Method for removing the precoat layer of a rotary filter
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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May 2, 2017
Grant Date -
Oct 15, 2015
app pub date -
Feb 5, 2013
filing date -
Feb 6, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
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Abstract
A method associated for treating a precoat on a rotating filtering surface of lime sludge filter including: accumulating a precoat of lime sludge on the filtering surface by rotating the filtering surface in a first direction through a lime sludge slurry; after accumulating the precoat, rotating the filtering surface in an opposite direction to the first direction; while rotating the filtering surface in the opposite direction, spraying a liquid onto the precoat on the filtering surface wherein the spraying is applied to the precoat above a scraper adjacent the filtering surface and the spraying removes at least a portion of the precoat from the filtering surface, and flowing the removed precoat over the scraper and into a basin.
First Claim
Other Claims data not available
Family
| Country | kind | publication No. | Filing Date |
|---|---|---|---|
| FI | B | FI124273 | Feb 06, 2012 |
| WO | A1 | WO2013117812 | Feb 05, 2013 |
| UY | A | UY34619 | Feb 05, 2013 |
| EP | B1 | EP2812092 | Feb 05, 2013 |
| CA | C | CA2876912 | Feb 05, 2013 |
| MX | B | MX351885 | Feb 05, 2013 |
| CN | B | CN104159649 | Feb 05, 2013 |
| AU | B2 | AU2013217833 | Feb 05, 2013 |
| MY | A | MY175886 | Feb 05, 2013 |
| JP | B2 | JP6266538 | Feb 05, 2013 |
| NZ | A | NZ626393 | Feb 05, 2013 |
| BR | B1 | BR112014017798 | Feb 05, 2013 |
| RU | C2 | RU2615384 | Feb 05, 2013 |
| AR | A1 | AR090064 | Feb 06, 2013 |
| CL | A1 | CL2014001787 | Jul 04, 2014 |
International Classification(s)
- 2013 Application Filing Year
- B01D Class
- 3390 Applications Filed
- 3056 Patents Issued To-Date
- 90.15 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 1 Citation Count
- B01D Class
- 26.30 % this patent is cited more than
- 8 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Nov 2, 2028 |
