Steam evacuation in a pulp or fiber refiner
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 13, 2022
Grant Date -
N/A
app pub date -
Feb 8, 2018
filing date -
Mar 3, 2017
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A refining disc (6) in a defibrator (1) for refining fibrous material is provided with non-central openings (11) for allowing steam developed in the refining space (2) during refining to flow from the front side to the backside of the refining disc (6), where the front side is facing a second refining disc (5) and the backside is facing away from the second refining disc (5). The refining disc (6) also comprises a central hole (12) for allowing steam (8b) to flow from the backside to the front side at the rotational center of the refining disc (6), and escape from the defibrator (1) backwards through the feed screw (3a) without passing through the fibrous material (7) being refined in the refining space (2).
First Claim
Other Claims data not available
Family
International Classification(s)
- 2018 Application Filing Year
- D21B Class
- 59 Applications Filed
- 33 Patents Issued To-Date
- 55.94 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- D21B Class
- 0 % this patent is cited more than
- 3 Age
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