Patents by Inventor Craig Thomas Hedstrom

Craig Thomas Hedstrom 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: 11879217
    Abstract: A retention system for retaining a milling drum to a driveshaft of a milling assembly. The driveshaft is powered to drive the milling drum about an axis. The retention system includes a retention member coupled to the driveshaft between a first position and a second position. In the first position, the retention member restricts a disengagement between an engagement surface of the driveshaft and a mating surface of the milling drum, inhibiting a release of the milling drum from the driveshaft along the axis. In the second position, the retention member provides clearance for the disengagement of the engagement surface and the mating surface, facilitating the release of the milling drum from the driveshaft along the axis.
    Type: Grant
    Filed: October 6, 2021
    Date of Patent: January 23, 2024
    Assignee: Caterpillar Paving Products Inc.
    Inventors: Craig Thomas Hedstrom, Nicholas Bernard Johnson, Ryan Steve Hutar
  • Patent number: 11834798
    Abstract: A system for transferring torque from a driveshaft to a milling drum mountable on the driveshaft. The system includes a first coupler removably coupled to the driveshaft to co-rotate with the driveshaft. The first coupler defines an engagement surface. Also, the system includes a second coupler removably coupled to the milling drum. The second coupler defines a mating surface engageable with the engagement surface of the first coupler to engage the second coupler to the first coupler and transfer torque from the driveshaft to the milling drum.
    Type: Grant
    Filed: October 6, 2021
    Date of Patent: December 5, 2023
    Assignee: Caterpillar Paving Products Inc.
    Inventors: Nicholas Bernard Johnson, Craig Thomas Hedstrom, Ryan Steve Hutar
  • Publication number: 20230104194
    Abstract: A retention system for retaining a milling drum to a driveshaft of a milling assembly. The driveshaft is powered to drive the milling drum about an axis. The retention system includes a retention member coupled to the driveshaft between a first position and a second position. In the first position, the retention member restricts a disengagement between an engagement surface of the driveshaft and a mating surface of the milling drum, inhibiting a release of the milling drum from the driveshaft along the axis. In the second position, the retention member provides clearance for the disengagement of the engagement surface and the mating surface, facilitating the release of the milling drum from the driveshaft along the axis.
    Type: Application
    Filed: October 6, 2021
    Publication date: April 6, 2023
    Applicant: Caterpillar Paving Products Inc.
    Inventors: Craig Thomas Hedstrom, Nicholas Bernard Johnson, Ryan Steve Hutar
  • Publication number: 20230107382
    Abstract: A system for transferring torque from a driveshaft to a milling drum mountable on the driveshaft. The system includes a first coupler removably coupled to the driveshaft to co-rotate with the driveshaft. The first coupler defines an engagement surface. Also, the system includes a second coupler removably coupled to the milling drum. The second coupler defines a mating surface engageable with the engagement surface of the first coupler to engage the second coupler to the first coupler and transfer torque from the driveshaft to the milling drum.
    Type: Application
    Filed: October 6, 2021
    Publication date: April 6, 2023
    Applicant: Caterpillar Paving Products Inc.
    Inventors: Nicholas Bernard Johnson, Craig Thomas Hedstrom, Ryan Steve Hutar