Patents by Inventor Rodney L. Hagman

Rodney L. Hagman 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: 10834862
    Abstract: A disc conditioner to work soil in a forward direction including a main support structure, a secondary support structure that protrudes from the main support structure in the forward direction, a main disc assembly affixed to the main support structure, and a secondary disc assembly that is affixed to the secondary support structure and protrudes from the main disc assembly in the forward direction. The secondary disc assembly generates an oscillating soil and residue flow along a central axis of the disc conditioner that levels the soil.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: November 17, 2020
    Assignee: KUHN KRAUSE, INC.
    Inventors: Tom W. Ankenman, Rodney L. Hagman
  • Patent number: 10225972
    Abstract: A chisel point to shatter compacted soil having a nose that penetrates the soil, a tail that points in an upward direction, a head that extends in a downstream direction from the nose, a body that connects the head to the tail in the downward direction and in the upward direction, and a pair of wings that laterally protrudes from the body in the downstream direction and in a downward direction.
    Type: Grant
    Filed: August 8, 2017
    Date of Patent: March 12, 2019
    Assignee: KUHN KRAUSE, INC.
    Inventors: David H. Weast, Rodney L. Hagman
  • Publication number: 20190059197
    Abstract: A disc conditioner to work soil in a forward direction including a main support structure, a secondary support structure that protrudes from the main support structure in the forward direction, a main disc assembly affixed to the main support structure, and a secondary disc assembly that is affixed to the secondary support structure and protrudes from the main disc assembly in the forward direction. The secondary disc assembly generates an oscillating soil and residue flow along a central axis of the disc conditioner that levels the soil.
    Type: Application
    Filed: March 23, 2018
    Publication date: February 28, 2019
    Applicant: KUHN KRAUSE, INC.
    Inventors: Tom W. ANKENMAN, Rodney L. HAGMAN
  • Publication number: 20190045698
    Abstract: A chisel point to shatter compacted soil having a nose that penetrates the soil, a tail that points in an upward direction, a head that extends in a downstream direction from the nose, a body that connects the head to the tail in the downward direction and in the upward direction, and a pair of wings that laterally protrudes from the body in the downstream direction and in a downward direction.
    Type: Application
    Filed: August 8, 2017
    Publication date: February 14, 2019
    Applicant: KUHN KRAUSE, INC.
    Inventors: David H. WEAST, Rodney L. Hagman
  • Patent number: 6880644
    Abstract: A tillage tool includes a relatively narrow shank that slices through the soil while a ripper point at its lower end fractures and lifts the subsoil. Minimum surface disturbance adjacent the opposite sides of the shank is assured through the provision of a pair of independently mounted down-pressure wheels on opposite sides of the shank that engage and apply constant downward pressure against soil tending to erupt at the top surface. Each down pressure wheel is mounted to the shank assembly by its own leaf spring so that the two wheels react to ground changes independently of one another and without adversely affecting each other. A guide plate associated with each leaf spring prevents twisting of the spring as it flexes and provides stops for limiting the opposite extremes of up and down flexing of the spring.
    Type: Grant
    Filed: May 16, 2003
    Date of Patent: April 19, 2005
    Assignee: Krause Plow Corporation, Inc.
    Inventors: David H. Weast, Rodney L. Hagman
  • Publication number: 20040226727
    Abstract: A tillage tool includes a relatively narrow shank that slices through the soil while a ripper point at its lower end fractures and lifts the subsoil. Minimum surface disturbance adjacent the opposite sides of the shank is assured through the provision of a pair of independently mounted down-pressure wheels on opposite sides of the shank that engage and apply constant downward pressure against soil tending to erupt at the top surface. Each down pressure wheel is mounted to the shank assembly by its own leaf spring so that the two wheels react to ground changes independently of one another and without adversely affecting each other. A guide plate associated with each leaf spring prevents twisting of the spring as it flexes and provides stops for limiting the opposite extremes of up and down flexing of the spring.
    Type: Application
    Filed: May 16, 2003
    Publication date: November 18, 2004
    Inventors: David H. Weast, Rodney L. Hagman
  • Patent number: 5450908
    Abstract: A tillage implement has its residue incorporating gangs of discs hydraulically adjustable on-the-go to vary the extent of residue incorporation. Cylinders connected with the gangs are of matching volumetric capacities and are connected in a series hydraulic arrangement so that all of the cylinders operate in unison and in equal amounts. Each cylinder has a rod that extends through the entire length of the cylinder and projects outwardly from opposite ends thereof. Each cylinder is also provided with a relief spring coiled about its exterior and trapped between a lower shoulder on the cylinder and an upper slip collar that is trunnion-mounted to the attaching bracket of the implement frame, thus permitting the cylinder to slip upwardly through the collar under the resistance of the relief spring when an obstacle is encountered by the incorporating discs.
    Type: Grant
    Filed: April 14, 1993
    Date of Patent: September 19, 1995
    Assignee: Krause Plow Corporation, Inc.
    Inventors: Rodney L. Hagman, Bill J. Pfenninger
  • Patent number: D908742
    Type: Grant
    Filed: April 24, 2019
    Date of Patent: January 26, 2021
    Assignee: KUHN KRAUSE, INC.
    Inventors: Tom W. Ankenman, Rodney L. Hagman