Patents by Inventor Jorg FORTMANN

Jorg FORTMANN 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: 12097693
    Abstract: A clamping shaft (12) for a rotationally driven part (14) is described. It comprises at least one fluid chamber (28a, 28b) being located inside a shaft body (16) and being delimited by a piston (30a, 30b) and a cylinder part (32a. 32b). Additionally, the fluid chamber (28a, 28b) is delimited by an elastic clamping region (24a, 24b) having a first diameter if the piston (30a, 30b) and the cylinder part (32a, 32b) are in a first relative position, and a second diameter if the piston (30a, 30b) and the cylinder part (32a, 32b) are in a second relative position. Furthermore, a preloading unit (38) is provided, biasing the piston (30a, 30b) and the cylinder part (32a, 32b) towards the second relative position. Moreover, a printing cylinder unit (10) of a printing machine is presented comprising such a clamping shaft (12). Also, a method for operating a clamping shaft (12) is explained.
    Type: Grant
    Filed: May 7, 2020
    Date of Patent: September 24, 2024
    Assignee: BOBST BIELEFELD GMBH
    Inventors: Alexander Sudermann, Jörg Fortmann
  • Patent number: 11413857
    Abstract: A bearing assembly (26) is described. It is suitable for supporting a printing cylinder or an anilox roll in a printing machine and comprises at least one roller bearing (28, 30) being configured for receiving a shaft (12b, 14b, 16b) associated with the printing cylinder or the anilox roll. Additionally, it has a first support part (32) carrying the roller bearing (28, 30) and a second support part (34) being a carrier element of the printing machine or being configured for being mounted to a carrier element of the printing machine. Furthermore, a fluid chamber (36) is provided acting between the roller bearing (28, 30) and the second support part (34). Moreover, a printing machine is presented wherein a shaft (12b, 14b, 16b) associated with a printing cylinder or an anilox roll thereof is supported by such a bearing assembly (26).
    Type: Grant
    Filed: May 20, 2021
    Date of Patent: August 16, 2022
    Assignee: BOBST BIELEFELD GMBH
    Inventors: Jorg Fortmann, Alexander Sudermann
  • Publication number: 20220194074
    Abstract: A clamping shaft (12) for a rotationally driven part (14) is described. It comprises at least one fluid chamber (28a, 28b) being located inside a shaft body (16) and being delimited by a piston (30a, 30b) and a cylinder part (32a. 32b). Additionally, the fluid chamber (28a, 28b) is delimited by an elastic clamping region (24a, 24b) having a first diameter if the piston (30a, 30b) and the cylinder part (32a, 32b) are in a first relative position, and a second diameter if the piston (30a, 30b) and the cylinder part (32a, 32b) are in a second relative position. Furthermore, a preloading unit (38) is provided, biasing the piston (30a, 30b) and the cylinder part (32a, 32b) towards the second relative position. Moreover, a printing cylinder unit (10) of a printing machine is presented comprising such a clamping shaft (12). Also, a method for operating a clamping shaft (12) is explained.
    Type: Application
    Filed: May 7, 2020
    Publication date: June 23, 2022
    Applicant: BOBST BIELEFELD GmbH
    Inventors: Alexander SUDERMANN, Jörg FORTMANN
  • Publication number: 20210370663
    Abstract: A bearing assembly (26) is described. It is suitable for supporting a printing cylinder or an anilox roll in a printing machine and comprises at least one roller bearing (28, 30) being configured for receiving a shaft (12b, 14b, 16b) associated with the printing cylinder or the anilox roll. Additionally, it has a first support part (32) carrying the roller bearing (28, 30) and a second support part (34) being a carrier element of the printing machine or being configured for being mounted to a carrier element of the printing machine. Furthermore, a fluid chamber (36) is provided acting between the roller bearing (28, 30) and the second support part (34). Moreover, a printing machine is presented wherein a shaft (12b, 14b, 16b) associated with a printing cylinder or an anilox roll thereof is supported by such a bearing assembly (26).
    Type: Application
    Filed: May 20, 2021
    Publication date: December 2, 2021
    Applicant: Bobst Bielefeld GmbH
    Inventors: Jorg FORTMANN, Alexander SUDERMANN