Patents Examined by Robert O. Watson
  • Patent number: 4660806
    Abstract: Telescopically slidable tubular members incorporate a hydraulic jack for causing successive minute amounts of relative longitudinal extension thereof. The jack includes a hydraulic piston and cylinder mounted to the rear end of the forward tubular member. This assembly engages a pin inserted in a selected one of a plurality of longitudinally spaced holes in the forward end of the rear tubular member to thereby provide an initial overall length adjustment. A pump is removably mounted to the rear tubular member and is connected to the piston and cylinder assembly via hoses. The telescoping members are positioned diagonally so that a spade at the forward end of the forward tubular member engages an upper portion of a generally vertically oriented stud wall and so that a toothed base member pivotally connected to the rear end of the rear tubular member engages the floor.
    Type: Grant
    Filed: September 12, 1985
    Date of Patent: April 28, 1987
    Inventor: Scott A. Masters