Patents by Inventor Don D. Crowder

Don D. Crowder 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).

  • Delivery system for liquefied gas with maintained delivery tank pressure
    Patent number: 6644039
    Abstract: A delivery system for transferring a delivery fluid from a delivery tank to a customer tank while maintaining a predetermined vessel pressure in the delivery tank, including a pump assembly pumping fluid from the delivery tank and a piping system passing the pumped fluid to the customer tank. A diverter diverts a slip stream portion of the pumped delivery fluid and a heat exchanger assembly selectively heats or cools the slip stream portion for return to the delivery tank. A sensor monitors a selected condition in the delivery tank and a controller responds to the sensor to control the amount and thermal condition of the slip stream returned to the delivery tank.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: November 11, 2003
    Assignee: Corken, Inc.
    Inventors: Michael F. Hughes, Paul J. Lutes, Don D. Crowder, Alan P. Tiefenbrun
  • Delivery system for liquefied gas with maintained delivery tank pressure
    Publication number: 20020083719
    Abstract: A delivery system for transferring a delivery fluid from a delivery tank to a customer tank while maintaining a predetermined vessel pressure in the delivery tank, including a pump assembly pumping fluid from the delivery tank and a piping system passing the pumped fluid to the customer tank. A diverter diverts a slip stream portion of the pumped delivery fluid and a heat exchanger assembly selectively heats or cools the slip stream portion for return to the delivery tank. A sensor monitors a selected condition in the delivery tank and a controller responds to the sensor to control the amount and thermal condition of the slip stream returned to the delivery tank.
    Type: Application
    Filed: December 21, 2001
    Publication date: July 4, 2002
    Applicant: Corken, Inc.
    Inventors: Michael F. Hughes, Paul J. Lutes, Don D. Crowder, Alan P. Tiefenbrun