Patents by Inventor Wilfried Krauthäuser

Wilfried Krauthäuser 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).

  • Perforation Gun System for Sealing Penetration Holes
    Publication number: 20100011944
    Abstract: A perforation gun includes an external gun barrel in the interior of which perforators are located which can be ignited via a fuse extending through the gun barrel and which, after ignition, pierce the gun barrel with perforation holes. A sliding tube or a swellable two-component foam is provided which automatically closes the perforation holes. The swellable two-component foam can be provided in a cartridge located inside the gun barrel and can be broken up by the ignited fuse, thereby allowing foam to escape from the cartridges, allowing it to swell and obliterate the perforation holes. The sliding tube can be displaced after perforation by an adjusting device by at least the diameter of the perforation hole, the sliding tube being located coaxially between the perforators and the gun barrel.
    Type: Application
    Filed: September 28, 2009
    Publication date: January 21, 2010
    Inventors: Rolf ROSPEK, Malte VEEHMAYER, Wilfried KRAUTHÄUSER
  • Perforation gun system for sealing perforation holes
    Patent number: 7607379
    Abstract: A perforation gun includes an external gun barrel in the interior of which perforators are located which can be ignited via a fuse extending through the gun barrel and which, after ignition, pierce the gun barrel with perforation holes. A sliding tube or a swellable two-component foam is provided which automatically closes the perforation holes. The swellable two-component foam can be provided in a cartridge located inside the gun barrel and can be broken up by the ignited fuse, thereby allowing foam to escape from the cartridges, allowing it to swell and obliterate the perforation holes. The sliding tube can be displaced after perforation by an adjusting device by at least the diameter of the perforation hole, the sliding tube being located coaxially between the perforators and the gun barrel.
    Type: Grant
    Filed: September 22, 2004
    Date of Patent: October 27, 2009
    Assignee: Dynaenergetics GmbH & Co. KG
    Inventors: Rolf Rospek, Malte Veehmayer, Wilfried Krauthäuser