Hand-operated Step Feed Of Long Work Patents (Class 144/108)
  • Publication number: 20090145520
    Abstract: A power tool for drilling a hole in a workpiece made of wood or a wood material. The power tool generally includes a tool housing defining a handle and a motor contained within the tool housing that includes an output shaft that spins about a motor axis. A gear housing is connected to the tool housing. An output spindle is supported for rotation about a spindle axis in the gear housing. The spindle axis is disposed about ninety degrees from the motor axis. A gear portion on the output shaft is engaged to a gear portion on the output spindle. The motor and the gear portions are configured to rotate the output spindle at a speed in range from about five thousand revolutions per minute to about twenty-five thousand revolutions per minute. A cutting member is connected to the output spindle. The cutting member includes fluted cutting blades. A carriage assembly includes a base member and a head member connected by a first post having a first compliant member and a second post.
    Type: Application
    Filed: October 5, 2007
    Publication date: June 11, 2009
    Applicant: BLACK & DECKER Inc.
    Inventors: Robert J. Opsitos, JR., Christopher R. Held, Robert S. Gehret, Richard J. Heavel, Daniel Puzio, Craig A. Schell, Larry T. Albert, Thomas J. Bodine, Daniel L. Gregory
  • Patent number: 4669929
    Abstract: A drilling apparatus especially useful in drilling holes in wooden joists and studs, through which plumbing and electrical cables are to be routed, includes a bracket for engaging a joist or stud and a movable carriage supporting an electric motor and drill bit. A lever mechanism moves the carriage, and hence the motor and drill bit forcibly toward the bracket, forcing the drill bit through the joist. Countertorque from the drill bit is resisted by the coaction of the bracket and the drill bit in the hole being drilled. This avoids possible loss of balance by the operator.
    Type: Grant
    Filed: January 10, 1986
    Date of Patent: June 2, 1987
    Inventor: Karl R. Olesen