Method for spreading a tow of textile non-braided filaments, preferably chemical or inorganic filaments
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 2, 2022
Grant Date -
Nov 21, 2019
app pub date -
Mar 27, 2018
filing date -
Mar 30, 2017
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method for spreading a tow of textile non-braided filaments, preferably chemical or inorganic fibres comprises providing a tow of textile non-braided filaments extending along its own main direction and having a section transverse to the main direction with a predetermined thickness and a predetermined width, feeding the tow along a travel path and spreading the tow in order to increase its width and reduce its thickness, defining a spread tow. The step of spreading the tow includes immersing the tow in a bath and generating in the bath a sequence of transverse waves crossing the tow transversely to the main direction in order to separate and place the individual filaments side by side, thereby spreading the tow, wherein the tow entering the bath and/or the spread tow extracted from the bath is/are unsized.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2018 Application Filing Year
- D01D Class
- 339 Applications Filed
- 191 Patents Issued To-Date
- 56.35 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- D01D Class
- 0 % this patent is cited more than
- 3 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Feb 2, 2026 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Feb 2, 2030 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Feb 2, 2034 |
