Patents by Inventor Douglas Weatherall

Douglas Weatherall 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).

  • Publication number: 20070065538
    Abstract: Disclosed is a kit of a molding system, a valve of a molding system, and a molding system. Each of the kit and the molding system includes a pump configured to be placed in a valve pathway defined by a valve, wherein the pump is configured to pump, responsive to actuation by a pump actuator, a molding material through the valve pathway and towards a mold cavity defined by complementary mold halves. The valve includes a valve body and a pump configured to be placed in a valve pathway defined by the valve body, wherein the pump is configured to pump, responsive to actuation by a pump actuator, a molding material through the valve pathway and towards a mold cavity defined by complementary mold halves.
    Type: Application
    Filed: September 16, 2005
    Publication date: March 22, 2007
    Inventors: Douglas Weatherall, Jim Pilavdzic
  • Publication number: 20060222731
    Abstract: Disclosed herein is a molten molding material dispenser for use in a molding machine and/or molding machine assemblies. The dispenser includes an outlet body defining an outlet, and also includes an outlet cover being operatively movable relative to the outlet, any one of the outlet body, the outlet cover and any combination thereof being magnetically movable, the outlet body and the outlet cover being mechanical-actuation disengaged.
    Type: Application
    Filed: April 1, 2005
    Publication date: October 5, 2006
    Inventors: Alexandre Paris, Douglas Weatherall
  • Publication number: 20050161847
    Abstract: In a reciprocating (RS) injection unit environment, as shown in FIG. 1, a controller of the injection unit is arranged to continuously rotate the screw during both conventional plasticizing operation and shot injection. In this way the RS unit is more efficient, utilizing less energy and producing greater resin output. The injection unit includes a non-return valve adjacent a nozzle, which non-return valve is either configured to rotate with the screw to reduce wear or presented as a ball check style noon-return valve. In an injection molding environment, the rotating screw includes flights that allow granules of resin to melt and mix in spaces between adjacent flights, but the flights are arranged substantially to inhibit excessive displacement of resin around the flights.
    Type: Application
    Filed: January 23, 2004
    Publication date: July 28, 2005
    Inventors: Douglas Weatherall, Alexandre Paris