Patents Assigned to Reserve Oil, Inc.
  • Downhole pump
    Patent number: 4173451
    Abstract: An improved downhole pump includes a pump body connected to the lower end of tubing extending inside a well. Pumping is effected below the standing valve by a plunger reciprocating within a slidable barrel. In one embodiment, the ported barrel is magnetically responsive to stroking of the plunger to define a closed volume on the upstroke and a vented volume on the downstroke, whereby gas lock is eliminated. In another embodiment, the barrel is mechanically responsive to the plunger.
    Type: Grant
    Filed: May 8, 1978
    Date of Patent: November 6, 1979
    Assignee: Reserve Oil, Inc.
    Inventor: Harold Moore, Jr.