Patents by Inventor Michael David Bourner

Michael David Bourner 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).

  • Power tool and mechanism
    Patent number: 5704433
    Abstract: A power tool has an application mechanism (300) for connection to the output of an epicyclic gearbox provided with a torque control ring. The mechanism has a body (310) journalling a chuck spindle (302). Outside the body is a clutch control arrangement comprising balls (334,336) pressed against the torque control ring by individual springs (330) controlled by a control ring (322) threaded on the body. The mechanism includes a hammer arrangement having rotary and fixed ratchet plates (378,376) and cam ring (308) operable to engage and separate the plates by a lever (360) which projects between the springs (330).
    Type: Grant
    Filed: March 21, 1997
    Date of Patent: January 6, 1998
    Assignee: Black & Decker Inc.
    Inventors: Michael David Bourner, Richard Llewelyn Jones
  • Power tool and mechanism
    Patent number: RE37905
    Abstract: A power tool has an application mechanism (300) for connection to the output of an epicyclic gearbox provided with a torque control ring. The mechanism has a body (310) journalling a chuck spindle (302). Outside the body is a clutch control arrangement comprising balls (334,336) pressed against the torque control ring by individual springs (330) controlled by a control ring (322) threaded on the body. The mechanism includes a hammer arrangement having rotary and fixed ratchet plates (378,376) and cam ring (308) operable to engage and separate the plates by a lever (360) which projects between the springs (330).
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: November 19, 2002
    Assignee: Black & Decker Inc.
    Inventors: Michael David Bourner, Richard Llewelyn Jones