Patents by Inventor William P. Mangelsen

William P. Mangelsen 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).

  • Reinforced metal clay extruder for hollow core extrusion
    Patent number: 7476097
    Abstract: The present invention provides a clay extruder having a reinforced plunger for shaping clay into desired patterns having a hollow core. The extruder has a screw disposed within a sleeve, a reinforced plunger located on the screw and inside the sleeve, a handle located on the screw and outside of the sleeve, an adaptor disk for forming a hollow core, and a perforated extrusion disk opposite the insertion of the screw into the sleeve. As the plunger pushes clay out the sleeve, an o-ring around the plunger prevents clay from leaking back, and the adaptor disk for forming a hollow core and a perforated disk mold the clay into a desired pattern with a hollow core.
    Type: Grant
    Filed: March 7, 2007
    Date of Patent: January 13, 2009
    Assignee: Sino Harvest Limited
    Inventor: William P. Mangelsen
  • Reinforced metal clay extruder
    Patent number: 7416400
    Abstract: The present invention provides a clay extruder having a reinforced plunger for shaping clay into desired patterns. The extruder has a screw disposed within a sleeve, a reinforced plunger located on the screw and inside the sleeve, a handle located on the screw and outside of the sleeve, and a perforated disk opposite the insertion of the screw into the sleeve. The handle is used to turn the screw and move the plunger through the sleeve. As the plunger pushes clay out the sleeve, an o-ring around the plunger prevents clay from leaking back, and a perforated disk molds the clay into a desired pattern. Metal construction and a thicker side of the plunger allow the extruder to be subjected to high amounts of torque and pressure without damage or failure.
    Type: Grant
    Filed: July 7, 2006
    Date of Patent: August 26, 2008
    Assignee: Sino Harvest Limited
    Inventor: William P. Mangelsen
  • Metal clay extruder
    Patent number: 7413429
    Abstract: The present invention provides a clay extruder usable for shaping clay into desired patterns. The extruder has a screw disposed within a sleeve, a plunger located on the screw and inside the sleeve, a handle located on the screw and outside of the sleeve, and a perforated disk opposite the insertion of the screw into the sleeve. The handle is used to turn the screw and move the plunger through the sleeve. As the plunger pushes clay out the sleeve, an o-ring around the plunger prevents clay from leaking back, and a perforated disk molds the clay into a desired pattern. Metal construction allows the extruder to be subjected to high amounts of torque and pressure without damage or failure.
    Type: Grant
    Filed: June 3, 2005
    Date of Patent: August 19, 2008
    Assignee: Sino Harvest Limited
    Inventor: William P. Mangelsen
  • Clay mixing tool
    Patent number: D475640
    Type: Grant
    Filed: August 28, 2002
    Date of Patent: June 10, 2003
    Assignee: Greensward Co., Ltd.
    Inventor: William P. Mangelsen
  • Frame displaying two images and one impression
    Patent number: D580182
    Type: Grant
    Filed: May 21, 2007
    Date of Patent: November 11, 2008
    Assignee: Sino Harvest Limited
    Inventor: William P. Mangelsen
  • Frame
    Patent number: D633307
    Type: Grant
    Filed: May 21, 2007
    Date of Patent: March 1, 2011
    Assignee: Sino Harvest Limited
    Inventor: William P. Mangelsen
  • Frame
    Patent number: D633309
    Type: Grant
    Filed: May 21, 2007
    Date of Patent: March 1, 2011
    Assignee: Sino Harvest Limited
    Inventor: William P. Mangelsen