ARRANGEMENT FOR FEEDING COMMINUTED MATERIAL USING A PLUG SCREW FEEDER
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United States of America Patent
Stats
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N/A
Issued Date -
Mar 30, 2017
app pub date -
May 19, 2015
filing date -
May 22, 2014
priority date (Note) -
Published
status (Latency Note)
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Abstract
A feeding arrangement for feeding comminuted material to a treatment stage using a plug screw feeder. The invention relates to a design of the inlet to the plug screw feeder wherein, at least 2 chutes (20a,20b) are arranged to feed material to the feed screw (10), and that the cross section of each chute is arranged such that more than 50% of the outlet cross section of a first chute (20a) is located on one side of the feed screw axis (CC) and more than 50% of the outlet cross section of a second chute (20b) is located on the other side of the feed screw axis. In an upgrade version for existing plug screw feeders with large rectangular inlets is an insert body (11a) used filling the rectangular inlet, besides the chutes (20a, 20b) passing through the insert body (11a).
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 AB | GUSTAF GIDLÖFS VÄG 1 IP DEPT SUNDSVALL 85194 |
International Classification(s)

- 2015 Application Filing Year
- D21B Class
- 47 Applications Filed
- 35 Patents Issued To-Date
- 74.47 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Mellander, Stefan | Alnö, SE | 5 | 8 |
# of filed Patents : 5 Total Citations : 8 | |||
Svedberg, Peter | Alnö, SE | 7 | 26 |
# of filed Patents : 7 Total Citations : 26 |
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Patent Citation Ranking
- 1 Citation Count
- D21B Class
- 55.56 % this patent is cited more than
- 8 Age
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- No Forward Cites to Display

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 30, 2028 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
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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