Patents by Inventor Darwin L. Steffensen

Darwin L. Steffensen 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: 9788476
    Abstract: A planter system includes a planter having an unloading valve and a controller. The unloading valve is fluidly coupled between an inlet and an outlet of a pump. The unloading valve is configured to receive a fluid at a supply pressure, to supply a first portion of the fluid from the inlet to a hydraulic planter system at an unloading pressure less than the supply pressure, and to recirculate a remainder of the fluid to the pump via the outlet. The controller is communicatively coupled to the unloading valve and to the pump. The controller is configured to control the pressure of the fluid supplied to the inlet and to control the unloading pressure of the first portion supplied to the hydraulic planter system.
    Type: Grant
    Filed: June 6, 2016
    Date of Patent: October 17, 2017
    Assignee: CNH Industrial America LLC
    Inventors: Michael M. Beck, Jerry L. Brinkley, Jonathan L. Buelow, Darwin L. Steffensen
  • Patent number: 9769977
    Abstract: A planter system includes a planter having an unloading valve and a controller. The unloading valve is fluidly coupled between an inlet and an outlet of a pump. The unloading valve is configured to receive a fluid at a supply pressure, to supply a first portion of the fluid from the inlet to a hydraulic planter system at an unloading pressure less than the supply pressure, and to recirculate a remainder of the fluid to the pump via the outlet. The controller is communicatively coupled to the unloading valve and to the pump. The controller is configured to control the pressure of the fluid supplied to the inlet and to control the unloading pressure of the first portion supplied to the hydraulic planter system.
    Type: Grant
    Filed: June 6, 2016
    Date of Patent: September 26, 2017
    Assignee: CNH Industrial America LLC
    Inventors: Michael M. Beck, Jerry L. Brinkley, Jonathan L. Buelow, Darwin L. Steffensen
  • Publication number: 20160278280
    Abstract: A planter system includes a planter having an unloading valve and a controller. The unloading valve is fluidly coupled between an inlet and an outlet of a pump. The unloading valve is configured to receive a fluid at a supply pressure, to supply a first portion of the fluid from the inlet to a hydraulic planter system at an unloading pressure less than the supply pressure, and to recirculate a remainder of the fluid to the pump via the outlet. The controller is communicatively coupled to the unloading valve and to the pump. The controller is configured to control the pressure of the fluid supplied to the inlet and to control the unloading pressure of the first portion supplied to the hydraulic planter system.
    Type: Application
    Filed: June 6, 2016
    Publication date: September 29, 2016
    Inventors: Michael M. Beck, Jerry L. Brinkley, Jonathan L. Buelow, Darwin L. Steffensen
  • Publication number: 20160278281
    Abstract: A planter system includes a planter having an unloading valve and a controller. The unloading valve is fluidly coupled between an inlet and an outlet of a pump. The unloading valve is configured to receive a fluid at a supply pressure, to supply a first portion of the fluid from the inlet to a hydraulic planter system at an unloading pressure less than the supply pressure, and to recirculate a remainder of the fluid to the pump via the outlet. The controller is communicatively coupled to the unloading valve and to the pump. The controller is configured to control the pressure of the fluid supplied to the inlet and to control the unloading pressure of the first portion supplied to the hydraulic planter system.
    Type: Application
    Filed: June 6, 2016
    Publication date: September 29, 2016
    Inventors: Michael M. Beck, Jerry L. Brinkley, Jonathan L. Buelow, Darwin L. Steffensen
  • Patent number: 9357689
    Abstract: A planter system includes a planter having an unloading valve and a controller. The unloading valve is fluidly coupled between an inlet and an outlet of a pump. The unloading valve is configured to receive a fluid at a supply pressure, to supply a first portion of the fluid from the inlet to a hydraulic planter system at an unloading pressure less than the supply pressure, and to recirculate a remainder of the fluid to the pump via the outlet. The controller is communicatively coupled to the unloading valve and to the pump. The controller is configured to control the pressure of the fluid supplied to the inlet and to control the unloading pressure of the first portion supplied to the hydraulic planter system.
    Type: Grant
    Filed: November 11, 2013
    Date of Patent: June 7, 2016
    Assignee: CNH Industrial America LLC
    Inventors: Michael M. Beck, Jerry L. Brinkley, Jonathan L. Buelow, Darwin L. Steffensen
  • Publication number: 20150128834
    Abstract: A planter system includes a planter having an unloading valve and a controller. The unloading valve is fluidly coupled between an inlet and an outlet of a pump. The unloading valve is configured to receive a fluid at a supply pressure, to supply a first portion of the fluid from the inlet to a hydraulic planter system at an unloading pressure less than the supply pressure, and to recirculate a remainder of the fluid to the pump via the outlet. The controller is communicatively coupled to the unloading valve and to the pump. The controller is configured to control the pressure of the fluid supplied to the inlet and to control the unloading pressure of the first portion supplied to the hydraulic planter system.
    Type: Application
    Filed: November 11, 2013
    Publication date: May 14, 2015
    Applicant: CNH America LLC
    Inventors: Michael M. Beck, Jerry L. Brinkley, Jonathan L. Buelow, Darwin L. Steffensen