Patents by Inventor Joseph E. Roth

Joseph E. Roth 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).

  • Publication number: 20150134163
    Abstract: An electric drive control system for a machine is provided. The electric drive control system includes a sensor and a drivetrain control module operatively coupled to the sensor. The sensor is configured to determine one or more operational parameters associated with the machine. The drivetrain control module is further operatively coupled to a power source controller associated with a power source and a generator controller associated with a generator. The drivetrain control module is configured to determine a desired operating mode of the machine and selectively regulate one or parameters associated with the power source based on a predefined dataset corresponding to the desired operating mode of the machine. The drivetrain control module is further configured to selectively adjust an amount of power produced by the generator based on the predefined dataset corresponding to the desired operating mode of the machine.
    Type: Application
    Filed: November 13, 2013
    Publication date: May 14, 2015
    Applicant: Caterpillar Inc.
    Inventors: Zachary R. Carter, Srikar Thaduvayi, Karl Schneider, Michael A. McKeever, Joseph E. Roth
  • Patent number: 8967103
    Abstract: A variable valve timing arrangement for an engine system is disclosed. The variable valve timing arrangement includes a cam follower configured to follow a cam lobe. A pushrod is operably connected with the cam follower and a pushrod rotation mechanism is configured to selectively rotate the pushrod. Further, a cam follower adjustment mechanism is configured to reposition the cam follower based on the rotation of the pushrod.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: March 3, 2015
    Assignee: Caterpillar Inc.
    Inventors: Derek A. Tanis, Joseph E. Roth, Aaron G. Foege
  • Publication number: 20140245979
    Abstract: A variable valve timing arrangement for an engine system is disclosed. The variable valve timing arrangement includes a cam follower configured to follow a cam lobe. A pushrod is operably connected with the cam follower and a pushrod rotation mechanism is configured to selectively rotate the pushrod. Further, a cam follower adjustment mechanism is configured to reposition the cam follower based on the rotation of the pushrod.
    Type: Application
    Filed: March 4, 2013
    Publication date: September 4, 2014
    Applicant: Caterpillar Inc.
    Inventors: Derek A. Tanis, Joseph E. Roth, Aaron G. Foege
  • Patent number: D357337
    Type: Grant
    Filed: March 15, 1994
    Date of Patent: April 18, 1995
    Inventor: Joseph E. Roth
  • Patent number: D357564
    Type: Grant
    Filed: March 15, 1994
    Date of Patent: April 25, 1995
    Inventor: Joseph E. Roth