Multi stage air cleaning machine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 9, 2019
Grant Date -
Feb 28, 2019
app pub date -
Aug 31, 2017
filing date -
Aug 31, 2017
priority date (Note) -
In Force
status (Latency Note)
Importance
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Abstract
An assembly for cleaning material from a flowable product includes multiple stages of air cleaning for a product. Each air cleaning stage includes a vertical air column, an air knife, and at least one airlock. After introducing a product into the air column, the air knife disturbs material from the product and the material is carried away by the vertical air column. The airlock prevents significant disturbance of the vertical air column during operation. The cleaned product is delivered after a single cycle through the assembly having passed through several stages of cleaning.
First Claim
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International Classification(s)
- 2017 Application Filing Year
- B07B Class
- 157 Applications Filed
- 128 Patents Issued To-Date
- 81.53 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 1 Citation Count
- B07B Class
- 50.50 % this patent is cited more than
- 6 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jan 9, 2027 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jan 9, 2031 |
