Patents by Inventor Robert G. CRISWELL

Robert G. CRISWELL 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).

  • Material delivery system
    Patent number: 10093492
    Abstract: The invention relates to material delivery systems and particularly to pulse controlled material delivery systems.
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: October 9, 2018
    Assignee: IPEG, INC.
    Inventors: Douglas E. Brewster, Keith J. Salamony, Jeffrey S. Rickert, Robert G. Criswell, Brian L. Dowler
  • Material Delivery System
    Publication number: 20170320681
    Abstract: The invention relates to material delivery systems and particularly to pulse controlled material delivery systems.
    Type: Application
    Filed: July 24, 2017
    Publication date: November 9, 2017
    Inventors: Douglas E. Brewster, Keith J. Salamony, Jeffrey S. Rickert, Robert G. Criswell, Brian L. Dowler
  • Material delivery system
    Patent number: 9745149
    Abstract: The invention relates to material delivery systems and particularly to pulse controlled material delivery systems.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: August 29, 2017
    Assignee: IPEG, Inc.
    Inventors: Douglas E. Brewster, Keith J. Salamony, Jeffrey S. Rickert, Robert G. Criswell, Brian L. Dowler
  • Pressure differential proofing method for pneumatic conveying
    Patent number: 9561915
    Abstract: A material handling system. The system includes a plurality of material sources for providing material to be transferred and a plurality of destination locations for receiving material from the material sources, wherein each destination location has a destination valve. The system further includes a distribution mechanism, a plurality of source conveying tubes each connecting a source location to an opening on the distribution mechanism, and a plurality of destination conveying tubes each connecting an opening on the distribution mechanism to a destination location. The system further includes a vacuum source operatively connected to each of the destination valves, a vacuum sensor disposed on each of the source conveying tubes configured to sense a change in pressure in the source conveying tube, and a programmable controller connected to each of the vacuum sensors for determining if a correct connection has been made.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: February 7, 2017
    Assignee: IPEG, Inc.
    Inventors: Raymond Burteen Kelly, Keith J. Salamony, Douglas E. Brewster, Robert G. Criswell, Jeffrey Bickel, Jeffrey S. Rickert, Steven G. Widdowson
  • Pressure Differential Proofing Method for Pneumatic Conveying
    Publication number: 20160272439
    Abstract: A material handling system. The system includes a plurality of material sources for providing material to be transferred and a plurality of destination locations for receiving material from the material sources, wherein each destination location has a destination valve. The system further includes a distribution mechanism, a plurality of source conveying tubes each connecting a source location to an opening on the distribution mechanism, and a plurality of destination conveying tubes each connecting an opening on the distribution mechanism to a destination location. The system further includes a vacuum source operatively connected to each of the destination valves, a vacuum sensor disposed on each of the source conveying tubes configured to sense a change in pressure in the source conveying tube, and a programmable controller connected to each of the vacuum sensors for determining if a correct connection has been made.
    Type: Application
    Filed: March 17, 2016
    Publication date: September 22, 2016
    Inventors: Raymond Burteen KELLY, Keith J. SALAMONY, Douglas E. BREWSTER, Robert G. CRISWELL, Jeffrey BICKEL, Jeffrey S. RICKERT, Steven G. WIDDOWSON
  • Material Delivery System
    Publication number: 20160272438
    Abstract: The invention relates to material delivery systems and particularly to pulse controlled material delivery systems.
    Type: Application
    Filed: January 28, 2016
    Publication date: September 22, 2016
    Inventors: Douglas E. BREWSTER, Keith J. SALAMONY, Jeffrey S. RICKERT, Robert G. CRISWELL, Brian L. DOWLER