Patents by Inventor Prantik Guha Biswas

Prantik Guha Biswas 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).

  • Compact filter assembly for removing oil mist and odor from an airstream
    Patent number: 9120042
    Abstract: A device for removing oil mist and odors from an airstream comprising a base having an air inlet in the lower end thereof for receiving an airstream. A first tubular filter has a first end and a second end. The first end is closed, and the second end is mounted on the base wherein the first tubular filter defines an inner chamber that is in communication with the air inlet. A second tubular filter is mounted on the base. The second tubular filter surrounds the first tubular filter and defines an outer chamber therebetween. An opening is formed through the base. The opening connects the outer chamber with the air inlet. A valve element is disposed in the base. The valve element allows flow from the outer chamber to the air inlet when pressure in the outer chamber exceeds pressure in the air inlet.
    Type: Grant
    Filed: August 30, 2013
    Date of Patent: September 1, 2015
    Assignee: American Sterilizer Company
    Inventors: Prantik Guha Biswas, Peter J. Buczynski, Kenneth J. Klobusnik
  • COMPACT FILTER ASSEMBLY FOR REMOVING OIL MIST AND ODOR FROM AN AIRSTREAM
    Publication number: 20150059300
    Abstract: A device for removing oil mist and odors from an airstream comprising a base having an air inlet in the lower end thereof for receiving an airstream. A first tubular filter has a first end and a second end. The first end is closed, and the second end is mounted on the base wherein the first tubular filter defines an inner chamber that is in communication with the air inlet. A second tubular filter is mounted on the base. The second tubular filter surrounds the first tubular filter and defines an outer chamber therebetween. An opening is formed through the base. The opening connects the outer chamber with the air inlet. A valve element is disposed in the base. The valve element allows flow from the outer chamber to the air inlet when pressure in the outer chamber exceeds pressure in the air inlet.
    Type: Application
    Filed: August 30, 2013
    Publication date: March 5, 2015
    Applicant: AMERICAN STERILIZER COMPANY
    Inventors: Prantik Guha Biswas, Peter J. Buczynski, Kenneth J. Klobusnik
  • Sterilizer
    Patent number: D703343
    Type: Grant
    Filed: August 21, 2013
    Date of Patent: April 22, 2014
    Assignee: American Sterilizer Company
    Inventors: Prantik Guha Biswas, Mark E. Chiffon, Michael Levar, Renee Brown