Patents by Inventor Yevgeny Eugene Zaltsman

Yevgeny Eugene Zaltsman 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).

  • Pipe liner and method of making and installing the same
    Patent number: 11384889
    Abstract: An eversion liner for lining a pipe includes an impermeable outer portion, inner and outer strength portions inside the impermeable outer portion, and a middle portion including at least one felt layer radially between the inner and outer strength portions. At least one of the inner and outer strength portions is formed from a unitary sheet of strength material that includes parallel chopped strands of fiber. The longitudinal edge margins of the sheet of strength material are positioned in overlapping engagement and joined together by joining structure. The parallel chopped fibers can be oriented transverse to the length of the liner. The joining structure can prevent reduction in a width of the overlapped edge margins as the liner expands during eversion.
    Type: Grant
    Filed: July 1, 2020
    Date of Patent: July 12, 2022
    Assignee: INA Acquisition Corp.
    Inventors: Charles Free, Abu Abraham, Yevgeny Eugene Zaltsman
  • PIPE LINER AND METHOD OF MAKING AND INSTALLING THE SAME
    Publication number: 20200332940
    Abstract: An eversion liner for lining a pipe includes an impermeable outer portion, inner and outer strength portions inside the impermeable outer portion, and a middle portion including at least one felt layer radially between the inner and outer strength portions. At least one of the inner and outer strength portions is formed from a unitary sheet of strength material that includes parallel chopped strands of fiber. The longitudinal edge margins of the sheet of strength material are positioned in overlapping engagement and joined together by joining structure. The parallel chopped fibers can be oriented transverse to the length of the liner. The joining structure can prevent reduction in a width of the overlapped edge margins as the liner expands during eversion.
    Type: Application
    Filed: July 1, 2020
    Publication date: October 22, 2020
    Applicant: INA ACQUISITION CORP.
    Inventors: Charles Free, Abu Abraham, Yevgeny Eugene Zaltsman
  • Pipe liner and method of making same
    Patent number: 10704728
    Abstract: An eversion liner for lining a pipe includes an impermeable outer portion, inner and outer strength portions inside the impermeable outer portion, and a middle portion including at least one felt layer radially between the inner and outer strength portions. At least one of the inner and outer strength portions is formed from a unitary sheet of strength material that includes parallel chopped strands of fiber. The longitudinal edge margins of the sheet of strength material are positioned in overlapping engagement and joined together by joining structure. The parallel chopped fibers can be oriented transverse to the length of the liner. The joining structure can prevent reduction in a width of the overlapped edge margins as the liner expands during eversion.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: July 7, 2020
    Assignee: INA Acquisition Corp.
    Inventors: Charles Free, Abu Abraham, Yevgeny Eugene Zaltsman
  • PIPE LINER AND METHOD OF MAKING AND INSTALLING THE SAME
    Publication number: 20190293223
    Abstract: An eversion liner for lining a pipe includes an impermeable outer portion, inner and outer strength portions inside the impermeable outer portion, and a middle portion including at least one felt layer radially between the inner and outer strength portions. At least one of the inner and outer strength portions is formed from a unitary sheet of strength material that includes parallel chopped strands of fiber. The longitudinal edge margins of the sheet of strength material are positioned in overlapping engagement and joined together by joining structure. The parallel chopped fibers can be oriented transverse to the length of the liner. The joining structure can prevent reduction in a width of the overlapped edge margins as the liner expands during eversion.
    Type: Application
    Filed: March 20, 2018
    Publication date: September 26, 2019
    Applicant: INA ACQUISITION CORP.
    Inventors: Charles Free, Abu Abraham, Yevgeny Eugene Zaltsman