Patents by Inventor Walter Frankhauser

Walter Frankhauser 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).

  • Packaging receptacle for printed boards
    Patent number: 4029208
    Abstract: A cassette type receptacle is provided with two sets of parallel internal grooves, one set extending lengthwise at one side of the receptacle and the other set of grooves extending lengthwise at the opposite side of the receptacle. Printed boards are insertable through an opening at one end of the receptacles into the spaces between the grooves so as to be closely retained against edgewise displacement but with some lateral play within the grooves. A lid for the end opening hermetically seals the interior of the receptacle.
    Type: Grant
    Filed: December 1, 1975
    Date of Patent: June 14, 1977
    Assignee: Aktiengesellschaft Fur Rationelle Verpackung
    Inventors: Hans Fickler, Walter Frankhauser