Patents by Inventor John Ferraz

John Ferraz 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).

  • Valve Stem Cover and System
    Publication number: 20150267831
    Abstract: A valve cover includes a first cover portion, second cover portion, web, and a plurality of bolt holes formed therein. The first cover portion has a first shape. The second cover portion has a second shape that is different from the first shape. The web connects the first cover portion to the second cover portion. The valve cover has a long axis disposed along the first cover portion, web and second cover portion. A first bolt hole of the plurality of bolt holes is offset from a remainder of the plurality of the bolt holes.
    Type: Application
    Filed: March 17, 2015
    Publication date: September 24, 2015
    Applicant: Caterpillar Inc.
    Inventors: Matthew Beschorner, Salik Syed, John Ferraz, Mikhail Sorokin
  • Independent metering valve with flow limiter
    Patent number: 8752371
    Abstract: An independent metering valve (IMV) assembly is disclosed that includes a metering stem including an inlet. The IMV assembly also includes a hydro-mechanical control valve in communication with a fluid source and the inlet. The control valve also including a spool with a closed end and an open end. The control valve includes a biasing member that biases the control valve or spool towards an open position thereby establishing communication between the fluid source and the inlet. The control valve also including a load signal line providing communication between an outlet of the control valve upstream of the inlet and the closed end of the spool. Wherein high pressure in the load signal line allowing the control valve to move towards a closed position thereby overcoming bias of the biasing member and reducing flow to the inlet during a high pressure condition.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: June 17, 2014
    Assignee: Caterpillar Inc.
    Inventors: John Ferraz, Aleksandar M. Egelja, Pengfei Ma, Matthew J. Beschorner
  • Independent Metering Valve with Flow Limiter
    Publication number: 20120152368
    Abstract: An independent metering valve (IMV) assembly is disclosed that includes a metering stem including an inlet. The IMV assembly also includes a hydro-mechanical control valve in communication with a fluid source and the inlet. The control valve also including a spool with a closed end and an open end. The control valve includes a biasing member that biases the control valve or spool towards an open position thereby establishing communication between the fluid source and the inlet. The control valve also including a load signal line providing communication between an outlet of the control valve upstream of the inlet and the closed end of the spool. Wherein high pressure in the load signal line allowing the control valve to move towards a closed position thereby overcoming bias of the biasing member and reducing flow to the inlet during a high pressure condition.
    Type: Application
    Filed: December 17, 2010
    Publication date: June 21, 2012
    Applicant: CATERPILLAR, INC.
    Inventors: John Ferraz, Aleksandar M. Egelja, Pengfei Ma, Matthew J. Beschorner