or halogen atoms, or a phenyl group, substituted or not by one or more hydroxyl groups or halogen atoms, R2 is carboxylic residue selected from (I), (II), (III) or (IV); and p, q, r, s and t have the following meanings: P=3, q=1, r=1, s=) and t=1, p=2, q=2, r=1, s=0, and t=1, p=2, q=1, r=2, s=1 and t=2, have anti-tumor activity.
    Type: Grant
    Filed: January 29, 2001
    Date of Patent: June 18, 2002
    Assignee: Pharmachemie B.V.
    Inventors: Marcel Gielen, Rudolph Willem, Monique Biesemans, Martine Kemmer, Dick de Vos
  • Publication number: 20010039270
    Abstract: Tin polyaalkanecarboxylates having the formula [(R1pR2qSn)rOs]t wherein R1 represents C1-C6 alkyl, branched or straight, substituted or not by one or more hydroxyl groups or halogen atoms, or a phenyl group, substituted or not by one or more hydroxyl groups or halogen atoms, R2 is carboxylic residue selected from (I), (II), (III) or (IV); and p, q, r, s and t have the following meanings: P=3, q=1, r=1, s=) and t=1, p=2, q=2, r=1, s=0, and t=1, p=2, q=1, r=2, s=1 and t=2, have anti-tumor activity.
    Type: Application
    Filed: January 29, 2001
    Publication date: November 8, 2001
    Inventors: Marcel Gielen, Rudolph Willem, Monique Biesemans, Martine Kemmer, Dick de Vos