Solid bowl screw centrifuge comprising a distributor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jun 13, 2006
Grant Date -
Feb 12, 2004
app pub date -
Oct 9, 2001
filing date -
Nov 14, 2000
priority date (Note) -
Expired
status (Latency Note)
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Importance

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Abstract
The present invention relates to solid bowl screw centrifuge comprising a centrifuging chamber having a rotatable screw with a center axis and a rotatable drum surrounding the centrifuging chamber. Also included is an axially extending inflow tube for guiding material to be centrifuged into a distributor. The distributor is oriented in a substantially perpendicular manner with respect to the center axis of the screw and configured for introducing the material to be centrifuged into the centrifuging chamber. The distributor further includes at least one wall having a surface structure that includes projections configured such that a substantial portion of the material to be centrifuged flowing through the distributor must flow around at least one of the projections.
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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WESTFALIA SEPARATOR AG | WERNER-HABIG-STRASSE 1 OELDE 59302 |
International Classification(s)

- 2001 Application Filing Year
- B04B Class
- 102 Applications Filed
- 47 Patents Issued To-Date
- 46.08 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Bruning, Paul | Oelde, DE | 15 | 141 |
# of filed Patents : 15 Total Citations : 141 | |||
Hermeler, Ju | Haltern, DE | 3 | 18 |
# of filed Patents : 3 Total Citations : 18 | |||
Horstkotter, Ludger | Ennigerloh, DE | 4 | 15 |
# of filed Patents : 4 Total Citations : 15 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 5 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

Legal Events
Date | Code | Event | Description |
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Apr 22, 2019 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Apr 22, 2019 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Mar 15, 2019 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Mar 15, 2019 |
Nov 05, 2018 | FEPP | FEE PAYMENT PROCEDURE | free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Mar 17, 2014 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Mar 15, 2011 | I | Issuance | |
Feb 23, 2011 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Jun 03, 2009 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BASIL SIMON CHAPTER 7 TRUSTEE FOR THE ESTATE OF MICRO-HEAT, INC.;REEL/FRAME:023016/0040 Owner name: M-HEAT INVESTORS, LLC, IOWA Effective Date: Jun 03, 2009 free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BASIL SIMON CHAPTER 7 TRUSTEE FOR THE ESTATE OF MICRO-HEAT, INC.;REEL/FRAME:023016/0040 Owner name: M-HEAT INVESTORS, LLC,IOWA Effective Date: Jun 03, 2009 |
Aug 28, 2008 | P | Published | |
Apr 05, 2008 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ARKASHEVSKI, URI;ROGOZINSKI, JOSEPH;REEL/FRAME:021038/0974;SIGNING DATES FROM 20071127 TO 20071216 Owner name: MICROHEAT INC., MICHIGAN free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ARKASHEVSKI, URI;ROGOZINSKI, JOSEPH;SIGNING DATES FROM 20071127 TO 20071216;REEL/FRAME:021038/0974 Owner name: MICROHEAT INC.,MICHIGAN free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ARKASHEVSKI, URI;ROGOZINSKI, JOSEPH;SIGNING DATES FROM 20071127 TO 20071216;REEL/FRAME:021038/0974 Owner name: MICROHEAT INC., MICHIGAN |
Feb 11, 2005 | F | Filing | |
Feb 12, 2004 | PD | Priority Date | |
Feb 19, 1998 | AS | ASSIGNMENT | free format text: CHANGE OF NAME;ASSIGNOR:MICROHEAT INC.;REEL/FRAME:022313/0566 Owner name: MICRO-HEAT, INC., MICHIGAN Effective Date: Feb 19, 1998 free format text: CHANGE OF NAME;ASSIGNOR:MICROHEAT INC.;REEL/FRAME:022313/0566 Owner name: MICRO-HEAT, INC.,MICHIGAN Effective Date: Feb 19, 1998 |

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