Patents by Inventor Frank Breier

Frank Breier 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).

  • Active damping ride control system for attenuating oscillations in a hydraulic actuator of a machine
    Patent number: 10323384
    Abstract: A ride control system includes four independent metering valves (IMVs) that are independently and selectively controlled by a controller for attenuating oscillations in a hydraulic actuator of a machine. The controller is configured to open at least one of the IMVs for supplying pressurized fluid from a tank to a head end chamber of the hydraulic actuator when a pressure of the head end chamber drops to a value less than an initially registered pressure. Additionally, when the displacement of the piston block is positive and the pressure in the head end chamber falls to a value less than the pressure of fluid in a rod end chamber of the hydraulic actuator, the controller may also open another one of the IMVs by which fluid from the rod end chamber could be supplied to the head end chamber for supplementing pump flow and attenuating oscillations in the hydraulic actuator.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: June 18, 2019
    Assignee: Caterpillar Inc.
    Inventors: Vickram Murugesan, Hongliu Du, Lonnie James Devier, Frank Breier, Mandi Henderson, Matthew James Beschorner
  • ACTIVE DAMPING RIDE CONTROL SYSTEM FOR ATTENUATING OSCILLATIONS IN A HYDRAULIC ACTAUTOR OF A MACHINE
    Publication number: 20180163373
    Abstract: A ride control system includes four independent metering valves (IMVs) that are independently and selectively controlled by a controller for attenuating oscillations in a hydraulic actuator of a machine. The controller is configured to open at least one of the IMVs for supplying pressurized fluid from a tank to a head end chamber of the hydraulic actuator when a pressure of the head end chamber drops to a value less than an initially registered pressure. Additionally, when the displacement of the piston block is positive and the pressure in the head end chamber falls to a value less than the pressure of fluid in a rod end chamber of the hydraulic actuator, the controller may also open another one of the IMVs by which fluid from the rod end chamber could be supplied to the head end chamber for supplementing pump flow and attenuating oscillations in the hydraulic actuator.
    Type: Application
    Filed: December 8, 2016
    Publication date: June 14, 2018
    Applicant: Caterpillar Inc.
    Inventors: Vickram Murugesan, Hongliu Du, Lonnie James Devier, Frank Breier, Mandi Henderson, Matthew James Beschorner