中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

15 records (took 0.025 seconds)

    Method and apparatus for sealing the top of a furnace for drawing optical fibre from a preform
    3.
    发明专利
    Method and apparatus for sealing the top of a furnace for drawing optical fibre from a preform 未知

    公开(公告)号：AU2990500A

    公开(公告)日：2000-09-14

    申请号：AU2990500

    申请日：2000-02-10

    Applicant: CORNING INC

    Inventor： BALL STEVEN C ,  BARNARD JOHN M ,  SNIPES JAMES A

    IPC: C03B37/027 ,  C03B37/029

    Abstract: An apparatus and method for sealing the top of an optical waveguide draw furnace is disclosed. The apparatus includes an assembly constructed and arranged to removably cover the top of the draw furnace while mating with the downfeed handle. The apparatus includes an elongated sleeve having a base and a sealing mechanism positioned on the sleeve at a location remote from the base. The sleeve defines a chamber for receiving the downfeed handle, and the sealing mechanism is arranged with respect to the sleeve to mate with the downfeed handle received in the chamber. In one aspect of the invention, the apparatus further includes an inert gas purge for providing an inert atmosphere within the chamber. A method of sealing the top of an optical waveguide draw furnace is also disclosed.

    Method and apparatus for sealing the bottom of a furnace for drawing optical fibre from a preform
    7.
    发明专利
    Method and apparatus for sealing the bottom of a furnace for drawing optical fibre from a preform 未知

    公开(公告)号：AU3359500A

    公开(公告)日：2000-09-14

    申请号：AU3359500

    申请日：2000-02-10

    Applicant: CORNING INC

    Inventor： BALL STEVEN C ,  BARNARD JOHN M ,  SNIPES JAMES A

    IPC: C03B37/025 ,  C03B37/029

    Abstract: An apparatus and method for sealing the bottom of an optical waveguide draw furnace is disclosed. The apparatus includes an assembly constructed and arranged to mate with the bottom of the draw furnace to form a seal, and a leak detection system communicating with the assembly to signal the forming of a proper or an improper seal. The covering plate of the assembly is selectively seated on the sealing plate of the draw furnace to form the seal, and an inert gas is delivered between the covering plate and the bottom of the draw furnace. The flow of the inert gas is detected to determine if the seal has been properly formed. An assembly including a covering plate having at least two radially spaced gaskets circumferentially positioned on the top surface of the covering plate for engagement with the sealing plate at the bottom of the draw furnace, and a method for sealing the bottom of a draw furnace are also disclosed.

Patent Agency Ranking