Patents by Inventor Keith S. Dellinger

Keith S. Dellinger 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).

  • Doffer with pneumatic control system
    Patent number: RE30702
    Abstract: Apparatus movable along a spinning frame to doff full bobbins from the spindles thereof and to don empty bobbins onto such spindles. Low pressure pneumatic sensors are provided for emitting a stream of low pressure air into the path of movement of selected elements of the apparatus and generating a pneumatic signal each time a stream of low pressure air is interrupted by the movement of such elements, and a low pressure pneumatic control system receives the pneumatic signals and operates the selected elements of the apparatus in a predetermined sequence.
    Type: Grant
    Filed: October 29, 1979
    Date of Patent: August 11, 1981
    Inventors: Alex J. Keller, Keith S. Dellinger, James L. Ray, Thomas A. Cherry, Erhard A. Fechner