Patents by Inventor Glen Patrick Calvert

Glen Patrick Calvert 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: 9404564
    Abstract: A transmission for a work machine may include a first variator including a first input geared to a transmission input, a first output, and a first displacement. A second variator may include a second input geared to the transmission input, a second output, and a second displacement. The first displacement may be greater than the second displacement. A first planetary gear set may be in mechanical association with the second output, selectively coupled to a ground, and in mechanical association with a first gear. A second planetary gear set may be geared to the transmission input. A third planetary gear set may include a transmission output and may be in mechanical association with the second planetary gear set. A second gear may be in mechanical association with the third planetary gear set and may be in mesh with a third gear that is in mechanical association with the first output. The second gear may be in mesh with the first gear.
    Type: Grant
    Filed: May 4, 2015
    Date of Patent: August 2, 2016
    Assignee: Caterpillar Inc.
    Inventors: Glen Patrick Calvert, Gaurav Vasudeva
  • Patent number: 8634998
    Abstract: A machine is described that includes an engine, a multi-clutch transmission and a controller. The controller is configured with computer-executable instructions for managing operation of the multi-clutch transmission to avoid autoengagement of a disengaged clutch. The computer-executable instructions configure the controller to receive sensor signals indicative of current operating status of the machine; determine, based upon the sensor signals, a configured minimum engine speed needed to avoid autoengagement of the disengaged clutch; and conditionally increase an engine speed based upon a comparison of the configured minimum engine speed and a sensed current engine speed.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: January 21, 2014
    Assignee: Caterpillar Inc.
    Inventors: Brian D. Kuras, Brian E. Lister, Glen Patrick Calvert
  • Publication number: 20130253790
    Abstract: A machine is described that includes an engine, a multi-clutch transmission and a controller. The controller is configured with computer-executable instructions for managing operation of the multi-clutch transmission to avoid autoengagement of a disengaged clutch. The computer-executable instructions configure the controller to receive sensor signals indicative of current operating status of the machine; determine, based upon the sensor signals, a configured minimum engine speed needed to avoid autoengagement of the disengaged clutch; and conditionally increase an engine speed based upon a comparison of the configured minimum engine speed and a sensed current engine speed.
    Type: Application
    Filed: March 26, 2012
    Publication date: September 26, 2013
    Applicant: CATERPILLAR INC.
    Inventors: Brian D. Kuras, Brian E. Lister, Glen Patrick Calvert