SEAL DEVICE

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20140175754A1
SERIAL NO

14236988

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A seal device including: three ring-shaped first vertical wall portions (21) which extend toward a rotational body (12) from a stationary body (11) and are arranged at predetermined intervals in an axial center direction (A) of the rotational body (12); a ring-shaped second vertical wall portion (22) which extends toward the rotational body (12) from the stationary body (11) and is adjacent to the first vertical wall portions (21), the thickness of which is thicker than the first vertical wall portions (21); a ring-shaped protrusion portion (23) which faces the second vertical wall portion (22) and protrudes toward the stationary body (11) from the rotational body (12); and a plurality of swirl breaker chambers (24) which are arranged in the stationary body (11) at predetermined intervals in a circumferential direction of the rotational body (12) to face the protrusion portion (23).

First Claim

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Patent Owner(s)

Patent OwnerAddress
MITSUBISHI HEAVY INDUSTRIES LTD2-3 MARUNOUCHI 3-CHOME CHIYODA-KU TOKYO 100-8332
MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION34-6 SHIBA 5-CHOME MINATO-KU TOKYO 108-0014

International Classification(s)

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  • 2012 Application Filing Year
  • F16J Class
  • 518 Applications Filed
  • 392 Patents Issued To-Date
  • 75.68 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances20122013201420152016201720182019202020210255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fukao, Shinji Tokyo, JP 8 13
Nakaniwa, Akihiro Tokyo, JP 57 169

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Patent Citation Ranking

  • 1 Citation Count
  • F16J Class
  • 8.72 % this patent is cited more than
  • 11 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges302614174101 - 1011 - 2021 - 3031 - 4091 - 100020406080100120140160180200220240260280

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