Patents by Inventor Robbie Roberts

Robbie Roberts 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).

  • CRANK IMPACT AND WEAR PROTECTION ARTICLE
    Publication number: 20230014123
    Abstract: A crank impact and wear protection article is disclosed. The crank arm includes a crank body and an impact and wear protection article coupled with the crank body.
    Type: Application
    Filed: May 24, 2022
    Publication date: January 19, 2023
    Applicant: Fox Factory, Inc.
    Inventors: Fraser ANDREW, Evan Michael CHOLTCO-DEVLIN, Douglas CHALMERS, Robbie ROBERTS, Marco SOTA
  • Pressure balancing proppant addition method and apparatus
    Patent number: 9664025
    Abstract: A method and apparatus is disclosed for controlling the flow of proppant into frac fluid during a frac. A first pressure source pressurizes fluid within a proppant addition unit. Process piping receives proppant through a proppant supply passage for supply to a frac pressure pump. A second pressure source pressurizes fluid within the process piping. A first sensor senses pressure on a first side of the proppant supply passage and outputs a first signal. A second sensor senses pressure on the process piping on a second side of the proppant supply passage and outputs a second signal. A processor receives the first signal and the second signal, and outputs a control signal to at least one of the first pressure source and the second pressure source in response to the first signal and the second signal to control proppant flow into the process piping.
    Type: Grant
    Filed: September 16, 2011
    Date of Patent: May 30, 2017
    Assignee: Step Energy Services LLC
    Inventor: Robbie Roberts
  • PRESSURE BALANCING PROPPANT ADDITION METHOD AND APPARATUS
    Publication number: 20130168086
    Abstract: A method and apparatus is disclosed for controlling the flow of proppant into frac fluid during a frac. A first pressure source pressurizes fluid within a proppant addition unit. Process piping receives proppant through a proppant supply passage for supply to a frac pressure pump. A second pressure source pressurizes fluid within the process piping. A first sensor senses pressure on a first side of the proppant supply passage and outputs a first signal. A second sensor senses pressure on the process piping on a second side of the proppant supply passage and outputs a second signal. A processor receives the first signal and the second signal, and outputs a control signal to at least one of the first pressure source and the second pressure source in response to the first signal and the second signal to control proppant flow into the process piping.
    Type: Application
    Filed: September 16, 2011
    Publication date: July 4, 2013
    Applicant: GASFRAC ENERGY SERVICES INC.
    Inventor: Robbie Roberts
  • Telephone set
    Patent number: D609212
    Type: Grant
    Filed: November 23, 2007
    Date of Patent: February 2, 2010
    Assignee: Nortel Networks Limited
    Inventors: Robert Turnbull, Alexander Feldman, David Render, Robbie Roberts
  • Key extension module for telephone
    Patent number: D634295
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: March 15, 2011
    Assignee: Avaya Inc.
    Inventors: Robert Turnbull, Alexander Feldman, David Render, Robbie Roberts