Seal device and rotary machine

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9822791
SERIAL NO

14435813

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

Provided is a seal device configured to prevent leakage of a fluid on an outer circumferential surface of a rotary shaft in a direction along an axis of the rotary shaft. The seal device includes an annular main body section disposed in a circumferential direction of the rotary shaft, and a plurality of at least two kinds of holes formed in an inner circumferential surface of the main body section opening and facing to the outer circumferential surface of the rotary shaft, and having different depths.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
MITSUBISHI HEAVY INDUSTRIES LTDKANAGAWA KANAGAWA
MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION34-6 SHIBA 5-CHOME MINATO-KU TOKYO 108-0014

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kiuchi, Daisuke Hiroshima, JP 2 3
Nagai, Naoyuki Tokyo, JP 16 80
Saburi, Satoshi Tokyo, JP 7 8
Sato, Takashi Tokyo, JP 973 9680
Tokuyama, Shinichiro Hiroshima, JP 28 63

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
7.5 Year Payment $3600.00 $1800.00 $900.00 May 21, 2025
11.5 Year Payment $7400.00 $3700.00 $1850.00 May 21, 2029
Fee Large entity fee small entity fee micro entity fee
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
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