Patents by Inventor Dan Schaffer

Dan Schaffer 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).

  • Combination valve
    Patent number: 7445025
    Abstract: A valve assembly is disclosed. The valve assembly includes a valve body having an inlet opening, an outlet opening, and a flow passage extending therebetween. A check valve is disposed within the flow passage. A shutoff valve is disposed within the flow passage. A venturi is disposed within the flow passage between the check valve and the shutoff valve. A fluid system into which the valve assembly is installed is also disclosed.
    Type: Grant
    Filed: March 13, 2006
    Date of Patent: November 4, 2008
    Assignee: ITT Manufacturing Enterprises, Inc
    Inventors: Amjed Shafique, Chalard Bunluaphob, Prasert Buranatum, Lisa Hathy-Riles, Dan Schaffer, Mark Hegberg
  • Triple duty valve
    Publication number: 20070209719
    Abstract: A valve assembly is disclosed. The valve assembly includes a valve body having an inlet opening, an outlet opening, and a flow passage extending therebetween. A check valve is disposed within the flow passage. A shutoff valve is disposed within the flow passage. A venturi is disposed within the flow passage between the check valve and the shutoff valve. A fluid system into which the valve assembly is installed is also disclosed.
    Type: Application
    Filed: March 13, 2006
    Publication date: September 13, 2007
    Inventors: Amjed Shafique, Chalard Bunluaphob, Prasert Buranatum, Lisa Hathy-Riles, Dan Schaffer, Mark Hegberg