Patents Assigned to Otto Zimmermann GmbH
  • Patent number: 7967115
    Abstract: The invention relates to a brake disc, particularly an internally ventilated brake disc, having at least one friction ring (12), which is connected to a brake-disc chamber (14) via fastening elements, the fastening elements taking the form of threaded bolts (19), which have a cylindrical section (22) and a threaded section (21), which can be screwed into the brake-disc chamber (14) in such a way that the cylindrical section (22) of the threaded bolt (19) extends outward in the radial force direction over an outer circumference (25) of the brake-disc chamber (14), and that the cylindrical sections (22) engage in holding sections (34) of the friction ring (12) and take up the friction ring so as to form an annular gap (36) with respect to the brake-disc chamber (14).
    Type: Grant
    Filed: April 4, 2006
    Date of Patent: June 28, 2011
    Assignee: Otto Zimmermann GmbH
    Inventor: Holger Keller
  • Patent number: D842781
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: March 12, 2019
    Assignee: Otto Zimmermann GmbH
    Inventor: Holger Keller
  • Patent number: D850338
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: June 4, 2019
    Assignee: Otto Zimmermann GmbH
    Inventor: Holger Keller