Blade Segment for Refiner
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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N/A
Issued Date -
Jul 13, 2023
app pub date -
Jun 3, 2021
filing date -
Jun 8, 2020
priority date (Note) -
Published
status (Latency Note)
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Importance

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Abstract
A blade segment (4, 8) for a refiner (1) for refining fibrous material has a first (20) and a second (21) end edge and a first (22) and a second (23) side edge opposite to the first side edge (22) and a refining surface (5, 9) having blade bars (27, 27a, 27b) and grooves (28, 28a, 28b) therebetween on a front surface (25). At least one opening (14, 15) is on at least at one side edge (22, 23) which extends through the whole thickness of the blade segment body (24). There is at least one feed groove (29) on the refining surface, the feed groove (29) extending from the opening and crossing the blade bars and the blade grooves for feeding the material to be refined across the refining surface. The blade bars (27, 27a, 27b) of the blade segment are interlaced at the feed groove.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
VALMET TECHNOLOGIES OY | KEILASATAMA 5 ESPOO 02150 |
International Classification(s)

- 2021 Application Filing Year
- D21D Class
- 37 Applications Filed
- 12 Patents Issued To-Date
- 32.44 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Iisakkila, Tomi | Valkeakoski, FI | 7 | 25 |
# of filed Patents : 7 Total Citations : 25 | |||
Loijas, Marko | Valkeakoski, FI | 8 | 9 |
# of filed Patents : 8 Total Citations : 9 |
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Patent Citation Ranking
- 0 Citation Count
- D21D Class
- 0 % this patent is cited more than
- 2 Age
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