Patents by Inventor Lionel C. Helweg

Lionel C. Helweg 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).

  • Flow sensor for particulate material
    Patent number: 4630489
    Abstract: An apparatus for sensing the flow of particulate material so disclosed which includes a paddle wheel and a sensor for detecting the relation thereof. A mounting block supports the sensor and paddle wheel and is adapted for use with a plurality of different sizes of conduit. Control electronics are connected to the sensor to produce signals representative of rotation of the paddle wheel and of the rotation rate. The paddle wheel may be formed from a single flat sheet of material.
    Type: Grant
    Filed: August 16, 1984
    Date of Patent: December 23, 1986
    Inventors: Glen W. Fisher, Lionel C. Helweg, Rick S. Jones