Patents Assigned to Black & Decker Incorporated
  • Dust extractor
    Patent number: 5605421
    Abstract: A dust extractor (10) for use with a power drill comprises a housing (12) having two compartments (16) and (18) sealed from one another and a tube (26) extending from the opening (16) to an outlet (38). The tube (26) has a valve (28) having a recess (28A) enabling a flow of air to pass from the opening (16) to the outlet 38 whilst the vacuum is applied to the housing. Operation of the valve (28) enables waste material to be drawn from the working site and for suction to be released.
    Type: Grant
    Filed: April 27, 1995
    Date of Patent: February 25, 1997
    Assignee: Black & Decker Incorporated
    Inventor: Phillip Hodgson