Patent ID: 7716953

Claim:
A method for fiberizing a molten material comprising flowing molten glass into a bushing comprising an orifice plate or a tip plate containing a plurality of orifices therein to form fibers and pulling the fibers during fiberization against a motor driven pad wheel at a speed of at least 1000 ft./min. to form a strand of fibers, the improvement comprising that the motor is a servo motor driven at a shaft speed of at least about 2000 RPM during fiberization by a voltage of less than about 50 volts, the RPM of the shaft of the servo motor being deaccelerated at a desired rate by a servo motor controller upon a breakout of the fibers coming from the bushing and then accelerated at a desired rate to at least about 2000 RPM by the servo motor controller when the bushing is once again in a fiberization mode.