Patents by Inventor Matthias Wiemer

Matthias Wiemer 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: 11548050
    Abstract: A hot forming tool includes a top tool and a bottom tool, both of which can be moved towards each other. When the hot forming tool is closed, a mold cavity is formed between the top tool and the bottom tool, with the top tool and/or the bottom tool being divided into at least two segments. The hot forming tool has one segment designed as a heating segment. The heating segment includes a compensating element on a side thereof opposite the mold cavity, to compensate for a thermal expansion of the heating segment in the press stroke direction.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: January 10, 2023
    Assignee: BENTELER AUTOMOBILTECHNIK GMBH
    Inventors: Oliver Luetkemeyer, Matthias Wiemers, Robert Stockter
  • Publication number: 20190176203
    Abstract: A hot forming tool includes a top tool and a bottom tool, both of which can be moved towards each other. When the hot forming tool is closed, a mold cavity is formed between the top tool and the bottom tool, with the top tool and/or the bottom tool being divided into at least two segments. The hot forming tool has one segment designed as a heating segment. The heating segment includes a compensating element on a side thereof opposite the mold cavity, to compensate for a thermal expansion of the heating segment in the press stroke direction.
    Type: Application
    Filed: February 14, 2019
    Publication date: June 13, 2019
    Applicant: BENTELER Automobiltechnik GmbH
    Inventors: Oliver LUETKEMEYER, Matthias WIEMERS, Robert STOCKTER
  • Patent number: 10245632
    Abstract: A hot forming tool includes a top tool and a bottom tool, both of which can be moved towards each other. When the hot forming tool is closed, a mold cavity is formed between the top tool and the bottom tool, with the top tool and/or the bottom tool being divided into at least two segments. The hot forming tool has one segment designed as a heating segment. The heating segment includes a compensating element on a side thereof opposite the mold cavity, to compensate for a thermal expansion of the heating segment in the press stroke direction.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: April 2, 2019
    Assignee: BENTELER AUTOMOBILTECHNIK GMBH
    Inventors: Oliver Luetkemeyer, Matthias Wiemers, Robert Stockter
  • Publication number: 20160175910
    Abstract: The present invention relates to a hot forming tool (1) comprising a top tool (2) and a bottom tool (3), both of which can be moved towards each other; and, when the hot forming tool (1) is closed, a mold cavity (19) is formed between the top tool (2)and the bottom tool (3), wherein the top tool (2) and/or the bottom tool (3) is/are divided into at least two segments (4, 5, 6, 7, 8, 9), said hot forming tool being characterized in that one segment is designed as a heating segment (6, 9); and said heating segment (6, 9)comprises a compensating element (16) on a side opposite the mold cavity (19), so that a thermal expansion of the heating segment (6, 9) in the press stroke direction (18) is compensate for.
    Type: Application
    Filed: December 22, 2015
    Publication date: June 23, 2016
    Applicant: BENTELER Automobiltechnik GmbH
    Inventors: Oliver Luetkemeyer, Matthias Wiemers
  • Patent number: 5651738
    Abstract: A clamping mechanism (12) connects a tubular shaft (4) to a journal (11). In its bore, the tubular shaft (4) has a profile which is engaged by the journal (11) by a corresponding counter-profile on its outer face along a length of overlap. The profile and counter-profile are tensioned relative to one another by the clamping mechanism (12). The clamping effect is achieved by taking advantage of the possibility of deforming the cross-section of the tube.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: July 29, 1997
    Assignee: Lohr & Bromkamp GmbH
    Inventors: Werner Jacob, Manfred Niederhufner, Matthias Wiemer