SEAL STRUCTURE AND CENTRIFUGAL COMPRESSOR
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United States of America Patent
Stats
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N/A
Issued Date -
Jun 27, 2013
app pub date -
Sep 9, 2011
filing date -
Sep 9, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Importance

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Abstract
Provided is a seal structure (50, 60) configured to seal a clearance (31, 32) with respect to a flow path defined by a rotary body (20) rotated about a central shaft (P) and configured to allow passage of a mainstream, and a stationary body (10) disposed at the rotary body (20) to form the clearance (31, 32), the seal structure including a seal member (51A, 51B) installed at the clearance (31, 32) and configured to divide a fluid introduced from the mainstream into the clearance (31, 32) into a high pressure side and a low pressure side, and a shifting member (52A, 52B) installed at the high pressure side of the fluid in the clearance (31, 32), and configured to allow passage of the fluid and reduce a velocity component in a rotational direction of the rotary body (20) of the velocity component of the fluid.
First Claim
all claims..Other Claims data not available
Family
Country | kind | publication No. | Filing Date | Type | Sub-Type |
---|---|---|---|---|---|
JP | A | JP2012057726 | Sep 09, 2010 | Patent | Application |
Type : Patent Sub-Type : Application | |||||
Published unexamined patent application | SEAL STRUCTURE AND CENTRIFUGAL COMPRESSOR | Mar 22, 2012 | |||
EP | A1 | EP2615338 | Sep 09, 2011 | Patent | Application |
Type : Patent Sub-Type : Application | |||||
APPLICATION PUBLISHED WITH SEARCH REPORT | SEALING STRUCTURE AND CENTRIFUGAL COMPRESSOR | Jul 17, 2013 | |||
WO | A1 | WO2012033192 | Sep 09, 2011 | Patent | Application |
Type : Patent Sub-Type : Application | |||||
INTERNATIONAL APPLICATION PUBLISHED WITH INTERNATIONAL SEARCH REPORT | シール構造及び遠心圧縮機 | Mar 15, 2012 |
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
MITSUBISHI HEAVY INDUSTRIES LTD | 2-3 MARUNOUCHI 3-CHOME CHIYODA-KU TOKYO 1008332 ?1008332 | |
MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION | 6-22 KAN-ON-SHIN-MACHI 4-CHOME NISHI-KU HIROSHIMA-SHI HIROSHIMA 7338553 ?7338553 |
International Classification(s)

- 2011 Application Filing Year
- F04D Class
- 829 Applications Filed
- 694 Patents Issued To-Date
- 83.72 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Nakaniwa, Akihiro | Tokyo, JP | 57 | 169 |
# of filed Patents : 57 Total Citations : 169 |
Cited Art Landscape
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Patent Citation Ranking
- 7 Citation Count
- F04D Class
- 8.61 % this patent is cited more than
- 12 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 |
---|---|---|---|
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 |
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