Patents by Inventor Doug Purdy

Doug Purdy 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).

  • Overmolded rotor
    Patent number: 8444405
    Abstract: A fluid device includes a housing and a rotor assembly disposed in the housing. The rotor assembly includes a core and a coating. The core has a first surface, an oppositely disposed second surface and an outer peripheral surface that extends between the first and second surfaces. The core defines a bore that extends through the first and second surfaces. The coating coats at least a portion of the core. The coating is a water-swellable plastic material.
    Type: Grant
    Filed: September 29, 2009
    Date of Patent: May 21, 2013
    Inventors: Matthew Hollister, Doug Purdy, Dustin Featherstone
  • OVERMOLDED ROTOR
    Publication number: 20100080723
    Abstract: A fluid device includes a housing and a rotor assembly disposed in the housing. The rotor assembly includes a core and a coating. The core has a first surface, an oppositely disposed second surface and an outer peripheral surface that extends between the first and second surfaces. The core defines a bore that extends through the first and second surfaces. The coating coats at least a portion of the core. The coating is a water-swellable plastic material.
    Type: Application
    Filed: September 29, 2009
    Publication date: April 1, 2010
    Inventors: Matthew Hollister, Doug Purdy, Dustin Featherstone