Seal device for turbine, turbine, and thin plate for seal device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 26, 2020
Grant Date -
Feb 15, 2018
app pub date -
Feb 9, 2016
filing date -
Feb 20, 2015
priority date (Note) -
In Force
status (Latency Note)
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Importance

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Abstract
A seal device for a turbine includes: a plurality of thin plates arranged along an outer peripheral surface of the rotor, each of the thin plates including a root portion disposed on an outer side in a radial direction of the rotor and supported on a stationary part of the turbine and a tip portion disposed on an inner side in the radial direction of the rotor and having a tip surface facing the outer peripheral surface of the rotor. Each of the thin plates is configured such that a width direction of the thin plate is parallel to an axial direction of the rotor at a side of the root portion, and the tip portion of each of the thin plates is configured such that an end on a side of the high-pressure space is positioned downstream of another end on a side of the low-pressure side.
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 | |
---|---|---|
MITSUBISHI POWER LTD | 3-1 MINATOMIRAI 3-CHOME NISHI-KU YOKOHAMA 220-8401 |
International Classification(s)

- 2016 Application Filing Year
- F02C Class
- 1716 Applications Filed
- 1148 Patents Issued To-Date
- 66.90 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Hamada, Katsuhisa | Kanagawa, JP | 27 | 56 |
# of filed Patents : 27 Total Citations : 56 | |||
Hatano, Kohei | Tokyo, JP | 9 | 12 |
# of filed Patents : 9 Total Citations : 12 | |||
Kuwamura, Yoshihiro | Tokyo, JP | 48 | 225 |
# of filed Patents : 48 Total Citations : 225 | |||
Matsuyama, Keisuke | Tokyo, JP | 37 | 237 |
# of filed Patents : 37 Total Citations : 237 | |||
Nishikawa, Toyoharu | Tokyo, JP | 20 | 54 |
# of filed Patents : 20 Total Citations : 54 | |||
Oyama, Hiroharu | Kanagawa, JP | 34 | 205 |
# of filed Patents : 34 Total Citations : 205 | |||
Ozaki, Kohei | Tokyo, JP | 20 | 7 |
# of filed Patents : 20 Total Citations : 7 | |||
Sugishita, Hideaki | Tokyo, JP | 57 | 572 |
# of filed Patents : 57 Total Citations : 572 | |||
Uehara, Hidekazu | Tokyo, JP | 52 | 391 |
# of filed Patents : 52 Total Citations : 391 | |||
Yoshida, Azumi | Tokyo, JP | 23 | 11 |
# of filed Patents : 23 Total Citations : 11 |
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Patent Citation Ranking
- 0 Citation Count
- F02C Class
- 0 % this patent is cited more than
- 5 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Nov 26, 2027 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Nov 26, 2031 |
Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
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Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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