Patents by Inventor Dirk Doellner

Dirk Doellner 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: 9486900
    Abstract: A screwdriver drive design for a screwdriver features an engagement end that is complementary to a fastening element drive design for a fastening element to be screwed. The fastening element drive design includes at least two drive surfaces formed on the fastening element for transmission of a torque suitable for rotation with a tool in a first rotation direction and transition surfaces disposed between these drive surfaces. The transition surfaces form a guide surface for the tool when rotating the tool in the first rotation direction and upon engagement of the tool in the other rotation direction causes an axial outward displacement of the tool, wherein the transition surfaces are formed as outside surfaces, and wherein the outside of the fastening element, outside the transition surfaces and the drive surfaces, lies in a cylindrical jacket forming a recess.
    Type: Grant
    Filed: October 4, 2013
    Date of Patent: November 8, 2016
    Assignee: Arnold Umformtechnik GmbH & Co. KG
    Inventors: Patrick Werner, Gerhard Moeller, Dirk Doellner
  • Publication number: 20140102264
    Abstract: A screwdriver drive design for a screwdriver features an engagement end that is complementary to a fastening element drive design for a fastening element to be screwed. The fastening element drive design includes at least two drive surfaces formed on the fastening element for transmission of a torque suitable for rotation with a tool in a first rotation direction and transition surfaces disposed between these drive surfaces. The transition surfaces form a guide surface for the tool when rotating the tool in the first rotation direction and upon engagement of the tool in the other rotation direction causes an axial outward displacement of the tool, wherein the transition surfaces are formed as outside surfaces, and wherein the outside of the fastening element, outside the transition surfaces and the drive surfaces, lies in a cylindrical jacket forming a recess.
    Type: Application
    Filed: October 4, 2013
    Publication date: April 17, 2014
    Applicant: Arnold Umformtechnik GmbH & Co. KG
    Inventors: Patrick Werner, Gerhard Moeller, Dirk Doellner
  • Patent number: 8549962
    Abstract: A drive design for a fastening element in-stalled using screws, in particular, a screw or a nut, comprises drive surfaces (13) disposed at least approximately in radial planes and transition surfaces (15) disposed between said drive surfaces. In one embodiment of the outside of the surfaces, the surfaces form a saw shape, In this way, when rotation is in one direction in which a tool en-gages with the drive surfaces (13), torque-application results, whereas in the opposite rotational direction a force component is produced that acts on the tool without engaging with the screw drive design. A tool is designed to be complementary to the screw drive design. The screw drive design can be an inner shaping as well an outer shaping. The same applies for a nut. This drive design is intended for designing a screw connector in such a way that it can be tightened once, but cannot be loosened any longer.
    Type: Grant
    Filed: July 28, 2009
    Date of Patent: October 8, 2013
    Assignee: Arnold Umformtechnik GmbH & Co. KG
    Inventors: Patrick Werner, Gerhard Moeller, Dirk Doellner
  • Publication number: 20110283843
    Abstract: A drive design for a fastening element in-stalled using screws, in particular, a screw or a nut, comprises drive surfaces (13) disposed at least approximately in radial planes and transition surfaces (15) disposed between said drive surfaces. In one embodiment of the outside of the surfaces, the surfaces form a saw shape, In this way, when rotation is in one direction in which a tool en-gages with the drive surfaces (13), torque-application results, whereas in the opposite rotational direction a force component is produced that acts on the tool without engaging with the screw drive design. A tool is designed to be complementary to the screw drive design. The screw drive design can be an inner shaping as well an outer shaping. The same applies for a nut. This drive design is intended for designing a screw connector in such a way that it can be tightened once, but cannot be loosened any longer.
    Type: Application
    Filed: July 28, 2009
    Publication date: November 24, 2011
    Inventors: Patrick Werner, Gerhard Moeller, Dirk Doellner