Patents by Inventor Theo L. Eversloh

Theo L. Eversloh 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).

  • Keypad including membrane with replaceable key elements
    Patent number: 5367133
    Abstract: A keypad (10) comprises a membrane having a plurality of switch actuating portions (41). The keypad (10) further comprises key portions (44) corresponding to said switch actuating portions (41) and located on an opposite side of the membrane to said switch actuating portions (41) and a plurality of switch elements (18) located beneath said switch actuating portions (41) of the membrane. The membrane extends across the keypad (10) and provides a water resistant barrier between the switch elements (18) and the key portions (44) of the membrane. Removable buttons (40) are provided for the keypad (10) and are attached to the key portions (44) of the membrane, whereby pressing of the buttons (40) causes flexing of the membrane and actuation of the switch elements (18) by the switch actuating portion of the membrane.
    Type: Grant
    Filed: April 23, 1993
    Date of Patent: November 22, 1994
    Assignee: Motorola, Inc.
    Inventors: Hans-Jurgen Schmidt, Klaus Lindner, Theo L. Eversloh