Patents by Inventor Glenes O. Christianson

Glenes O. Christianson 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).

  • Patent number: 4936245
    Abstract: A device for determining when the material in a grain bin or similar container has reached a predetermined level of fullness. The device includes a transparent tube having feeding tubes in communication between the transparent tube and the interior of the bin. The upper feeding tube is open at a predetermined level which may be adjusted, and the lower tube may also be set to a desired lower level of grain in the bin. Both tubes slant at approximately 45 degrees to the horizontal.
    Type: Grant
    Filed: March 6, 1989
    Date of Patent: June 26, 1990
    Inventor: Glenes O. Christianson
  • Patent number: 4747244
    Abstract: A device for closing and opening the cover on the top of a grain bin. The closing device includes a cap hinged to the bin and having a linkage connected to the cap; the linkage being operable from a location on the ground adjacent the bin.
    Type: Grant
    Filed: February 25, 1987
    Date of Patent: May 31, 1988
    Inventor: Glenes O. Christianson