Patents by Inventor Carter Erwin

Carter Erwin 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).

  • Closure member position indicator system for use in a blowout preventer
    Patent number: 9970569
    Abstract: A system and method for detecting a position of a blowout preventer's closure members makes use of an indicator rod connected to a piston of the operator system and an electronic position sensor located entirely outside of a pressurized chamber of the operator system and arranged to detect a linear movement of the indicator rod.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: May 15, 2018
    Assignee: CAMERON INTERNATIONAL CORPORATION
    Inventors: Johnnie Kotrla, Carter Erwin
  • Safety-harness attachment
    Patent number: 9757597
    Abstract: A safety-harness attachment for attaching a safety harness thereto.
    Type: Grant
    Filed: April 29, 2010
    Date of Patent: September 12, 2017
    Assignee: Cameron International Corporation
    Inventors: Johnnie Kotrla, Gary R. Driver, Carter Erwin
  • Closure Member Position Indicator System for Use in A Blowout Preventer
    Publication number: 20170175927
    Abstract: A system and method for detecting a position of a blowout preventer's closure members makes use of an indicator rod connected to a piston of the operator system and an electronic position sensor located entirely outside of a pressurized chamber of the operator system and arranged to detect a linear movement of the indicator rod.
    Type: Application
    Filed: December 17, 2015
    Publication date: June 22, 2017
    Inventors: Johnnie Kotrla, Carter Erwin
  • SAFETY-HARNESS ATTACHMENT
    Publication number: 20120032042
    Abstract: A safety-harness attachment for attaching a safety harness thereto.
    Type: Application
    Filed: April 29, 2010
    Publication date: February 9, 2012
    Applicant: CAMERON INTERNATIONAL CORPORATION
    Inventors: Johnnie Kotrla, Gary R. Driver, Carter Erwin
  • Safety-harness attachment
    Patent number: D748345
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: January 26, 2016
    Assignee: Cameron International Corporation
    Inventors: Johnnie Kotrla, Gary R. Driver, Carter Erwin