Patents by Inventor Rich L. Bloom

Rich L. Bloom 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).

  • Stepped hot gas filter cartridge
    Patent number: 5830250
    Abstract: A regenerable gas filter cartridge for filtering particles from an exhaust gas includes a hollow tube having a perforated portion and an open end portion. The perforated portion has a diameter larger than the diameter of the open end portion. A filtering element is disposed on the hollow tube, and the filtering element extends over the larger diameter of the perforated portion and the smaller diameter of the open end portion.
    Type: Grant
    Filed: March 6, 1996
    Date of Patent: November 3, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Ryan C. Shirk, Rich L. Bloom, Troy K. Ista