Measuring and testing – Specimen stress or strain – or testing by stress or strain... – By loading of specimen
Reexamination Certificate
2007-05-22
2007-05-22
Lefkowitz, Edward (Department: 2855)
Measuring and testing
Specimen stress or strain, or testing by stress or strain...
By loading of specimen
C073S159000, C073S160000, C073S788000, C073S789000, C073S826000, C073S827000
Reexamination Certificate
active
10996611
ABSTRACT:
A process for measuring snarling properties of a yarn is provided. Firstly a first and a second point of the yarn are held in close proximity, and a portion of the yarn between the two points is of a predetermined length. A predetermined tension force is temporarily exerted to the portion of the yarn, and simultaneously the portion of the yarn is temporarily restricted from twisting when the tension force is exerted. Then the portion of the yarn is released from the tension force such that the portion of the yarn is able to twist freely so as to form snarls thereon. Thereafter, the snarling properties of the yarn are measured by detecting an amount of the snarls thereby formed.
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Murrells Charlotte
Tao Xiao-ming
Wong Ka-Kee
Xu Bingang
Jacobson & Holman PLLC
Kirkland, III Freddie
Lefkowitz Edward
The Hong Kong Polytechnic University
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