US PATENT SUBCLASS 65 / 461
.~.~.~.~.~ Having at least two concentric burners or blowers

Current as of: June, 1999
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65 /   HD   GLASS MANUFACTURING

376  DF  PROCESSES OF MANUFACTURING FIBERS, FILAMENTS, OR PREFORMS {18}
454  DF  .~ Formation of fiber or preform utilizing fluid blast (e.g., from molten glass, etc.) {6}
455  DF  .~.~ During slinging or rotary-centrifugal fiber distribution {4}
459  DF  .~.~.~ Centrifuge with fiberizing holes {1}
460  DF  .~.~.~.~ Adjacent combustion chamber, burner, or blower utilized {1}
461.~.~.~.~.~ Having at least two concentric burners or blowers

DEFINITION

Classification: 65/461

Having at least two concentric burners or blowers:

(under subclass 460) Processes wherein more than one burner or blower sharing a common center is used.