Patents by Inventor John R. O'Hehir

John R. O'Hehir 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).

  • METHOD AND APPARATUS FOR PROVIDING HEATED WATER FOR FRACING
    Publication number: 20140026824
    Abstract: In an oil field fracing operation, a direct fire heater is provided that is mobile and self-contained on a trailer chassis. The direct fire heater has the maximum heat exchange possible between a burning gas and the fracing fluid by direct contact therewith. Recirculation is provided to maintain the fracing fluid at the desired temperature. A stack for the direct fire heater is removable for movement from one frac job or frac water heating site to another. Pellets in the stack helps insure a more complete heat exchange between the fracing fluid and the burning gas.
    Type: Application
    Filed: July 26, 2012
    Publication date: January 30, 2014
    Applicant: ROCANDA USA INC.
    Inventors: Andrew M. Romocki, John R. O'Hehir, Carroll D. Gorrell, Rodney C. Kummer, William K. Howard