Patents by Inventor O. Harald S. Eriksen

O. Harald S. Eriksen 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).

  • Self-aligning double-acting simplex plunger pump
    Patent number: 6257843
    Abstract: A self-aligning double-acting simplex plunger pump comprising first and second combined plunger stuffing box and head members or blocks. A manifold is adapted to be abutted against one surface of the blocks and second spaced apart parallel surfaces of the blocks are abutted against the axial end face of a motor. Alignment means on the motor and on the blocks assure proper alignment of the blocks with respect to a piston driven by the motor which reciprocates between the blocks along a longitudinal axis.
    Type: Grant
    Filed: April 26, 2000
    Date of Patent: July 10, 2001
    Assignee: Pumptec, Inc.
    Inventors: James E. Cook, O. Harald S. Eriksen
  • Double acting simplex plunger pump
    Patent number: 5183396
    Abstract: A double acting simplex plunger pump comprising a pair of unique unitary combined stuffing box and head members pre-assembled with a double ended plunger, the subassembly being sandwiched between the axial end face of a drive motor and a flat surface of a unitary manifold means and further characterized by means including check valve means for aligning and holding the members.
    Type: Grant
    Filed: September 27, 1991
    Date of Patent: February 2, 1993
    Inventors: James E. Cook, O. Harald S. Eriksen
  • Double acting simplex plunger pump
    Patent number: 4978284
    Abstract: A double acting simplex plunger pump comprising six unitary extruded members, i.e., a crankcase body, a manifold connected thereto and, at each end of the body a stuffing box member abutted on one face to the body and, on the opposite face, to a head member. The pump also comprises a double ended plunger supported by the body for reciprocation of the ends thereof into pump recesses of the stuffing box members.
    Type: Grant
    Filed: March 1, 1990
    Date of Patent: December 18, 1990
    Inventors: James E. Cook, O. Harald S. Eriksen
  • Pump
    Patent number: D332268
    Type: Grant
    Filed: March 2, 1990
    Date of Patent: January 5, 1993
    Inventors: James E. Cook, O. Harald S. Eriksen
  • Pump
    Patent number: D332269
    Type: Grant
    Filed: January 17, 1991
    Date of Patent: January 5, 1993
    Inventors: James E. Cook, O. Harald S. Eriksen