Patents by Inventor Aaron Robert Tollefsrud

Aaron Robert Tollefsrud 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: 11937534
    Abstract: An agricultural product delivery applicator for delivering particulate product to a field. The applicator includes a supply compartment to hold the product, a pneumatic conveying system, a metering system, and a controller. The pneumatic conveying system includes first delivery line operably connected to an airflow source and to the supply compartment, and a second delivery line operably connected to the airflow source and to the supply compartment. The metering system includes a first metering device associated with the first delivery line and a second metering device associate with the second delivery line. The controller controls the air flow source, the first metering device to meter product to result in a first mixed flow of airflow and product for the first delivery line, and the second metering device to meter product with the airflow to result in a second mixed flow of airflow and product for the second delivery line.
    Type: Grant
    Filed: January 28, 2022
    Date of Patent: March 26, 2024
    Assignee: CNH Industrial America LLC
    Inventors: Aaron Robert Tollefsrud, Sunil Vetal, Rex Leroy Ruppert, Lyle Mangen
  • Patent number: 11793106
    Abstract: An agricultural application implement for delivering particulate product to a field. The implement includes a frame, a bin to hold product, a pneumatic conveying system fixed to the frame, a metering system operably connected between the supply compartment and the pneumatic conveying system, and a bin lift system. The pneumatic conveying system includes an airflow source to provide an airflow, and a delivery line operably connected to the airflow source and to the bin. The delivery line includes a plurality of outlets. The metering system meters product with the airflow to result in a mixed flow of airflow and product for the delivery line. The bin lift system includes hydraulic cylinders coupling the bin to the frame, and a bin lift controller to control the hydraulic cylinders to raise or lower the bin.
    Type: Grant
    Filed: January 7, 2020
    Date of Patent: October 24, 2023
    Assignee: CNH INDUSTRIAL AMERICA LLC
    Inventors: Aaron Robert Tollefsrud, David Hafvenstein, Sunil Vetal
  • Publication number: 20220217897
    Abstract: An agricultural product delivery applicator for delivering particulate product to a field. The applicator includes a supply compartment to hold the product, a pneumatic conveying system, a metering system, and a controller. The pneumatic conveying system includes first delivery line operably connected to an airflow source and to the supply compartment, and a second delivery line operably connected to the airflow source and to the supply compartment. The metering system includes a first metering device associated with the first delivery line and a second metering device associate with the second delivery line. The controller controls the air flow source, the first metering device to meter product to result in a first mixed flow of airflow and product for the first delivery line, and the second metering device to meter product with the airflow to result in a second mixed flow of airflow and product for the second delivery line.
    Type: Application
    Filed: January 28, 2022
    Publication date: July 14, 2022
    Inventors: Aaron Robert Tollefsrud, Sunil Vetal, Rex LeRoy Ruppert, Lyle Mangen
  • Patent number: 11259456
    Abstract: An agricultural product delivery applicator for delivering particulate product to a field. The applicator includes a supply compartment to hold the product, a pneumatic conveying system, a metering system, and a controller. The pneumatic conveying system includes first delivery line operably connected to an airflow source and to the supply compartment, and a second delivery line operably connected to the airflow source and to the supply compartment. The metering system includes a first metering device associated with the first delivery line and a second metering device associate with the second delivery line. The controller controls the air flow source, the first metering device to meter product to result in a first mixed flow of airflow and product for the first delivery line, and the second metering device to meter product with the airflow to result in a second mixed flow of airflow and product for the second delivery line.
    Type: Grant
    Filed: January 7, 2020
    Date of Patent: March 1, 2022
    Assignee: CNH Industrial America LLC
    Inventors: Aaron Robert Tollefsrud, Sunil Vetal, Rex LeRoy Ruppert, Lyle Mangen
  • Publication number: 20210204470
    Abstract: An agricultural product delivery applicator for delivering particulate product to a field. The applicator includes a supply compartment to hold the product, a pneumatic conveying system, a metering system, and a controller. The pneumatic conveying system includes first delivery line operably connected to an airflow source and to the supply compartment, and a second delivery line operably connected to the airflow source and to the supply compartment. The metering system includes a first metering device associated with the first delivery line and a second metering device associate with the second delivery line. The controller controls the air flow source, the first metering device to meter product to result in a first mixed flow of airflow and product for the first delivery line, and the second metering device to meter product with the airflow to result in a second mixed flow of airflow and product for the second delivery line.
    Type: Application
    Filed: January 7, 2020
    Publication date: July 8, 2021
    Inventors: Aaron Robert Tollefsrud, Sunil Vetal, Rex LeRoy Ruppert, Lyle Mangen
  • Publication number: 20210204469
    Abstract: An agricultural application implement for delivering particulate product to a field. The implement includes a frame, a bin to hold product, a pneumatic conveying system fixed to the frame, a metering system operably connected between the supply compartment and the pneumatic conveying system, and a bin lift system. The pneumatic conveying system includes an airflow source to provide an airflow, and a delivery line operably connected to the airflow source and to the bin. The delivery line includes a plurality of outlets. The metering system meters product with the airflow to result in a mixed flow of airflow and product for the delivery line. The bin lift system includes hydraulic cylinders coupling the bin to the frame, and a bin lift controller to control the hydraulic cylinders to raise or lower the bin.
    Type: Application
    Filed: January 7, 2020
    Publication date: July 8, 2021
    Inventors: Aaron Robert Tollefsrud, David Hafvenstein, Sunil Vetal
  • Publication number: 20210205832
    Abstract: The invention provides a control system configured to start/stop metering of particulate material, upon command from a user, or according to a prescription map, with calculated sequencing and delays for starting/stopping boom sections, in order to achieve a substantially uniform distribution of material along a target line. In one aspect, following a command to stop metering, programming of when meters (corresponding to booms sections) turn off is updated to follow a delayed order according to multiple parameters, including ground speed of the machine, and flow of material, as determined by type of material, fan speed, tube diameter and tube length. The control system can dynamically account for such parameters to determine timing for when boom sections are selectively enabled/disabled to achieve the substantially uniform distribution.
    Type: Application
    Filed: January 7, 2020
    Publication date: July 8, 2021
    Inventors: Rex Ruppert, Lyle Mangen, Aaron Robert Tollefsrud, Sunil Vetal
  • Patent number: 7152811
    Abstract: A boom assembly includes a frame, a boom, a boom stabilization cylinder, and a feedback cylinder. The boom is rotatably mounted to the frame to rotate about a first axis. The boom stabilization cylinder is coupled to the boom to resist rotational deflection of the boom about the first axis. The feedback cylinder is coupled to a counterbalancing weight. The feedback cylinder is hydraulically coupled to the boom stabilization cylinder. Movement of the boom stabilization cylinder to resist deflection of the boom causes corresponding movement of the feedback cylinder to lift the counterbalancing weight.
    Type: Grant
    Filed: December 22, 2004
    Date of Patent: December 26, 2006
    Assignee: CNH America LLC
    Inventors: Matthew W. Gunlogson, Aaron Robert Tollefsrud