Patents by Inventor Encho Yakovchev

Encho Yakovchev 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).

  • Apparatus and method for lined pipe welding
    Patent number: 11572967
    Abstract: A joining sleeve configured to connect internal liners of two internally lined pipe sections across a welded pipe section joint and a method of use is disclosed. The joining sleeve comprises a sleeve body having a first end and a second end, the first and second ends configured to couple with opposing ends of first and second internal liners respectively. A collar is disposed around the outer surface of the sleeve body, the collar having a first retracted condition in which it has a first outer diameter, and a second expanded condition in which it has a second outer diameter, larger than the first outer diameter.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: February 7, 2023
    Assignee: MaxTube Limited
    Inventors: Encho Yakovchev, Martin Bremner, Johannes Straub, Roderick Sweeting, Rowan Paton
  • APPARATUS AND METHOD FOR LINED PIPE WELDING
    Publication number: 20190301646
    Abstract: The invention in one aspect provides a joining sleeve configured to connect internal liners of two internally lined pipe sections across a welded pipe section joint and a method of use. The joining sleeve comprises a sleeve body having a first end and a second end, the first and second ends configured to couple with opposing ends of first and second internal liners respectively. A collar is disposed around the outer surface of the sleeve body, the collar having a first retracted condition in which it has a first outer diameter, and a second expanded condition in which it has a second outer diameter, larger than the first outer diameter.
    Type: Application
    Filed: March 28, 2019
    Publication date: October 3, 2019
    Inventors: Encho Yakovchev, Martin Bremner, Johannes Straub, Roderick Sweeting, Rowan Paton