Patents by Inventor Craig Hedstrom

Craig 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: 12259035
    Abstract: A belt drive for a work machine is disclosed. The belt drive has a drive belt that is wound around an input pulley and an out put pulley. The input pulley is rotated by a motor, and when rotated, transfers rotational motion to the output pulley by the drive belt. A controller is in communication with an input speed sensor that measures the input pulley and an output speed sensor that measures the output pulley. The controller calculates an input speed from the measurement of the input pulley, and an output speed from the measurement of the output pulley. The controller also sends a damaged belt signal to an operator control of the work machine when the output speed is lower by a predetermined threshold than the input speed.
    Type: Grant
    Filed: April 14, 2022
    Date of Patent: March 25, 2025
    Assignee: Caterpillar Paving Products Inc.
    Inventor: Craig Hedstrom
  • Publication number: 20230332679
    Abstract: A belt drive for a work machine is disclosed. The belt drive has a drive belt that is wound around an input pulley and an out put pulley. The input pulley is rotated by a motor, and when rotated, transfers rotational motion to the output pulley by the drive belt. A controller is in communication with an input speed sensor that measures the input pulley and an output speed sensor that measures the output pulley. The controller calculates an input speed from the measurement of the input pulley, and an output speed from the measurement of the output pulley. The controller also sends a damaged belt signal to an operator control of the work machine when the output speed is lower by a predetermined threshold than the input speed.
    Type: Application
    Filed: April 14, 2022
    Publication date: October 19, 2023
    Applicant: Caterpillar Paving Products Inc.
    Inventor: Craig Hedstrom
  • Patent number: 10364536
    Abstract: A rotor assembly for a cold planer is disclosed. The rotor assembly may include a rotor chamber that is configured to house a milling drum, and the milling drum may be configured to rotate within the rotor chamber. The rotor assembly may further include a plate movably coupled to the rotor chamber and an upper pulley wheel rotatably mounted to the plate. Furthermore, a lower pulley wheel may be rotatably mounted to the rotor chamber and the lower pulley wheel may be operably coupled to the milling drum such that the lower pulley wheel and the milling drum synchronously rotate. The rotor assembly may further include an actuating mechanism operably coupled to the plate, and the actuating mechanism may be configured to move the plate and the upper pulley wheel between an operation position and a transport position.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: July 30, 2019
    Assignee: Caterpillar Paving Products Inc.
    Inventor: Craig Hedstrom
  • Publication number: 20190010669
    Abstract: A rotor assembly for a cold planer is disclosed. The rotor assembly may include a rotor chamber that is configured to house a milling drum, and the milling drum may be configured to rotate within the rotor chamber. The rotor assembly may further include a plate movably coupled to the rotor chamber and an upper pulley wheel rotatably mounted to the plate. Furthermore, a lower pulley wheel may be rotatably mounted to the rotor chamber and the lower pulley wheel may be operably coupled to the milling drum such that the lower pulley wheel and the milling drum synchronously rotate. The rotor assembly may further include an actuating mechanism operably coupled to the plate, and the actuating mechanism may be configured to move the plate and the upper pulley wheel between an operation position and a transport position.
    Type: Application
    Filed: September 14, 2018
    Publication date: January 10, 2019
    Applicant: Caterpillar Paving Products Inc.
    Inventor: Craig Hedstrom
  • Patent number: 10106937
    Abstract: A rotor assembly for a cold planer is disclosed. The rotor assembly may include a rotor chamber that is configured to house a milling drum, and the milling drum may be configured to rotate within the rotor chamber. The rotor assembly may further include a plate movably coupled to the rotor chamber and an upper pulley wheel rotatably mounted to the plate. Furthermore, a lower pulley wheel may be rotatably mounted to the rotor chamber and the lower pulley wheel may be operably coupled to the milling drum such that the lower pulley wheel and the milling drum synchronously rotate. The rotor assembly may further include an actuating mechanism operably coupled to the plate, and the actuating mechanism may be configured to move the plate and the upper pulley wheel between an operation position and a transport position.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: October 23, 2018
    Assignee: Caterpillar Paving Products Inc.
    Inventor: Craig Hedstrom
  • Publication number: 20180058018
    Abstract: A rotor assembly for a cold planer is disclosed. The rotor assembly may include a rotor chamber that is configured to house a milling drum, and the milling drum may be configured to rotate within the rotor chamber. The rotor assembly may further include a plate movably coupled to the rotor chamber and an upper pulley wheel rotatably mounted to the plate. Furthermore, a lower pulley wheel may be rotatably mounted to the rotor chamber and the lower pulley wheel may be operably coupled to the milling drum such that the lower pulley wheel and the milling drum synchronously rotate. The rotor assembly may further include an actuating mechanism operably coupled to the plate, and the actuating mechanism may be configured to move the plate and the upper pulley wheel between an operation position and a transport position.
    Type: Application
    Filed: September 1, 2016
    Publication date: March 1, 2018
    Applicant: Caterpillar Paving Products Inc.
    Inventor: Craig Hedstrom