Oscillating Working Member Patents (Class 91/266)
  • Fluid-activated motor having magnetic propulsion
    Patent number: 4600849
    Abstract: A self-starting rotational motor capable of providing significant torque in a practical working range is disclosed. The motor employs a magnetic propelling force. The motor is based on the principle of maintaining interacting substantially perpendicular rotor and stator magnet flux fields, one within the other, without gaps or spacing around the entire circumference of the magnet stator. The rotor magnets are controlled and moved relative to the stator magnets by a mechanism whereby the perpendicular rotor and stator magnet flux fields are maintained constantly in interacting relationship to produce turning of the rotor in one direction.
    Type: Grant
    Filed: January 23, 1985
    Date of Patent: July 15, 1986
    Inventors: William J. Lawson, Robert J. Lawson
  • Permanent magnet motor having rockable rotor magnets
    Patent number: 4598221
    Abstract: A self-starting rotational motor capable of providing significant torque in a practical working range is disclosed. The motor employs a magnetic propelling force. The motor is based on the principle of maintaining interacting substantially perpendicular rotor and stator magnet flux fields one within the other without gaps or spacing around the entire circumference of the magnet stator. The rotor magnets are controlled and moved relative to the stator magnets by a mechanism whereby the perpendicular rotor and stator magnet flux fields are maintained constantly in interacting relationship to produce turning of the rotor in one direction.
    Type: Grant
    Filed: March 25, 1985
    Date of Patent: July 1, 1986
    Inventors: William J. Lawson, Robert J. Lawson
  • Variable cylinder hydraulic vibrator and control system
    Patent number: 4388981
    Abstract: Apparatus for incremental cylinder length control in hydraulic seismic vibrators having increased frequency range. The vibrator apparatus (10) of the type having a reaction mass (38) and axial cylinder bore (42) utilizes hydraulically movable end sleeves (86 and 96) in each end of the cylinder bore (42) so that the end sleeves (86 and 96) can be controllably positioned thereby to alter the cylinder volume and adjust the hydraulic drive system (18) for maximum efficiency relative to operating frequency.
    Type: Grant
    Filed: February 23, 1981
    Date of Patent: June 21, 1983
    Assignee: Conoco Inc.
    Inventor: Delbert W. Fair
  • Variable cylinder hydraulic vibrator and control system
    Patent number: RE32995
    Abstract: Apparatus for incremental cylinder length control in hydraulic seismic vibrators having increased frequency range. The vibrator apparatus (10) of the type having a reaction mass (38) and axial cylinder bore (42) utilizes hydraulically movable end sleeves (86 and 96) in each end of the cylinder bore (42) so that the end sleeves (86 and 96) can be controllably positioned thereby to alter the cylinder volume and adjust the hydraulic drive system (18) for maximum efficiency relative to operating frequency.
    Type: Grant
    Filed: October 3, 1984
    Date of Patent: July 25, 1989
    Assignee: Conoco Inc.
    Inventor: Delbert W. Fair