Patents by Inventor Larry M. Conrad

Larry M. Conrad 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).

  • Publication number: 20230384132
    Abstract: A sensor assembly for use in synchronizing seed placement and the dispensing of liquid agricultural product during planting. The sensor assembly includes a signal conditioning circuit configured to provide an output signal representing an indication of the presence of liquid agricultural product and seed for use in determining the synchronization of the seed placement with the dispensing of the liquid agricultural product. The presence of both a seed mass component and a liquid mass component of the output signal defines a package mass. The output signal has a pre-defined value and is transmitted to a controller to determine whether there is an error. The controller is configured to generate an error signal that is capable of being displayable on a remote display/user interface system that can be monitored by the system operator.
    Type: Application
    Filed: August 14, 2023
    Publication date: November 30, 2023
    Applicant: AMVAC CHEMICAL CORPORATION
    Inventors: LARRY M. CONRAD, RICHARD L. RICE
  • Patent number: 11740111
    Abstract: A supply tube assembly for measuring a liquid agricultural product application rate. An upstream portion of a supply tube has an upstream portion outlet end. A downstream portion has a downstream portion inlet end. The sensor body assembly includes a sensor body, a first sensing plate, and a second sensing plate. The sensor body has a sensor inlet end positioned to receive an inlet flow of the liquid agricultural product from the upstream portion and a sensor outlet end positioned to receive an outlet flow of the liquid agricultural product. The sensor body is an enclosure having a cross sectional area larger than the cross sectional area of the upstream portion of the supply tube and the downstream portion of the supply tube. Electronic components are configured to measure the liquid agricultural product application rate between the first sensing plate and the second sensing plate.
    Type: Grant
    Filed: January 25, 2022
    Date of Patent: August 29, 2023
    Assignee: AMVAC CHEMICAL CORPORATION
    Inventors: Larry M. Conrad, Richard L. Rice
  • Publication number: 20220183217
    Abstract: A system for dispensing liquid agricultural products with seed includes an agricultural product supply system configured to dispense agricultural products. The system includes a seed tube for introducing seed. A tube-mounted nozzle is positioned on the seed tube for introducing liquid agricultural product into the seed tube. A gaseous fluid line is in fluid connection to a source of gaseous fluid. A gaseous fluid bubble generation assembly is in fluid communication with the gaseous fluid line. The gaseous fluid bubble generation assembly is configured to generate bubbles. The gaseous fluid bubble generation assembly is arranged and constructed so that when the gaseous fluid from the gaseous fluid line is passed therethrough bubbles are generated and agglomerated when the gaseous fluid encounters the liquid agricultural product within the seed tube.
    Type: Application
    Filed: March 1, 2022
    Publication date: June 16, 2022
    Applicant: AMVAC CHEMICAL CORPORATION
    Inventors: Richard L. Rice, KYLE CECIL, LARRY M. CONRAD, WILLIAM C. MARTIN, MATTHEW T. MILLER, JONATHAN E. STURM, TRAVIS M. SWEHLA
  • Publication number: 20220142066
    Abstract: A supply tube assembly for measuring a liquid agricultural product application rate. An upstream portion of a supply tube has an upstream portion outlet end. A downstream portion has a downstream portion inlet end. The sensor body assembly includes a sensor body, a first sensing plate, and a second sensing plate. The sensor body has a sensor inlet end positioned to receive an inlet flow of the liquid agricultural product from the upstream portion and a sensor outlet end positioned to receive an outlet flow of the liquid agricultural product. The sensor body is an enclosure having a cross sectional area larger than the cross sectional area of the upstream portion of the supply tube and the downstream portion of the supply tube. Electronic components are configured to measure the liquid agricultural product application rate between the first sensing plate and the second sensing plate.
    Type: Application
    Filed: January 25, 2022
    Publication date: May 12, 2022
    Applicant: AMVAC CHEMICAL CORPORATION
    Inventors: Larry M. Conrad, RICHARD L. RICE
  • Publication number: 20220095531
    Abstract: A system for dispensing low rate agricultural products, includes a syringe-based agricultural product metering system, at least one agricultural product tube, and an agricultural product metering system. The agricultural product metering system is operably connected to a source of low rate agricultural products. The agricultural product tube is operatively connected to the agricultural product metering system. The agricultural product metering system is configured to dispense liquid low rate agricultural products at a low rate defined as below 3.7 fluid ounces per 1000 row feet.
    Type: Application
    Filed: September 21, 2021
    Publication date: March 31, 2022
    Applicant: AMVAC CHEMICAL CORPORATION
    Inventors: KEITH WOODRUFF, RICHARD L. RICE, LARRY M. CONRAD
  • Patent number: 11231305
    Abstract: A flow sensor apparatus for monitoring a directed stream of an agricultural product from an application port of a supply tube. The directed stream has a target directed portion and an off-target portion. A sensor housing includes a conical flow receiving element and a sensor body. The receiving element has an inlet orifice at a first end and a receiving element outlet at a second end. The first end is smaller than the second end. The sensor body has a sensor inlet end positioned to receive a target directed portion of the directed stream from the receiving element outlet of the conical flow receiving element wherein an off-target portion of the directed stream is not sensed. The sensor housing and sensor element are positioned external to the application port and thus positioned to provide measurement, targeting, and timing of the agricultural product.
    Type: Grant
    Filed: March 15, 2021
    Date of Patent: January 25, 2022
    Assignee: AMVAC CHEMICAL CORPORATION
    Inventors: Larry M. Conrad, Richard L. Rice
  • Publication number: 20210289684
    Abstract: A system for dispensing liquid agricultural products with seed includes a control system; a seed transport mechanism; an agricultural product supply system; and, a seed brush assembly. The seed transport mechanism is affixed to a seed planter row unit. The agricultural product supply system is configured to dispense agricultural products in response to an output signal from the control system. A brush housing structure of the seed brush assembly receives seed from the seed transport mechanism. A brush of the seed brush assembly has bristles positioned within the brush housing structure. The agricultural product supply system is configured to dispense the liquid agricultural products onto the bristles. The bristles are configured to minimize the resistance associated with the passage of seed past the wetted bristles. The liquid agricultural product is transferred from the brushes onto the seed as the seed is dispensed prior to the seed hitting the ground.
    Type: Application
    Filed: June 7, 2021
    Publication date: September 23, 2021
    Applicant: AMVAC CHEMICAL CORPORATIO
    Inventors: RICHARD L. RICE, LARRY M. CONRAD
  • Patent number: 11122730
    Abstract: A system for dispensing multiple low rate agricultural products, includes a syringe-based agricultural product metering system, a number of agricultural product tubes, and an agricultural product metering system. The agricultural product metering system is operably connected to sources of low rate agricultural products. The agricultural product tubes are operatively connected to the agricultural product metering system. The agricultural product metering system is configured to dispense liquid low rate agricultural products at a low rate defined as below 3.7 fluid ounces per 1000 row feet.
    Type: Grant
    Filed: February 1, 2021
    Date of Patent: September 21, 2021
    Assignee: AMVAC CHEMICAL CORPORATION
    Inventors: Keith Woodruff, Richard L. Rice, Larry M. Conrad
  • Patent number: 11058046
    Abstract: A system for dispensing multiple low rate agricultural products that includes a multiple low rate agricultural (MLRA) product application device configured to cooperate with a planting equipment monitor assembly positioned to sense a seed being discharged from high speed planting equipment. Each MLRA product application device comprises a common housing for a number of low rate agricultural product input assemblies.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: July 13, 2021
    Assignee: AMVAC CHEMICAL CORPORATION
    Inventors: Larry M. Conrad, Richard L. Rice, Keith Woodruff
  • Publication number: 20210199481
    Abstract: A flow sensor apparatus for monitoring a directed stream of an agricultural product from an application port of a supply tube. The directed stream has a target directed portion and an off-target portion. A sensor housing includes a conical flow receiving element and a sensor body. The receiving element has an inlet orifice at a first end and a receiving element outlet at a second end. The first end is smaller than the second end. The sensor body has a sensor inlet end positioned to receive a target directed portion of the directed stream from the receiving element outlet of the conical flow receiving element wherein an off-target portion of the directed stream is not sensed. The sensor housing and sensor element are positioned external to the application port and thus positioned to provide measurement, targeting, and timing of the agricultural product.
    Type: Application
    Filed: March 15, 2021
    Publication date: July 1, 2021
    Applicant: AMVAC CHEMICAL CORPORATION
    Inventors: Larry M. Conrad, RICHARD L. RICE
  • Patent number: 11026362
    Abstract: A system for dispensing liquid agricultural products with seed includes a control system; a seed transport mechanism; an agricultural product supply system; and, a seed brush assembly. The seed transport mechanism is affixed to a seed planter row unit. The agricultural product supply system is configured to dispense agricultural products in response to an output signal from the control system. A brush housing structure of the seed brush assembly receives seed from the seed transport mechanism. A brush of the seed brush assembly has bristles positioned within the brush housing structure. The agricultural product supply system is configured to dispense the liquid agricultural products onto the bristles. The bristles are configured to minimize the resistance associated with the passage of seed past the wetted bristles. The liquid agricultural product is transferred from the brushes onto the seed as the seed is dispensed prior to the seed hitting the ground.
    Type: Grant
    Filed: August 24, 2020
    Date of Patent: June 8, 2021
    Assignee: AMVAC CHEMICAL CORPORATION
    Inventors: Richard L. Rice, Larry M. Conrad
  • Publication number: 20210153422
    Abstract: A system for dispensing multiple low rate agricultural products, includes a syringe-based agricultural product metering system, a number of agricultural product tubes, and an agricultural product metering system. The agricultural product metering system is operably connected to sources of low rate agricultural products. The agricultural product tubes are operatively connected to the agricultural product metering system. The agricultural product metering system is configured to dispense liquid low rate agricultural products at a low rate defined as below 3.7 fluid ounces per 1000 row feet.
    Type: Application
    Filed: February 1, 2021
    Publication date: May 27, 2021
    Applicant: AMVAC CHEMICAL CORPORATION
    Inventors: KEITH WOODRUFF, RICHARD L. RICE, LARRY M. CONRAD
  • Patent number: 10948323
    Abstract: An electric measurement method and apparatus for detecting a mass by an electric capacity (permittivity) or a material's dielectric constant, or alternatively, electric inductance (permeability). The mass may be any phase or combination of phases. The mass may be stationary or flowing. It may comprise discrete particles such as grain, or manufactured products such as ball bearings or threaded fasteners, etc. The mass may be a flow element in a rotameter or similar flow measurement device. The sensor comprises a volume which may be completely full or only partially full of the material. The material may be discrete components or a continuum. Sensor signals may be received by existing planter monitoring systems. In some embodiments the flow sensors are positioned external to the application port. In some embodiments sensors may be utilized which are responsive to the refractive index variation of specific chemicals.
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: March 16, 2021
    Assignee: AMVAC CHEMICAL CORPORATION
    Inventors: Larry M. Conrad, Robert J. Weber
  • Publication number: 20210029869
    Abstract: A system for dispensing agricultural products includes an agricultural product container having a memory circuit associated therewith for storing data, the stored data including data unique to the container and the quantity of material dispensed including specific rates of application. An application rate meter device is operatively connected to the agricultural product container and is configured to dispense the agricultural product from the agricultural product container. Precision placement equipment includes a placement tube assembly operatively connected to the application rate meter device to place the agricultural products in the desired locations for efficient activity of the agricultural product. Each placement tube assembly is mounted between depth wheels of a depth control wheel assembly of a planter for placement of product in-furrow between the depth wheels.
    Type: Application
    Filed: October 19, 2020
    Publication date: February 4, 2021
    Inventors: LARRY M. CONRAD, REX A. RYSDAM, NATHANIEL R. CLAUSSEN, RICHARD M. PORTER
  • Publication number: 20200383263
    Abstract: A system for dispensing liquid agricultural products with seed includes a control system; a seed transport mechanism; an agricultural product supply system; and, a seed brush assembly. The seed transport mechanism is affixed to a seed planter row unit. The agricultural product supply system is configured to dispense agricultural products in response to an output signal from the control system. A brush housing structure of the seed brush assembly receives seed from the seed transport mechanism. A brush of the seed brush assembly has bristles positioned within the brush housing structure. The agricultural product supply system is configured to dispense the liquid agricultural products onto the bristles. The bristles are configured to minimize the resistance associated with the passage of seed past the wetted bristles. The liquid agricultural product is transferred from the brushes onto the seed as the seed is dispensed prior to the seed hitting the ground.
    Type: Application
    Filed: August 24, 2020
    Publication date: December 10, 2020
    Applicant: AMVAC CHEMICAL CORPORATION
    Inventors: RICHARD L. RICE, LARRY M. CONRAD
  • Publication number: 20200363244
    Abstract: An electric measurement method and apparatus for detecting a mass by an electric capacity (permittivity) or a material's dielectric constant, or alternatively, electric inductance (permeability). The mass may be any phase or combination of phases. The mass may be stationary or flowing. It may comprise discrete particles such as grain, or manufactured products such as ball bearings or threaded fasteners, etc. The mass may be a flow element in a rotameter or similar flow measurement device. The sensor comprises a volume which may be completely full or only partially full of the material. The material may be discrete components or a continuum. Sensor signals may be received by existing planter monitoring systems. In some embodiments the flow sensors are positioned external to the application port. In some embodiments sensors may be utilized which are responsive to the refractive index variation of specific chemicals.
    Type: Application
    Filed: August 4, 2020
    Publication date: November 19, 2020
    Applicant: AMVAC CHEMICAL CORPORATION
    Inventors: Larry M. Conrad, Robert J. Weber
  • Patent number: 10806073
    Abstract: A system for dispensing agricultural products includes an agricultural product container having a memory circuit associated therewith for storing data, the stored data including data unique to the container and the quantity of material dispensed including specific rates of application. An application rate meter device is operatively connected to the agricultural product container and is configured to dispense the agricultural product from the agricultural product container. Precision placement equipment includes a placement tube assembly operatively connected to the application rate meter device to place the agricultural products in the desired locations for efficient activity of the agricultural product. Each placement tube assembly is mounted between depth wheels of a depth control wheel assembly of a planter for placement of product in-furrow between the depth wheels.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: October 20, 2020
    Assignee: AMVAC CHEMICAL CORPORATION
    Inventors: Larry M. Conrad, Rex A. Rysdam, Nathaniel R. Claussen, Richard M. Porter
  • Patent number: 10739173
    Abstract: An electric measurement method and apparatus for detecting a mass by an electric capacity (permittivity) or a material's dielectric constant, or alternatively, electric inductance (permeability). The mass may be any phase or combination of phases. The mass may be stationary or flowing. It may comprise discrete particles such as grain, or manufactured products such as ball bearings or threaded fasteners, etc. The mass may be a flow element in a rotameter or similar flow measurement device. The sensor comprises a volume which may be completely full or only partially full of the material. The material may be discrete components or a continuum. Sensor signals may be received by existing planter monitoring systems. In some embodiments the flow sensors are positioned external to the application port. In some embodiments sensors may be utilized which are responsive to the refractive index variation of specific chemicals.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: August 11, 2020
    Assignee: AMERICAN CHEMICAL CORPORATION
    Inventors: Larry M. Conrad, Robert J. Weber
  • Publication number: 20200120862
    Abstract: A system for dispensing crop input products from multiple meters per crop row, including: a) a georeferencing module configured to receive and process georeferenced location information; b) a prescriptive control module configured to receive the processed georeferenced location information from the georeferencing module and utilize the georeferenced location information to generate specific prescriptive rate information for individual meters in the field; and, c) a meter controller module operatively connected to the prescriptive control module. The meter controller module is configured to utilize the specific prescriptive rate information to individually control multiple meters per crop row, to simultaneously dispense crop input products at specific prescriptive rates at georeferenced locations throughout the field.
    Type: Application
    Filed: December 18, 2019
    Publication date: April 23, 2020
    Applicant: AMVAC Chemical Corporation
    Inventors: ERIC G. WINTEMUTE, JOHN J. RICHARDSON, RICHARD L. RICE, LARRY M. CONRAD, REX A. RYSDAM, NATHANIEL R. CLAUSSEN, RICHARD M. PORTER
  • Publication number: 20200037497
    Abstract: A system for dispensing agricultural products includes an agricultural product container having a memory circuit associated therewith for storing data, the stored data including data unique to the container and the quantity of material dispensed including specific rates of application. An application rate meter device is operatively connected to the agricultural product container and is configured to dispense the agricultural product from the agricultural product container. Precision placement equipment includes a placement tube assembly operatively connected to the application rate meter device to place the agricultural products in the desired locations for efficient activity of the agricultural product. Each placement tube assembly is mounted between depth wheels of a depth control wheel assembly of a planter for placement of product in-furrow between the depth wheels.
    Type: Application
    Filed: October 8, 2019
    Publication date: February 6, 2020
    Inventors: LARRY M. CONRAD, REX A. RYSDAM, NATHANIEL R. CLAUSSEN, RICHARD M. PORTER