Stock-controlling method for a storage yarn feeder with rotary drum
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United States of America Patent
Stats
-
Mar 28, 2017
Grant Date -
Aug 13, 2015
app pub date -
Feb 12, 2015
filing date -
Feb 13, 2014
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A yarn feeder is provided with a drum which is driven to rotate by a motor controlled by a control unit for drawing yarn from a reel and winding it upon itself in the shape of loops forming a stock. The control unit estimates the stock on the drum on the basis of an information indicative of the amount of yarn which is unwound from the drum upon request from a downstream machine, and of an information indicative of the amount of yarn which is wound on the drum, and retroactively controls the motor to substantially stabilize the stock on a reference value. The control unit also performs a parallel correction routine in which compares the stock with the reference value to estimate a stock status RES
First Claim
Other Claims data not available
Family
International Classification(s)
- 2015 Application Filing Year
- D04B Class
- 157 Applications Filed
- 122 Patents Issued To-Date
- 77.71 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- D04B Class
- 0 % this patent is cited more than
- 8 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Sep 28, 2028 |
