A CENTRIFUGAL SEPARATOR
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 -
Feb 1, 2024
app pub date -
Feb 2, 2022
filing date -
Feb 17, 2021
priority date (Note) -
Published
status (Latency Note)
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Abstract
A centrifugal separator for separating at least one liquid phase and a solids phase from a liquid feed mixture includes a frame, a drive member and a rotating part. The drive member is configured to rotate the rotating part in relation to the frame around an axis of rotation. The rotating part includes a centrifuge bowl enclosing a separation space and a sludge space. The separation space includes a stack of separation discs arranged coaxially around the axis of rotation and the sludge space is arranged radially outside said stack of separation discs. The centrifuge bowl includes an inlet for receiving the liquid feed mixture, at least one liquid outlet for a separated liquid phase, and at least one sludge outlet for a separated solids phase. The upper inner surface of the sludge space forms an upper sludge space angle β relative the axis of rotation as seen in an axial plane. The upper inner surface extends radially at least half the radial distance from the at least one sludge outlet to the radial outer edge of the stack of separation discs and the upper sludge space angle β is more than 5 degrees but less than 15 degrees.
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 | |
---|---|---|
ALFA LAVAL CORPORATE AB | P O BOX 73 LUND SE-221 00 |
International Classification(s)

- 2022 Application Filing Year
- B04B Class
- 100 Applications Filed
- 26 Patents Issued To-Date
- 26 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
DEURELL, Tomas | ÅRSTA, SE | 3 | 119 |
# of filed Patents : 3 Total Citations : 119 | |||
HILDING, Klas | ÄLTA, SE | 4 | 13 |
# of filed Patents : 4 Total Citations : 13 |
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Patent Citation Ranking
- 0 Citation Count
- B04B Class
- 0 % this patent is cited more than
- 1 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Aug 1, 2027 |
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Aug 1, 2031 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Aug 1, 2035 |
Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge - 3.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
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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