Patents by Inventor James A. Hargraves

James A. Hargraves 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: 10746228
    Abstract: A temperature-robust polymer shroud for a roller bearing seal includes a shroud body and an inner diameter leg defining respective portions of a single continuous part. The shroud body encircles a rotation axis of the polymer shroud and extends predominantly in directions orthogonal to the rotation axis from an inner diameter to an outer diameter. The inner diameter leg connects to the shroud body at the inner diameter, encircles the rotation axis, and is oriented at an oblique angle to the rotation axis to extend both (a) radially inward from the inner diameter and (b) axially away from the inner diameter along a first direction parallel to the rotation axis. A roller bearing seal includes a seal case, an elastomer lip, and the temperature-robust polymer shroud.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: August 18, 2020
    Assignee: Amsted Rail Company, Inc.
    Inventors: James A. Hargraves, Michael A. Mason
  • Patent number: 10371210
    Abstract: A slinger for a roller bearing seal includes (a) an inner section extending at least in a first direction parallel to a rotation axis of the slinger, encircling the rotation axis and forming a plurality of tabs configured to pressure fit the slinger onto a rotor of a roller bearing seal, (b) an outer section extending at least in the first direction at a greater distance than the inner section from the rotation axis and encircling the rotation axis, and (c) a middle section encircling the rotation axis and spanning between the inner section and the outer section, wherein the inner section, the middle section, and the outer section define respective portions of a single continuous part.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: August 6, 2019
    Assignee: Amsted Rail Company, Inc.
    Inventors: James A. Hargraves, Michael A. Mason
  • Publication number: 20190120294
    Abstract: A temperature-robust polymer shroud for a roller bearing seal includes a shroud body and an inner diameter leg defining respective portions of a single continuous part. The shroud body encircles a rotation axis of the polymer shroud and extends predominantly in directions orthogonal to the rotation axis from an inner diameter to an outer diameter. The inner diameter leg connects to the shroud body at the inner diameter, encircles the rotation axis, and is oriented at an oblique angle to the rotation axis to extend both (a) radially inward from the inner diameter and (b) axially away from the inner diameter along a first direction parallel to the rotation axis. A roller bearing seal includes a seal case, an elastomer lip, and the temperature-robust polymer shroud.
    Type: Application
    Filed: October 23, 2017
    Publication date: April 25, 2019
    Inventors: James A. Hargraves, Michael A. Mason
  • Publication number: 20180355918
    Abstract: A slinger for a roller bearing seal includes (a) an inner section extending at least in a first direction parallel to a rotation axis of the slinger, encircling the rotation axis and forming a plurality of tabs configured to pressure fit the slinger onto a rotor of a roller bearing seal, (b) an outer section extending at least in the first direction at a greater distance than the inner section from the rotation axis and encircling the rotation axis, and (c) a middle section encircling the rotation axis and spanning between the inner section and the outer section, wherein the inner section, the middle section, and the outer section define respective portions of a single continuous part.
    Type: Application
    Filed: June 13, 2017
    Publication date: December 13, 2018
    Applicant: Amsted Rail Company, Inc.
    Inventors: James A. Hargraves, Michael A. Mason