Patents by Inventor John K. HEICHELBECH

John K. HEICHELBECH 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).

  • DIAPHRAGM PUMP SYSTEM HAVING RE-PRIMING CAPABILITIES
    Publication number: 20150047727
    Abstract: An example system includes a diaphragm pump having a suction port and a discharge port, a urea suction line fluidly coupling a urea supply to the suction port, and a urea discharge line fluidly coupled to the discharge port. A recirculation line fluidly couples the urea discharge line to the urea suction line, and has a flow regulator operationally coupled thereto. A controller is configured to interpret a prime loss condition of the diaphragm pump, and to provide a flow regulator command in response to the prime loss condition.
    Type: Application
    Filed: August 8, 2014
    Publication date: February 19, 2015
    Applicant: Cummins Emission Solutions, Inc.
    Inventors: Srivardhan CHANDRAPATI, Andrew Morgan Myer, Mugdha Naik, Shu Zhang, Xin Jin, Srinivasa Varadan Rajagopalan, John K. HEICHELBECH, Stephen M. Holl