Patents by Inventor Walter E. Kupper

Walter E. Kupper 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).

  • Weighing scale of unitary construction
    Patent number: 4381826
    Abstract: A single unit made of a light metal or alloy preferably in a diecast process is shaped to constitute the frame, the levers, and hinged bearings of a platform scale. Even the measuring element can be integrated into this one-piece unit. The resultant scale has a very low profile and is particularly suitable for mass manufacture for applications not requiring excessive resolution as, for example, post office scales or scales for home use.
    Type: Grant
    Filed: October 27, 1980
    Date of Patent: May 3, 1983
    Assignee: Mettler Instrumente AG
    Inventor: Walter E. Kupper