Patents by Inventor Eugenie B. Danilov

Eugenie B. Danilov 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).

  • Method for making optical fiber preform using simultaneous inside and outside deposition
    Patent number: 6769275
    Abstract: A method and apparatus for making optical fiber preforms using simultaneous plasma deposition on the inside and outside surface of a starting tube. A starting tubular member is rotated, CFOT chemicals are selectively injected into the plasma torch, and CFIT chemicals are selectively injected to flow through the hollow of the tube. The plasma torch is traversed along the tubular member to simultaneously deposit soot on the inside and outside surface. The soot on one or both surfaces may be consolidated into a silica layer as it is deposited. The plasma torch is traversed again to deposit additional soot, and/or consolidate previously deposited soot, on one or both surfaces. The process is repeated until a predetermined amount of silica is formed on the tubular member. The tubular member is then collapsed. Optionally, additional plasma deposition is performed during or after the collapsing.
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: August 3, 2004
    Assignee: FiberCore, Inc.
    Inventors: Mikhail I. Guskov, Eugenie B. Danilov, Wolfgang Hammerle, Mohd A. Aslami, Dau Wu
  • Method for making optical fiber preform using simultaneous inside and outside deposition
    Publication number: 20030172681
    Abstract: A method and apparatus for making optical fiber preforms using simultaneous plasma deposition on the inside and outside surface of a starting tube. A starting tubular member is rotated, CFOT chemicals are selectively injected into the plasma torch, and CFIT chemicals are selectively injected to flow through the hollow of the tube. The plasma torch is traversed along the tubular member to simultaneously deposit soot on the inside and outside surface. The soot on one or both surfaces may be consolidated into a silica layer as it is deposited. The plasma torch is traversed again to deposit additional soot, and/or consolidate previously deposited soot, on one or both surfaces. The process is repeated until a predetermined amount of silica is formed on the tubular member. The tubular member is then collapsed. Optionally, additional plasma deposition is performed during or after the collapsing.
    Type: Application
    Filed: March 15, 2002
    Publication date: September 18, 2003
    Inventors: Mikhail I. Guskov, Eugenie B. Danilov, Wolfgang Hammerle, Mohd A. Aslami, Dau Wu