Spinner disc and method

Details Spinner disc and method Spinner disc and method

2005-01-11

2005-01-11

Tentoni, Leo B. (Department: 1732)

Plastic and nonmetallic article shaping or treating: processes

Formation of solid particulate material directly from molten...

Utilizing centrifugal force or rotating forming zone

C065S470000, C065S521000, C264S211100, C264S211110, C264S311000, C425S008000

Reexamination Certificate

active

06841098

ABSTRACT:
A spinner disc for fiberizing a molten thermoplastic fiberizable material in a rotary fiberization process includes a base plate, an annular peripheral sidewall, and an upper annular reinforcing flange. The annular peripheral sidewall of the disc has a plurality of annular extending rows of fiberizing holes therein for fiberizing thermoplastic materials by centrifugal force. At least an uppermost row of the annular extending rows of fiberizing holes is interrupted by a plurality of spaced apart generally vertically extending holeless retaining bands for maintaining the upper annular reinforcing flange connected to the annular peripheral sidewall when the annular peripheral sidewall cracks along one of the annular extending rows of fiberizing holes due to the hole wear and enlargement that occurs during service.

REFERENCES:
patent: 6453703 (2002-09-01), Johnson et al.

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