VACUUM CIRCUIT BREAKER

Number of patents in Portfolio can not be more than 2000

United States of America Patent

SERIAL NO

15540433

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A vacuum circuit breaker includes a ground tank, first and second vacuum interrupters, a link mechanism for opening and closing the vacuum interrupters and a link mechanism case housing the link mechanism and supported by an insulating support tube. An insulating operation rod for operating the link mechanism is provided through the insulating support tube and a side portion of the ground tank. An operation room is provided around the portion of the ground tank through which the insulating operation rod is inserted. A conversion mechanism for driving the insulating operation rod is arranged in the operation room. A space communicating with inner sides of bellows of the vacuum interrupters (including the inside of the link mechanism case and the inside of the insulating support tube) is filled with insulating gas of 0.3 MPa or lower. The other space is filled with insulating gas of higher pressure.

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Patent Owner(s)

Patent OwnerAddress
MEIDENSHA CORPORATION1-1 OSAKI 2-CHOME SHINAGAWA-KU TOKYO 141-6029

International Classification(s)

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  • 2015 Application Filing Year
  • H01H Class
  • 1328 Applications Filed
  • 1156 Patents Issued To-Date
  • 87.05 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances201520162017201820192020202120220255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
NAGATAKE, Kazuhiro Numazu-shi, Shizuoka, JP 4 48
SUWA, Akihiro Numazu-shi, Shizuoka, JP 3 18

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Patent Citation Ranking

  • 7 Citation Count
  • H01H Class
  • 26.63 % this patent is cited more than
  • 7 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges2706734215741201 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 70050100150200250300350400450500550600650700750

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