Patents Assigned to KAMAX Holding GmbH & Co. KG
  • Patent number: 11376651
    Abstract: A rolling tool (5) has a basic body (6) for fastening the rolling tool (5) in a rolling machine (1) and a profiled part (7) for the shaping treatment of a workpiece (2) to be rolled. The basic body (6) and the profiled part (7) are of multi-piece design. The basic body (6) and the profiled part (7), in their interconnected position, are mounted movably relative to one another in a plane perpendicular to the rolling direction (23). The basic body (6) of the rolling tool (5) can also be part of the rolling machine (1).
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: July 5, 2022
    Assignee: KAMAX HOLDING GMBH & CO. KG
    Inventors: Harald Frischkorn, Hilmar Gensert, Armin Jänsch, Christian Ludwig
  • Patent number: 10662993
    Abstract: A high-strength screw (1) includes a head (2) and a threaded portion (5) including a thread (6) and a thread end (9) facing away from the head (2) in an axial direction. The threaded portion (5) includes an unhardened portion (12) starting at the thread end (9) and extending in an axial direction. The unhardened portion (12) has a hardness being reduced compared to an axial middle portion (11) of the threaded portion (5).
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: May 26, 2020
    Assignee: KAMAX HOLDING GMBH & CO. KG
    Inventors: Frank Wagner, Harald Frischkorn
  • Patent number: 10598207
    Abstract: A high-strength screw (2) includes a threaded portion (7) having a thread (8). The screw (2) includes an inner core (16) as seen in cross-section of the screw (2), the core (16) having a first hardness. The screw (2) includes an outer surface layer (17) as seen in cross-section of the screw (2). The screw (2) includes an unhardening layer (18) forming the outer surface layer (17) in the threaded portion (7), the unhardening layer (18) having a second hardness being reduced compared to the first hardness of the core (16).
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: March 24, 2020
    Assignee: KAMAX HOLDING GMBH & CO. KG
    Inventors: Gunther Hartmann, Horst Dieterle
  • Patent number: 9145910
    Abstract: A high strength screw (2), especially an ultra high strength screw (2) having a tensile strength Rm of at least 1400 N/mm2, having a bainite structure has a yield ratio of at least 0.95. The screw (2) belongs to the new strength classes 14.10, 15.10, 16.10 or 17.10. The high yield ratio is realized by heat treatment of the screw (2).
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: September 29, 2015
    Assignee: KAMAX HOLDING GMBH & CO. KG
    Inventors: Horst Dieterle, Uwe Merschrod
  • Patent number: 8784030
    Abstract: A screw (2) has a head (5) including an underhead bearing surface (12). Lubricant pockets (13) are arranged at least in a part of the underhead bearing surface (12). The lubricant pockets (13) serve to contain lubricant and to release the lubricant when tightening a screw joint (1) to prevent galling effects during multiple tightening processes.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: July 22, 2014
    Assignee: KAMAX Holding GmbH & Co. KG
    Inventors: Markus Grobecker, Norbert Bietz, Gunther Hartmann
  • Publication number: 20130183119
    Abstract: A screw (2) has a head (5) including an underhead bearing surface (12). Lubricant pockets (13) are arranged at least in a part of the underhead bearing surface (12). The lubricant pockets (13) serve to contain lubricant and to release the lubricant when tightening a screw joint (1) to prevent galling effects during multiple tightening processes.
    Type: Application
    Filed: January 9, 2013
    Publication date: July 18, 2013
    Applicant: KAMAX HOLDING GMBH & CO. KG
    Inventor: KAMAX Holding GmbH & Co. KG
  • Publication number: 20130129446
    Abstract: A high strength screw (2), especially an ultra high strength screw (2) having a tensile strength Rm of at least 1400 N/mm2, having a bainite structure has a yield ratio of at least 0.95. The screw (2) belongs to the new strength classes 14.10, 15.10, 16.10 or 17.10. The high yield ratio is realized by heat treatment of the screw (2).
    Type: Application
    Filed: November 16, 2012
    Publication date: May 23, 2013
    Applicant: KAMAX Holding GmbH & Co. KG
    Inventor: KAMAX Holding GmbH & Co. KG
  • Patent number: D722866
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: February 24, 2015
    Assignee: KAMAX Holding GmbH & Co. KG
    Inventor: Paul Campbell