False twist apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 23, 1988
Grant Date -
N/A
app pub date -
Apr 9, 1987
filing date -
May 7, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A false twist apparatus, for processing primarily fine denier yarns at low level twist levels with consistency and good process control, comprises a roller mounted for rotation about its longitudinal axis and input and output guides, to guide the yarn in a helical path around the roller, mounted on a guide support extending adjacent the roller. One of the guides is positionally adjustable on the support in a direction parallel with the roller axis to alter the helix angle of the yarn around the roller and the twist level. For S and Z twist, two drive spindles are provided symmetrically disposed on opposed sides of the support, the roller being secured on the appropriate spindle and the output guide being moved to the appropriate side of the support.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
SCRAGG RIETER LANGLEY MACCLESFIELD CHESHIRE ENGLAND UNITED KINGDOM | Not Provided |
International Classification(s)

- 1987 Application Filing Year
- D02G Class
- 132 Applications Filed
- 2 Patents Issued To-Date
- 1.52 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Lawrence, Christopher J | Macclesfield, GB | 6 | 25 |
# of filed Patents : 6 Total Citations : 25 | |||
Naylor, Geoffrey | Macclesfield, GB | 11 | 41 |
# of filed Patents : 11 Total Citations : 41 | |||
Wilkinson, Philip M | Cheadle, GB | 5 | 27 |
# of filed Patents : 5 Total Citations : 27 |
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Patent Citation Ranking
- 7 Citation Count
- D02G Class
- 0 % this patent is cited more than
- 37 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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