Patents by Inventor MICHAEL J FLAHERTY

MICHAEL J FLAHERTY 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).

  • Spindle locking apparatus for a rotary power tool
    Patent number: 10850358
    Abstract: A spindle locking apparatus for power tools having a spindle mounted for rotation within a tubular housing. The locking apparatus includes a locking sleeve disposed between the spindle and its tubular housing, a locking collar surrounding the tubular housing radially outboard of the locking sleeve, and a set of drive pins mechanically coupling the locking collar to the locking sleeve through axial slots in the tubular collar. The inner periphery of the locking sleeve is shaped to lockingly engage a flat-sided portion of the spindle, and a spring element biases the locking sleeve away from the flat-sided portion of the spindle to unlock the spindle. The locking collar is axially shiftable against the spring bias as permitted by the slots in the tubular housing to bring the locking sleeve into locking engagement with the flat-sided portion of the spindle to prevent spindle rotation.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: December 1, 2020
    Assignee: G.A.W. Inc.
    Inventors: Robert Arthur, Nathaniel P Wenzel, Nicholas J Russell, Michael J Flaherty
  • SPINDLE LOCKING APPARATUS FOR A ROTARY POWER TOOL
    Publication number: 20200171613
    Abstract: A spindle locking apparatus for power tools having a spindle mounted for rotation within a tubular housing. The locking apparatus includes a locking sleeve disposed between the spindle and its tubular housing, a locking collar surrounding the tubular housing radially outboard of the locking sleeve, and a set of drive pins mechanically coupling the locking collar to the locking sleeve through axial slots in the tubular collar. The inner periphery of the locking sleeve is shaped to lockingly engage a flat-sided portion of the spindle, and a spring element biases the locking sleeve away from the flat-sided portion of the spindle to unlock the spindle. The locking collar is axially shiftable against the spring bias as permitted by the slots in the tubular housing to bring the locking sleeve into locking engagement with the flat-sided portion of the spindle to prevent spindle rotation.
    Type: Application
    Filed: November 30, 2018
    Publication date: June 4, 2020
    Applicant: G.A.W. INC
    Inventors: ROBERT ARTHUR, NATHANIEL P WENZEL, NICHOLAS J RUSSELL, MICHAEL J FLAHERTY