Patents Represented by Attorney, Agent or Law Firm Boris Parad
  • Hydraulic drive for an agricultural sprayer
    Patent number: 4373669
    Abstract: An agricultural machine for use in dispensing liquid products through a pump driven sprayer is equipped with a hydraulic pump drive system including a rotary flow divider to intensify pumping pressures driving the sprayer pump while preventing unnecessary fluid flow bypassing operations.
    Type: Grant
    Filed: November 28, 1980
    Date of Patent: February 15, 1983
    Assignee: International Harvester Co.
    Inventor: William C. Swanson
  • Check valve assembly with actuator
    Patent number: 4354931
    Abstract: A check valve assembly regulating the fluid flow between the fluid reservoir and filter cartridge chamber is actuated by a valve actuating member movable through and controllable exteriorly of a filter system housing without compromising the housing leak integrity. The actuating member may perform another function of a drain plug for the filter chamber, so that upon removal of the member the check valve assembly will be closed and the chamber fluid drained through a drain plug opening without loss of the reservoir fluid.
    Type: Grant
    Filed: April 13, 1981
    Date of Patent: October 19, 1982
    Assignee: International Harvester Co.
    Inventors: Aldo Allori, John A. Wilger, Thomas F. Reiff