Patents by Inventor Raymond G. Hill

Raymond G. Hill has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6899282
    Abstract: An injection spraying system for mixing additives in controlled amounts to water for spraying, which improves handling and calibrating of the concentration of the mixture. The system includes a water tank, mixing globe, pump device, unloader chamber and a worm reduction element for reducing pumping of one gallon of water into one revolution of a drive shaft. The shaft extends through a clutch device and a plurality of injection chambers. The injection chambers supply and meter the amount of additives injected. Rotation of the shaft through the injection chambers loads a set amount of additives for suction into a mixing globe. The unloader chamber controls the spraying cycle and by-pass cycle of fluid flow through the system. The present invention provides a versatile injection spraying system for multiple tasks. The types and amounts of additives sprayed can be easily adjusted without requiring adjustments to sensitive metering or measuring devices.
    Type: Grant
    Filed: July 11, 2003
    Date of Patent: May 31, 2005
    Inventor: Raymond G. Hill
  • Patent number: 4390035
    Abstract: A water-type spray application system employing a hydraulically-operated motor which is operated by the source of supply of the water or base carrier liquid and where the hydraulic motor dependently controls the amount of chemicals injected into the water system for application to lawns. The dependent chemical applications may be independently controlled and independently monitored as to the relationship of injection to the flow of water. The hydraulic motor employs a reciprocating piston and valving arrangement wherein the valving system operates to reverse the pressure differential across the piston upon reaching the end of the piston stroke so that a reciprocating action is obtained of a piston rod. The dependent metering systems involve an adjustable stroke mechanism which draws in liquids by suction and discharges fluids by pressure.
    Type: Grant
    Filed: April 22, 1981
    Date of Patent: June 28, 1983
    Inventor: Raymond G. Hill
  • Patent number: 3967920
    Abstract: This horticulture system mixes and meters two liquids in precise and determinable quantities and provides for appropriate control of the liquid flow. A water tank and a chemical tank are respectively coupled by constant volume pumping means to a mixing and discharge nozzle means. The pumps are driven by a common motor to obtain a predetermined flow ratio. A pressure responsive bypass valve means is connected between the output side of the pumps and the respective tanks to provide an automatic bypass of the respective liquids to their respective tanks in response to the opening and closing of the discharge nozzle. The bypass function of the bypass valve is controlled by pressure generated in the system. Bell means are provided to respond to the presence of flowing chemicals in the chemical output line to indicate that a metered volume or flow of chemicals is occurring and to provide an indication of the relative flow volume.
    Type: Grant
    Filed: May 29, 1975
    Date of Patent: July 6, 1976
    Inventor: Raymond G. Hill