Patents by Inventor Hans J. Olschewski

Hans J. Olschewski 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: 4167435
    Abstract: A sealing apparatus for joining container parts of a plastic-lightweight al foil laminate by heat and pressure applied to the laminates when the respective plastic layers are pressed into contact uses a toggle linkage and a yieldable buffer, with a hydraulic actuator to drive the toggle linkage to close a pair of sealing heads together. The toggle linkage permits rapid build-up of pressure to a value predetermined by the construction of the buffer, after which the buffer yields to hold the sealing pressure. The duration of the build-up to sealing pressure comprises no more than 20% of the time interval between initiation of pressure build-up and the start of pressure drop-off at the end of the sealing process.
    Type: Grant
    Filed: March 10, 1978
    Date of Patent: September 11, 1979
    Assignee: FKF Berlin Fleischwaren- und Konservenfabrik Schulz & Berndt GmbH & Co.
    Inventor: Hans J. Olschewski
  • Patent number: D253331
    Type: Grant
    Filed: June 3, 1977
    Date of Patent: November 6, 1979
    Assignee: FKF Fleischwaren- und Konserven-Fabrik, Schultz & Berndt GmbH & Co. KG
    Inventor: Hans J. Olschewski