Patents by Inventor Dennis Sewill

Dennis Sewill 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).

  • Method for removing mercury from lamp parts
    Patent number: 6183533
    Abstract: A secondary lamp glass and/or parts processor for removing mercury from recycled lamp parts. The device includes a housing defining a heating chamber. A heater is connected to the heating chamber to heat the lamp glass and retort the mercury on the lamp parts. A hopper is disposed adjacent the heating chamber. The hopper can be disposed proximate the heating chamber such that the heat from the heating chamber can be transferred to the hopper. The hopper can be connected to the heating chamber such that parts from the hopper can be fed into the chamber. A blower fluidly connected to the chamber and the hopper forces air through the chamber and into the hopper as parts are fed into the chamber from the hopper.
    Type: Grant
    Filed: September 15, 1998
    Date of Patent: February 6, 2001
    Inventor: Dennis Sewill
  • Lamp processing machine
    Patent number: 5685335
    Abstract: A lamp processing machine for separating glass, powder and metal lamp components placed within the machine. The machine may include two generally cylindrical, concentrically mounted screens and a tube concentrically mounted between the screens. The screens may be mounted within an enclosure having separate outlets for the powder, glass and metal.
    Type: Grant
    Filed: October 30, 1995
    Date of Patent: November 11, 1997
    Inventors: Dennis Sewill, Timothy J. Sullivan, Richard Potts, Bret Robole, Gregory J. Patten, Wade Beauchaine
  • Lamp processing machine
    Patent number: 5683041
    Abstract: A lamp processing machine for separating glass, powder and metal lamp components placed within the machine. The machine may include two generally cylindrical, concentrically mounted screens and a tube concentrically mounted between the screens. The screens may be mounted within an enclosure having separate outlets for the powder, glass and metal.
    Type: Grant
    Filed: May 20, 1994
    Date of Patent: November 4, 1997
    Inventors: Dennis Sewill, Timothy J. Sullivan, Richard Potts, Bret Robole, Gregory J. Patten, Wade Beauchaine