Patents by Inventor David L. Willits

David L. Willits 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).

  • Rotary pulse transducer having stator sealing means
    Patent number: 3997782
    Abstract: A rotary pulse transducer includes a housing having a pair of halves of similar dimensions. An annular photoelectric stator formed from a plastic sheet is employed as a sealing gasket between the halves of the transducer housing. During assembly of the transducer, the stator may be easily moved relative to the housing for alignment purposes by grasping exterior portions of the stator.
    Type: Grant
    Filed: September 6, 1974
    Date of Patent: December 14, 1976
    Assignee: Dynapar Corporation
    Inventor: David L. Willits