Gas supply apparatus and air or nitrogen supply apparatus of nuclear plant

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9916908
SERIAL NO

14528522

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A gas supply apparatus of the present invention includes a gas discharge line of a first electromagnetic valve having s a switching valve placed therein, and a second electromagnetic valve placed between the switching valve and a gas supply source. The switching valve switches between a gas discharge from the first electromagnetic valve and a gas supply to the first electromagnetic valve. At the time of a normal operation, the second electromagnetic valve opens a gas discharge line side and closes a switching valve side, and when the power source is lost, the second electromagnetic valve opens the switching valve side and closes the gas discharge line side. In this way, even when the power source is lost, an operating valve can not only be operated remotely but also be operated safely by a remote operator.

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Patent Owner(s)

Patent OwnerAddress
HITACHI-GE NUCLEAR ENERGY LTD1-1 SAIWAI-CHO 3-CHOME HITACHI-SHI IBARAKI

International Classification(s)

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  • 2014 Application Filing Year
  • F16K Class
  • 1571 Applications Filed
  • 1342 Patents Issued To-Date
  • 85.43 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances20142015201620172018201920202021202220230255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kiyotoki, Yoshihisa Hitachi, JP 22 77
Kubota, Ryo Hitachi, JP 118 1165
Onodera, Kenji Hitachi, JP 12 49

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Patent Citation Ranking

  • 0 Citation Count
  • F16K Class
  • 0 % this patent is cited more than
  • 7 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges39667119931201 - 1011 - 2021 - 3031 - 4041 - 5051 - 60050100150200250300350400450500550600650700750

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