Patents by Inventor Brian E. Koster

Brian E. Koster 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).

  • Emergency closure gate
    Patent number: 6073802
    Abstract: An emergency closure for use in grain storage facilities, the emergency closure utilizes a fail-safe closure mechanism such that upon the termination of motive force to the gate the gate is forced into a closed position to terminate the flow of grain or other flowable substance out of it container.
    Type: Grant
    Filed: January 27, 1999
    Date of Patent: June 13, 2000
    Inventors: Darwin L. Sampson, Greg C. Myers, Brian E. Koster