Patents by Inventor Kerry Todd Brock

Kerry Todd Brock 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).

  • Pump control system and method
    Patent number: 9938966
    Abstract: A zero turn mower vehicle 10 includes left and right hydrostatic transmissions 11a, 11b driving wheels 15a, 15b. The transmissions 11a, 11b each include a swashplate type axial piston hydraulic pump 17 having a swashplate 22. A system 12 and method controls each pump 17. A controller 31 receives input signals and provides output signals to electric motors 33a, 33b to control each swashplate 22. Operator interface input devices 30a, 30b provide inputs to controller 31. Angle sensors 35a, 35b provide additional inputs to controller 31. Displacement amplifiers 36a, 36b amplify displacement of each swashplate 22, and torque amplifiers 34a, 34b amplify torque of electric motors 33a, 33b.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: April 10, 2018
    Assignee: Parker-Hannifin Corporation
    Inventors: David Mark Heathcoat, Jr., Jason Lee Emmette, Roger Paul Gray, Somer Renee Malone, Kirk Ayres Lola, Kerry Todd Brock, Eli Cutshall
  • Pump Control System and Method
    Publication number: 20150147191
    Abstract: A zero turn mower vehicle 10 includes left and right hydrostatic transmissions 11a, 11b driving wheels 15a, 15b. The transmissions 11a, 11b each include a swashplate type axial piston hydraulic pump 17 having a swashplate 22. A system 12 and method controls each pump 17. A controller 31 receives input signals and provides output signals to electric motors 33a, 33b to control each swashplate 22. Operator interface input devices 30a, 30b provide inputs to controller 31. Angle sensors 35a, 35b provide additional inputs to controller 31. Displacement amplifiers 36a, 36b amplify displacement of each swashplate 22, and torque amplifiers 34a, 34b amplify torque of electric motors 33a, 33b.
    Type: Application
    Filed: January 28, 2015
    Publication date: May 28, 2015
    Applicant: Parker-Hannifin Corporation
    Inventors: David Mark Heathcoat, JR., Jason Lee Emmette, Roger Paul Gray, Somer Renee Malone, Kirk Ayres Lola, Kerry Todd Brock, Eli Cutshall