Patents by Inventor Detlef Graef

Detlef Graef 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).

  • Electrically insulating cage nut
    Patent number: 9644666
    Abstract: An electrically insulating cage nut (10) having a nut body (12) which is held in a cage (14), in which the nut body (12) has a cylindrical attachment (16) and a broadened holding element (18), and the cylindrical attachment (16) has an internal thread (20) and extends through an opening (22) in the cage (14) to the outside, wherein the internal diameter of the opening (22) is substantially larger than the external diameter of the cylindrical attachment (16), but is smaller than the external size of the holding element (18), and an insulator apparatus (24) is arranged between the cage (14) and cylindrical attachment (16), wherein the insulator apparatus (24) is formed integrally, and in consequence the cage nut (10) consists of only three components (12, 14, 24).
    Type: Grant
    Filed: July 1, 2015
    Date of Patent: May 9, 2017
    Assignee: Nedschroef Schrozberg GmbH
    Inventors: Siegfried Oberndorfer, Detlef Graef
  • Electrically Insulating Cage Nut
    Publication number: 20150345535
    Abstract: An electrically insulating cage nut (10) having a nut body (12) which is held in a cage (14), in which the nut body (12) has a cylindrical attachment (16) and a broadened holding element (18), and the cylindrical attachment (16) has an internal thread (20) and extends through an opening (22) in the cage (14) to the outside, wherein the internal diameter of the opening (22) is substantially larger than the external diameter of the cylindrical attachment (16), but is smaller than the external size of the holding element (18), and an insulator apparatus (24) is arranged between the cage (14) and cylindrical attachment (16), wherein the insulator apparatus (24) is formed integrally, and in consequence the cage nut (10) consists of only three components (12, 14, 24).
    Type: Application
    Filed: July 1, 2015
    Publication date: December 3, 2015
    Inventors: Siegfried Oberndorfer, Detlef Graef
  • Electrically insulating cage nut
    Patent number: 9080592
    Abstract: An electrically insulating cage nut (10) having a nut body (12) which is held in a cage (14), in which the nut body (12) has a cylindrical attachment (16) and a broadened holding element (18), and the cylindrical attachment (16) has an internal thread (20) and extends through an opening (22) in the cage (14) to the outside, wherein the internal diameter of the opening (22) is substantially larger than the external diameter of the cylindrical attachment (16), but is smaller than the external size of the holding element (18), and an insulator apparatus (24) is arranged between the cage (14) and cylindrical attachment (16), wherein the insulator apparatus (24) is formed integrally, and in consequence the cage nut (10) consists of only three components (12, 14, 24).
    Type: Grant
    Filed: May 5, 2011
    Date of Patent: July 14, 2015
    Assignee: Ruia Global Fasteners AG
    Inventors: Siegfried Oberndorfer, Detlef Graef
  • Electrically Insulating Cage Nut
    Publication number: 20130058737
    Abstract: An electrically insulating cage nut (10) having a nut body (12) which is held in a cage (14), in which the nut body (12) has a cylindrical attachment (16) and a broadened holding element (18), and the cylindrical attachment (16) has an internal thread (20) and extends through an opening (22) in the cage (14) to the outside, wherein the internal diameter of the opening (22) is substantially larger than the external diameter of the cylindrical attachment (16), but is smaller than the external size of the holding element (18), and an insulator apparatus (24) is arranged between the cage (14) and cylindrical attachment (16), wherein the insulator apparatus (24) is formed integrally, and in consequence the cage nut (10) consists of only three components (12, 14, 24).
    Type: Application
    Filed: May 5, 2011
    Publication date: March 7, 2013
    Applicant: Ruia Global Fasterners AG
    Inventors: Siegfried Oberndorfer, Detlef Graef