Patents by Inventor Peter Flueler

Peter Flueler 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 of preventing a fast propagation of cracks at plastic tubes and plastic tubes produced in accordance with such method
    Patent number: 5787934
    Abstract: The method for preventing the propagation of cracks in plastic pipes consists substantially in that at predetermined locations of the tube sections of reduced diameter are foreseen, but to provide these sections with a view of reinstating the static strength simultaneously with a reinforcement which does not form a homogeneous compound with the material of the tube. This is made preferably by application of a correspondingly designed crack stopping element between to tube ends or by inserting such a element between same.
    Type: Grant
    Filed: June 15, 1995
    Date of Patent: August 4, 1998
    Assignee: EMPA Eidgenossische Materialprufungs- und Forschung-Sanstalt
    Inventor: Peter Flueler