Patents by Inventor John Shank

John Shank 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 valve and control system
    Publication number: 20060086923
    Abstract: A valve assembly includes a first gate having at least one opening and a second gate having at least one opening, the second gate being spaced from the first gate. The valve assembly has first and second discs disposed between the first and second gates, each disc having at least one opening, whereby the discs are coupled together for simultaneously rotating between a valve open and a valve closed position. The assembly also includes a biasing element disposed between the first and second discs for normally urging the discs away from one another and toward opposing inner faces of the first and second gates.
    Type: Application
    Filed: September 23, 2005
    Publication date: April 27, 2006
    Applicant: Marotta Controls, Inc.
    Inventors: John Shank, John Albright