Patents by Inventor Walter Stemme

Walter Stemme 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).

  • Battery mounting chamber for a pocket calculator
    Patent number: 4269908
    Abstract: A support body 6 having recessed trays 3, 4 for accommodating button batteries 28 is outwardly rotatable from a pocket calculator housing 8 through the sliding of a T-sectioned curved extension 7 of the body around a cylindrical pivot face 9 integral with the housing. The free end of the extension has a transverse crossbar 11 that abuts inwardly extending stop ribs 12 on the housing to limit the rotation of the body 6 and to prevent it from becoming completely detached from the housing.
    Type: Grant
    Filed: October 26, 1979
    Date of Patent: May 26, 1981
    Assignee: Braun AG
    Inventor: Walter Stemme