Pulverizing appratus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 6, 1996
Grant Date -
N/A
app pub date -
May 3, 1993
filing date -
May 3, 1992
priority date (Note) -
Expired
status (Latency Note)
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Importance

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Abstract
A pulverizing apparatus comprising: a grinding chamber formed between the inlet of materials and the outlet of the materials with bearings at the bottom, a shaft supported in the bearings extending into the grinding chamber and being driven by a motor, a conical plate mounted on the shaft with more than one radial blades or radial hammer plates on its inner surface, a powder selector, an air-blower and an air duct connecting the blower with the grinding chamber, the air vent of said air duct located above the conical plate. The pulverizing apparatus merges hammer pulverization, impact pulverization and power self-grind into a whole, which simultaneously finishes intermediate crush, fine crush and grinding materials, and which can improve the fineness and transmit the unfinished product into a selecting system by creating the high speed vortex.
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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WUHAN UNIVERSITY OF TECHNOLOGY | 430070 HUBEI PROVINCE WUHAN CITY HONGSHAN DISTRICT LUOSHI ROAD NO 122 WUHAN CITY HUBEI PROVINCE 430070 |
International Classification(s)

- 1993 Application Filing Year
- B02C Class
- 273 Applications Filed
- 82 Patents Issued To-Date
- 30.04 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Wang, Zigiang | Wuhan, CN | 1 | 4 |
# of filed Patents : 1 Total Citations : 4 | |||
Yu, Liangzhong | Wuhan, CN | 1 | 4 |
# of filed Patents : 1 Total Citations : 4 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 4 Citation Count
- B02C Class
- 7.84 % this patent is cited more than
- 29 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 |
---|---|---|---|
Mar 14, 2016 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Feb 14, 2016 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Feb 14, 2016 |
Feb 14, 2016 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | |
Sep 25, 2015 | REMI | MAINTENANCE FEE REMINDER MAILED | |
Feb 14, 2012 | I | Issuance | |
Jul 30, 2009 | P | Published | |
Jan 05, 2009 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:YONEYA, AKIHIKO;REEL/FRAME:022198/0241 Owner name: NATIONAL UNIVERSITY CORPORATION, JAPAN Effective Date: Jan 05, 2009 |
Jul 27, 2006 | F | Filing | |
Jul 27, 2006 | PD | Priority Date |

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