Patent ID: 7421194

Claim:
A quartz heater tube module comprising: a plurality of quartz heater tube propers and each of said heated tube propers having an outer surface, and an electric heater film coated on said outer surface, and said electric heater film having two ends and a pair of electrodes with one of said electrodes on each of the two ends thereof for heating said heater tube proper by applying a voltage between said electrodes; a first and a second covering on said outer surface of said heater tube proper; a first strip type electrode formed on said first covering and projecting outwardly from one end thereof, a metal spring leaf connected with one of said two electrodes of said tube proper to thereby connect said first strip type electrode with said electrode of said heater tube proper electrically; a second strip type electrode formed on said second covering and projecting outwardly from one end thereof, and a metal spring leaf connected with the other electrode of said heater tube proper to thereby connect said second strip type electrode with the other electrode of said heater tube proper electrically; and an adaptive sleeve disposed on each end of said quartz heater tube proper for connecting each of said heater tube propers to an adjacent heater tube proper; whereby said quartz heater tube proper is protected from breaking by an external impact force by said first and second covering, and a plurality of tube propers can be connected to form said quartz heater tube module using said adaptive sleeves to bridge the adjacent heater tube propers.