Patents Assigned to Nakao Filter Media Corporation
  • Method for filtering and cleaning a filter bag
    Patent number: 3964883
    Abstract: In an air filter unit, after dust collected by the filter bag is shaken off and exhausted and before normal operation is effected, the air inside the filter chamber but outside the filter bag is fed into the filter bag or a separate dust collector, thereby preventing dust particles from being discharged into the atmosphere along with the clear filtered air during the initial stage of normal operation. Other advantages and details in the construction will be made clear.
    Type: Grant
    Filed: June 11, 1973
    Date of Patent: June 22, 1976
    Assignee: Nakao Filter Media Corporation
    Inventor: Yosinori Nakao