Patents by Inventor Petre DOROBANTU

Petre DOROBANTU 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).

  • Cementing head apparatus
    Patent number: 11466534
    Abstract: A cementing head apparatus includes a plug-launching tool and a tubular plug receiver cage disposed within a bore of the launching tool, plus one or more paddles selectively movable within a bore of the receiver cage between a hold position in which the paddles at least partially occlude the receiver cage bore to hold a plug within a retained plug interval of the receiver cage bore, and a launch position in which the paddles are substantially retracted from the receiver cage bore to allow passage of the plug through the receiver cage bore and onward into a casing string to which the launching tool is mounted.
    Type: Grant
    Filed: May 8, 2020
    Date of Patent: October 11, 2022
    Assignee: Noetic Technologies Inc.
    Inventors: Maurice William Slack, Petre Dorobantu
  • CEMENTING HEAD APPARATUS
    Publication number: 20220003064
    Abstract: A cementing head apparatus includes a plug-launching tool and a tubular plug receiver cage disposed within a bore of the launching tool, plus one or more paddles selectively movable within a bore of the receiver cage between a hold position in which the paddles at least partially occlude the receiver cage bore to hold a plug within a retained plug interval of the receiver cage bore, and a launch position in which the paddles are substantially retracted from the receiver cage bore to allow passage of the plug through the receiver cage bore and onward into a casing string to which the launching tool is mounted.
    Type: Application
    Filed: May 8, 2020
    Publication date: January 6, 2022
    Inventors: Maurice William SLACK, Petre DOROBANTU