Patents by Inventor David Pretzsch

David Pretzsch 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).

  • Incinerator pre-fill chamber
    Patent number: 6928935
    Abstract: An incinerator pre-fill chamber for installation on an incinerator for burning combustible material which allows the operator to continuously re-fill the container of the incinerator with new combustible material while the contents within the container is burning. The incinerator pre-fill chamber includes an elongated case having a first opening aligned in sealing relationship with a second opening disposed in the lid of the incinerator such that when said pre-fill chamber is mounted on the incinerator lid the combustible material can pass from said pre-fill chamber through said first and second openings. The pre-fill chamber further includes a plunger with a platen, at least one side door that opens for loading the material to be burned into the pre-fill chamber, and a trap door that opens when the plunger is actuated thereby permitting the material to pass through the first opening of the pre-fill chamber.
    Type: Grant
    Filed: December 8, 2003
    Date of Patent: August 16, 2005
    Inventors: David Pretzsch, Donald L. Wilson
  • INCINERATOR PRE-FILL CHAMBER
    Publication number: 20050120926
    Abstract: An incinerator pre-fill chamber for installation on an incinerator for burning combustible material which allows the operator to continuously re-fill the container of the incinerator with new combustible material while the contents within the container is burning. The incinerator pre-fill chamber includes an elongated case having a first opening aligned in sealing relationship with a second opening disposed in the lid of the incinerator such that when said pre-fill chamber is mounted on the incinerator lid the combustible material can pass from said pre-fill chamber through said first and second openings. The pre-fill chamber further includes a plunger with a platen, at least one side door that opens for loading the material to be burned into the pre-fill chamber, and a trap door that opens when the plunger is actuated thereby permitting the material to pass through the first opening of the pre-fill chamber.
    Type: Application
    Filed: December 8, 2003
    Publication date: June 9, 2005
    Inventors: David Pretzsch, Donald Wilson