Hydrocyclone and separator assemblies utilizing hydrocyclones
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Oct 10, 2000
Issued Date -
N/A
app pub date -
Feb 28, 1997
filing date -
Mar 29, 1996
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Hydrocyclones for use in separator assemblies, which have stationary wall members or at least one removable wall member and contain a plurality of hydrocyclones, include a tubular body having an under flow end and an overflow end. The hydrocyclone has an interior defined by an axially-extending frusto-conical separating chamber which extends from an inlet chamber nearer the overflow end to an underflow outlet opening at the underflow end. The body also has a rectangular tangential inlet to the inlet chamber. The hydrocyclone further includes a tubular vortex-finder member which fits through the overflow end of the body into a cooperating seat therein. The vortex-finder member is seated in a predetermined position in which a portion thereof extends through the inlet chamber to define the axial overflow outlet from the separating chamber. The portion has a helical guide surface to guide the inlet flow from the tangential inlet towards the separating chamber.
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 | |
---|---|---|
CORN PRODUCTS DEVELOPMENT INC | 5 WESTBROOK CORPORATE CENTER WESTCHESTER IL 60154 |
International Classification(s)

- 1997 Application Filing Year
- B04C Class
- 11 Applications Filed
- 6 Patents Issued To-Date
- 54.55 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Childs, Geoffrey J | Truro, GB | 3 | 59 |
# of filed Patents : 3 Total Citations : 59 | |||
Trickey, Lawrence A | London, CA | 3 | 33 |
# of filed Patents : 3 Total Citations : 33 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 14 Citation Count
- B04C Class
- 64.71 % this patent is cited more than
- 25 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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Feb 06, 2017 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Jan 08, 2017 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Jan 08, 2017 |
Jan 08, 2017 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | |
Aug 19, 2016 | REMI | MAINTENANCE FEE REMINDER MAILED | |
Jan 08, 2013 | I | Issuance | |
Dec 02, 2010 | P | Published | |
May 14, 2010 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KITCHENER, RENATO;ROGOLL, GUNTHER;KESSLER, MICHAEL;SIGNING DATES FROM 20100204 TO 20100215;REEL/FRAME:024392/0131 Owner name: PEPPERL + FUCHS GMBH, GERMANY |
May 09, 2008 | F | Filing | |
May 11, 2007 | PD | Priority Date |

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