Patents Assigned to Dresser U.K. Limited, A British Company
  • Variable intensity rapping
    Patent number: 4767423
    Abstract: Variable intensity rapping device for use in electrostatic precipitators include means for a mechanism increasing the force with which a drop rod impacts its associated anvil. This mechanism may include a spring or as shown a drop hammer which may be located for operation or swung into an inoperative position by a quarter turn of a drive shaft.
    Type: Grant
    Filed: January 27, 1987
    Date of Patent: August 30, 1988
    Assignee: Dresser U.K. Limited, A British Company
    Inventor: Alan P. Baylis