Claims
- 1. In an apparatus for making an oriented thermoplastic article, an accumulator for containing a body of thermoplastic material of a volume at least sufficient to form the article, means for adjusting the temperature of the body of said material while in said accumulator to a temperature conducive to orientation, means defining an orifice, said accumulator being spaced from, and communicating with, said orifice by means defining a passageway, means for advancing material under pressure from said body in said accumulator toward and through said orifice communicating with said accumulator via said passageway, means in said passageway intermediate said accumulator and said orifice for shearing said material in a non-linear shear pattern to multi-directionally orient the material prior to its issuance from said orifice, and means for chilling said multi-directionally oriented material exteriorly of said orifice to form an article in which the material is multi-directionally oriented.
Parent Case Info
This is a division of application Ser. No. 164,664, filed June 30, 1980, now U.S. Pat. No. 4,323,340, which is a division of Ser. No. 854,555, filed Nov. 25, 1977, now U.S. Pat. No. 4,305,902, which is a continuation of Ser. No. 670,936, filed Mar. 26, 1976, now abandoned, which is a continuation of Ser. No. 461,361, filed Apr. 16, 1974, now abandoned.
US Referenced Citations (4)
Foreign Referenced Citations (1)
Number |
Date |
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338299 |
Jun 1959 |
CHX |
Divisions (2)
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Number |
Date |
Country |
Parent |
164664 |
Jun 1980 |
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Parent |
854555 |
Nov 1977 |
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Continuations (2)
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Date |
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Parent |
670936 |
Mar 1976 |
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Parent |
461361 |
Apr 1974 |
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