Patents by Inventor Klaus Hammen

Klaus Hammen 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: 6012610
    Abstract: A device for emptying a film tube 15 containing a pasty substance comprises a cap structure 11 including a transverse wall 12 supporting the front of the tube, a cylindrical flange 13 formed on the wall for receiving the front end of the tube, and a dispensing pipe 17. The pipe 17 extends from a recess 16 formed in the wall 12 and having an at least partially circular-cylindrical shape, with a spike 18 being integrally formed at the center of the recess and extending parallel to the axis of the tube. The tip 19 of the spike is retracted from the plane of the wall 12. When dispensing pressure is exerted on the tube 15, the portion of the tube film overlying the recess 16 will bulge into the recess, until its central part is scratched by the tip 19 of the spike and thus caused to burst. The content of the tube can then flow into the recess 16 surrounding the spike 18 and out through the pipe 17.
    Type: Grant
    Filed: February 5, 1997
    Date of Patent: January 11, 2000
    Assignee: Thera Patent GmbH & Co. KG Gesellschaft fur Industrielle Schutzrechte
    Inventors: Helmut Pauser, Gerd Brandhorst, Klaus Hammen, Wolf-Dietrich Herold
  • Patent number: 5927562
    Abstract: A device suited for dispensing a dental substance comprises a cartridge 20 or receiving the substance, with a curved dispensing nozzle 22 disposed at the front end and a flange 21 of octagonal cross-section provided at the rear end of the cartridge. The flange 21 serves to engage a slide-in socket 16 of an applicator 10 which includes a piston rod 12 for advancing a dispensing piston 23 disposed in the cartridge 20. In the retracted position of the piston rod 12, the cartridge 20 may be laterally inserted into the slide-in socket 16 of the applicator 10. The socket has two parallel walls spaced by a distance which is between the largest and the smallest diameter of the octagonal flange 21.
    Type: Grant
    Filed: November 7, 1997
    Date of Patent: July 27, 1999
    Assignee: Thera Patent GmbH & Co. KG Gesellschaft Fuer Industrielle Schutzrechte
    Inventors: Klaus Hammen, Gerd Brandhorst
  • Patent number: D403063
    Type: Grant
    Filed: February 25, 1997
    Date of Patent: December 22, 1998
    Assignee: Thera Patent GmbH & Co.
    Inventors: Gerd Brandhorst, Klaus Hammen