Patents Assigned to Eastside Spraying Service Inc.
  • Proportioning sprayer device
    Patent number: 3980231
    Abstract: A reciprocating, double-acting cylinder pump supplies high-pressure water to a spray nozzle. A reciprocating, double-acting insecticide pump is mechanically and adjustably slaved to the water pump piston rod and discharges into the water line to provide an accurate, proportionate amount of insecticide to the water at the discharge nozzle. Control of the flow of water and insecticide occurs at the nozzle.
    Type: Grant
    Filed: April 24, 1975
    Date of Patent: September 14, 1976
    Assignee: Eastside Spraying Service Inc.
    Inventor: John M. Trondsen