Brazing wand with fiber optic temperature sensor
Patent 4574172 Issued on March 4, 1986. Estimated Expiration Date: 
April 19, 2004. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
April 19, 2004. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesInventorsAssigneeApplicationNo. 06/602088 filed on 04/19/1984US Classes:219/632, With cooling arrangement219/609, Layering (e.g., coating, lining, etc.)219/644, Interior surface219/667, Temperature219/674, Cylindrical coil228/119, Repairing, restoring, or renewing product for reuse356/45, Plural color responsive374/131With radiation conducting elementExaminersPrimary: Leung, Philip H.Attorney, Agent or FirmInternational ClassesB23K 3/04 (20060101)B23K 3/053 (20060101) H05B 6/38 (20060101) H05B 6/36 (20060101) AbstractThe brazing wand comprises a hollow helically wound electrically conductive tubular member for conducting an electrical current and for conducting a coolant therethrough. The electrical current is used to heat a member to be brazed while the coolant is used to control the temperature of the brazing wand. The brazing wand also comprises an optical sensing device for determining and controlling the brazing temperature.Other References
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