Apparatus and method for a high-efficiency self-cleaning centrifuge having concentrate cylinders
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United States of America Patent
Stats
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Jul 18, 2006
Issued Date -
N/A
app pub date -
Nov 28, 2003
filing date -
Dec 16, 2002
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A self-cleaning centrifuge for clarifying contaminated liquids has a rotor assembly comprising nested first and second sets of concentric cylinders supported for rotation about an axis. The sets of concentric cylinders are rotatably connected. A motor is connected to rotate one of the sets. Contaminated liquid is supplied to the nested cylinders, and the liquid provides coupling between both of the sets so that both sets rotate about the axis. Centrifugal force causes foreign matter to collect on the circumferential surfaces of the cylinders. The resultant clarified liquid is collected for reuse. A selectively utilized brake provides sudden braking of one of the rotating sets to purge collected foreign matter from the cylinders. The purged foreign matter is collected for disposal.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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ADVANCED PRODUCTS LABORATORIES INC | 13653 OAKWOOD CURVE BURNSVILLE MN 55337 |
International Classification(s)

- 2003 Application Filing Year
- B04B Class
- 95 Applications Filed
- 42 Patents Issued To-Date
- 44.22 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Dudrey, Denis J | Bloomington, MN | 25 | 1919 |
# of filed Patents : 25 Total Citations : 1919 | |||
Gehrking, James N | Burnsville, MN | 2 | 8 |
# of filed Patents : 2 Total Citations : 8 | |||
Gorham, Adelbert | Burnsville, MN | 3 | 107 |
# of filed Patents : 3 Total Citations : 107 | |||
Jorgenson, Ronald L | Apple Valley, MN | 5 | 82 |
# of filed Patents : 5 Total Citations : 82 | |||
Paulson, David S | Elko, MN | 1 | 7 |
# of filed Patents : 1 Total Citations : 7 | |||
Spears, Rodger I | Bloomington, MN | 5 | 322 |
# of filed Patents : 5 Total Citations : 322 | |||
Weisert, Lloyd E | Bloomington, MN | 3 | 167 |
# of filed Patents : 3 Total Citations : 167 |
Cited Art Landscape
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Patent Citation Ranking
- 7 Citation Count
- B04B Class
- 5.56 % this patent is cited more than
- 19 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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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 |
Full Text

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Jan 25, 2023 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 8TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1552); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 8 |
Jan 31, 2019 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 4 |
Aug 19, 2015 | AS | ASSIGNMENT | free format text: CHANGE OF NAME;ASSIGNOR:MOLEX INCORPORATED;REEL/FRAME:062820/0197 Owner name: MOLEX, LLC, ILLINOIS Effective Date: Aug 19, 2015 |
Aug 11, 2015 | I | Issuance | |
Jul 22, 2015 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Jan 03, 2013 | P | Published | |
Aug 23, 2012 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MATSUMOTO, YASUYOSHI;TOMITA, MITSUHIRO;FUJIKAWA, TAKASHI;REEL/FRAME:028918/0961 Owner name: MOLEX INCORPORATED, ILLINOIS Effective Date: Aug 23, 2012 |
Dec 08, 2010 | F | Filing | |
Dec 08, 2009 | PD | Priority Date |

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