Patents by Inventor C. David Anderson

C. David Anderson 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: 9145659
    Abstract: A ride control system uses speed, pressure, hand throttle, foot throttle and seat position information associated with a tractor-loader-backhoe to determine when to engage and disengage the ride control system for the tractor-loader-backhoe. Once the ride control system is engaged, the ride control system can be disengaged in response to either an operator command or a measured speed of the tractor-loader-backhoe being below a predetermined speed.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: September 29, 2015
    Assignee: CNH Industrial America LLC
    Inventors: Robert Walz, C. David Anderson, Matthew J. Hennemann, David J. Sanning, Nicholas S. Chibucos
  • Publication number: 20140379229
    Abstract: A ride control system uses speed, pressure, hand throttle, foot throttle and seat position information associated with a tractor-loader-backhoe to determine when to engage and disengage the ride control system for the tractor-loader-backhoe. Once the ride control system is engaged, the ride control system can be disengaged in response to either an operator command or a measured speed of the tractor-loader-backhoe being below a predetermined speed.
    Type: Application
    Filed: January 18, 2013
    Publication date: December 25, 2014
    Applicant: CNH Industrial America LLC
    Inventors: Robert Walz, C. David Anderson, Matthew J. Hennemann, David J. Sanning, Nicholas S. Chibucos
  • Patent number: 8621860
    Abstract: A work machine includes a fluid circuit for use with an attachment configured to operate using one of a uni-directional flow and a bi-directional flow through the attachment. An operator-enabled mode selection switch operably connects to a controller. An electrical circuit includes the operator-enabled mode selection switch and a second operator-enabled switch. A first control valve is in fluid communication with the attachment. In response to the mode selection switch being operator-actuated to a bi-directional mode setting, the first control valve via the controller is actuatable to one of the bi-directional positions, electrical power being unavailable to the second operator-enabled switch of the electrical circuit.
    Type: Grant
    Filed: October 22, 2010
    Date of Patent: January 7, 2014
    Assignee: CNH America LLC
    Inventors: Matthew J. Hennemann, C. David Anderson, Garrett L. Anderson
  • Patent number: 8353157
    Abstract: An open center hydraulic system that includes a variable displacement pump having an inlet, an outlet and a sensing port, the pump configured to provide reduced fluid flow in response to a predetermined fluid pressure differential between the outlet and the sensing port. A first fluid circuit and a second fluid circuit each serve as signal lines with the pump sensing port. During operation of the second fluid circuit, reduced fluid flow from the pump outlet is achieved as a result of the sum of induced fluid pressure reductions of respective controlled pressure reduction devices approaching the predetermined pump fluid pressure differential.
    Type: Grant
    Filed: August 6, 2009
    Date of Patent: January 15, 2013
    Assignee: CNH America LLC
    Inventors: Richard J. Lech, Garrett Anderson, Matthew J. Hennemann, C. David Anderson
  • Publication number: 20120097277
    Abstract: A work machine includes a fluid circuit for use with an attachment configured to operate using one of a uni-directional flow and a bi-directional flow through the attachment. An operator-enabled mode selection switch operably connects to a controller. An electrical circuit includes the operator-enabled mode selection switch and a second operator-enabled switch. A first control valve is in fluid communication with the attachment. In response to the mode selection switch being operator-actuated to a bi-directional mode setting, the first control valve via the controller is actuatable to one of the bi-directional positions, electrical power being unavailable to the second operator-enabled switch of the electrical circuit.
    Type: Application
    Filed: October 22, 2010
    Publication date: April 26, 2012
    Inventors: Matthew J. Hennemann, C. David Anderson, Garrett L. Anderson
  • Publication number: 20110030363
    Abstract: An open center hydraulic system that includes a variable displacement pump having an inlet, an outlet and a sensing port, the pump configured to provide reduced fluid flow in response to a predetermined fluid pressure differential between the outlet and the sensing port. A first fluid circuit and a second fluid circuit each serve as signal lines with the pump sensing port. During operation of the second fluid circuit, reduced fluid flow from the pump outlet is achieved as a result of the sum of induced fluid pressure reductions of respective controlled pressure reduction devices approaching the predetermined pump fluid pressure differential.
    Type: Application
    Filed: August 6, 2009
    Publication date: February 10, 2011
    Inventors: Richard J. LECH, Garrett Anderson, Matthew J. Hennemann, C. David Anderson