Patents by Inventor Nicholas B. Johnson

Nicholas B. Johnson 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: 10633806
    Abstract: A rotor position indicator system may include a side plate and a first rotor width indicator plate. The side plate may be positioned on a side of an earth moving milling machine, and the first rotor width indicator plate may be inset on an external face of the side plate. The first rotor width indicator plate may include a plurality of markings, with each marking corresponding to a rotor position.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: April 28, 2020
    Assignee: Caterpillar Paving Products Inc.
    Inventors: Dustin W. Sondreal, Roger A. Hedlund, Jason W. Muir, Ryan Hutar, Nicholas B. Johnson
  • Publication number: 20190368137
    Abstract: A rotor position indicator system may include a side plate and a first rotor width indicator plate. The side plate may be positioned on a side of an earth moving milling machine, and the first rotor width indicator plate may be inset on an external face of the side plate. The first rotor width indicator plate may include a plurality of markings, with each marking corresponding to a rotor position.
    Type: Application
    Filed: June 1, 2018
    Publication date: December 5, 2019
    Applicant: Caterpillar Paving Products Inc.
    Inventors: Dustin W. Sondreal, Roger A. Hedlund, Jason W. Muir, Ryan Hutar, Nicholas B. Johnson
  • Publication number: 20150175226
    Abstract: A hydraulic tensioning system for a tracked undercarriage is configured to position an idler wheel, supported by a frame assembly, relative to a drive sprocket. The hydraulic tensioning system includes at least one fluid actuator unit with a body that defines a recoil chamber, a tension chamber, and a wall in between the two chambers. A piston assembly is positioned between the body and idler wheel. A ram assembly is positioned between the body and frame assembly. A recoil circuit is in fluid communication with the recoil chamber and a tank. A fluid in the recoil chamber is relieved through a relief valve when the idler wheel is displaced. Fluid is introduced to the recoil chamber, urging the idler wheel away from the frame assembly, via the piston assembly. A tensioning fluid within the tension chamber selectively urges the idler wheel away from the frame assembly, via the ram assembly.
    Type: Application
    Filed: March 4, 2015
    Publication date: June 25, 2015
    Applicant: CATERPILLAR PAVING PRODUCTS INC.
    Inventors: NICHOLAS B. JOHNSON, NICHOLAS J. ARGENZIANO, NATHAN L. MASHEK, JASON W. MUIR
  • Patent number: 6211386
    Abstract: The present invention is a process for the preparation of a compound of the formula: where R3, R4 and n are defined in the specification which comprises hydrogenating a compound of the formula: the E-geometrical isomer thereof or a mixture of the Z- and E-isomers in the presence of catalyst containing Rh, a chiral ligand with at least one phosphorous atom where the hydrogenation is conducted in the presence of a base.
    Type: Grant
    Filed: March 14, 2000
    Date of Patent: April 3, 2001
    Assignee: Pharmacia & Upjohn Company
    Inventors: Mark J. Burk, Nicholas B. Johnson, Bradley D. Hewitt