Patents Assigned to Liquid Level Lectronics, Inc.
  • Electric pump
    Patent number: 4621566
    Abstract: An electrically operated injection pump having an eccentrically mounted cam for reciprocating a spring-biased plunger, said plunger causing the receiving of injection fluid during intake stroke, and the ejection of such fluid during the exhaust stroke.
    Type: Grant
    Filed: October 18, 1985
    Date of Patent: November 11, 1986
    Assignee: Liquid Level Lectronics, Inc.
    Inventors: J. Wallace Johnson, Lewis C. LoMaglio
  • Magnetic control device
    Patent number: 4481389
    Abstract: A magnetic control device having a movable, permanent magnet or fixed-polar portion, a movable element of magnetizable material, i.e., material of high permeability and a plurality of fixed members also of magnetizable material.
    Type: Grant
    Filed: August 2, 1982
    Date of Patent: November 6, 1984
    Assignee: Liquid Level Lectronics, Inc.
    Inventor: J. Wallace Johnson
  • Pump
    Patent number: 4411313
    Abstract: A pump, for injecting chemicals into a well, comprising a pivot arm for synchronous movement with a well pump. The pivot arm causes reciprocation of a plunger within the body of the chemical pump. The plunger, during its upward stroke causes the entry of chemicals from an outside source into the pump body and, during its downward stroke causes the exiting of the chemicals into the well.
    Type: Grant
    Filed: October 19, 1981
    Date of Patent: October 25, 1983
    Assignee: Liquid Level Lectronics, Inc.
    Inventors: J. Wallace Johnson, A. B. M. Abdul Hye