Patents by Inventor Stephen R. Dann

Stephen R. Dann 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).

  • Portable water treatment assembly
    Patent number: 6248244
    Abstract: A portable water treatment assembly and water treatment method are disclosed in which the water to be purified is placed in an upper container together with a suitable bactericide, and is held in that container until the bactericidal action is complete. At that time, an elongate dowel is manually manipulated to open a passage between the upper container and a lower container to drain the purified water through a sediment cartridge in the upper container to remove sediment from the water, and through a cartridge in the lower container containing a medium to remove the bactericide and/or other potentially distasteful ingredients from the water, and the purified water is collected in the lower container for subsequent dispensing and use.
    Type: Grant
    Filed: August 30, 2000
    Date of Patent: June 19, 2001
    Assignee: Eagle Spring Filtration, Inc.
    Inventor: Stephen R. Dann
  • Portable water treatment assembly
    Patent number: 6129841
    Abstract: A portable water treatment assembly and water treatment method are disclosed in which the water to be purified is placed in an upper container together with a suitable bactericide, and is held in that container until the bactericidal action is complete. At that time, an elongate dowel is manually manipulated to open a passage between the upper container and a lower container to drain the purified water through a sediment cartridge in the upper container to remove sediment from the water, and through a cartridge in the lower container containing a medium to remove the bactericide and/or other potentially distasteful ingredients from the water, and the purified water is collected in the lower container for subsequent dispensing and use.
    Type: Grant
    Filed: March 10, 1999
    Date of Patent: October 10, 2000
    Assignee: Eagle Spring Filtration, Inc.
    Inventor: Stephen R. Dann