Title:
【発明の名称】炉内へのカメラの挿入
Document Type and Number:
Japanese Patent JP2003526005
Kind Code:
A
Abstract:
A monitoring system for a furnace, such as one in which ceramic welding is practiced, where the temperature often exceeds 2000° F., allows substantially distortion-free, real time, monitoring. In order to monitor the furnace, a fluid cooled lance designed to be held by an operator outside the furnace has a camera (e.g. microcamera, endoscope or boroscope) mounted at the free end of the lance. An electrical connection is provided between the camera and a portable control unit mounted exteriorly of the furnace. A stationary video monitor and recorder may be mounted in the control unit, and a portable real time video monitor is mounted on the operator's headgear so that it may be seen by the operator when manipulating the lance. The lance is cooled by a water jacket having an inlet and outlet at the end of the lance exterior of the furnace, and the water jacket substantially surrounds the camera. The camera is mounted in a waterproof metal casing and the cord is covered by an aramid reinforced covering adjacent the camera. A second, sapphire, lens protects the camera lens from radiant heat, and air under pressure also helps cool the camera.
Inventors:
Mirror, dale, are, ii
Chambers, Robert, Dee
Chambers, Robert, Dee
Application Number:
JP2000560404A
Publication Date:
September 02, 2003
Filing Date:
July 14, 1999
Export Citation:
Assignee:
Fosbell, International, Limited
International Classes:
C21B7/24; F27D21/02; C21B7/00; F27D9/00; (IPC1-7): C21B7/00; C21B7/24; F27D21/02
Attorney, Agent or Firm:
Masami Sakai