Textiles: spinning – twisting – and twining – Apparatus and processes – Receiving twist type
Reexamination Certificate
2007-06-26
2009-06-30
Hurley, Shaun R (Department: 3765)
Textiles: spinning, twisting, and twining
Apparatus and processes
Receiving twist type
C057S282000, C057S352000
Reexamination Certificate
active
07552580
ABSTRACT:
A method of producing a high quality of yarn by an iron-heating apparatus, including the steps of: guiding a yarn to pass between upper and lower rollers, wherein the yarn is exited at a front nip in a twisting triangle area; guiding the yarn to enter to a groove of a heating main body of the iron-heating apparatus; heating the yarn along the groove to reduce a rigidity of the yarn so as to allow the yarn to be easily twisted to form an improved yarn with high quality; and enwrapping the improved yarn on a spun yarn tube. In addition, a counter frictional force is applied at the yarn through walls of the groove such that fiber on a surface of the yarn is further twisted to the yarn for minimizing hairiness.
REFERENCES:
patent: 3589120 (1971-06-01), Phillips
patent: 3678676 (1972-07-01), Rothwell et al.
patent: 3777465 (1973-12-01), Buzano
patent: 6332311 (2001-12-01), Todo et al.
Cui Weigang
Li Wenbin
Xia Zhigang
Xu Weilin
Ye Wenxiang
Chan Raymond Y.
David and Raymond Patent Firm
Hurley Shaun R
Wuhan University of Science & Engineering
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