Patents by Inventor Hans-Joachim Dietzsch

Hans-Joachim Dietzsch 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).

  • Method for the production of thread-like capillaries
    Patent number: 4078909
    Abstract: Thread-like capillary tubes are formed by spinning molten glass material through an annular orifice, blowing a gas centrally into the tube issuing from the orifice, drawing the gas filled tube away from the orifice and controlling the flow rate and pressure of the gas and the drawing rate to reduce the tubes to capillary size with a lumen, an external diameter, and a wall thickness of controlled dimensions.
    Type: Grant
    Filed: December 9, 1976
    Date of Patent: March 14, 1978
    Assignee: Sandwich-Profil GmbH
    Inventors: Hans-Joachim Dietzsch, Otto Dietzsch, Erich Ufer