Patents by Inventor Christhoper David Chapman

Christhoper David Chapman 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 and apparatus for packaging ultra fine powders into containers
    Publication number: 20030101690
    Abstract: The apparatus comprises a powder dispenser portion with an outlet port which opens into a loading chamber (6). A slide gate valve assembly (10) selectively closes the port and a disc valve assembly (5) is provided above the slide gate valve assembly. Containers (19) are loaded into the loading chamber (6) and are located beneath the port and are then purged with inert gas. The slide gate valve assembly (10) and disc valve assembly (5) are then opened to allow container (19) to be filled with ultra fine powder.
    Type: Application
    Filed: November 4, 2002
    Publication date: June 5, 2003
    Inventors: David Edward Deegan, Timothy Paul Johnson, Christhoper David Chapman