Shut-off valve

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9816621
SERIAL NO

14702797

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Abstract

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There is provided a shut-off valve including: a valve body part having a valve body surface; a valve seat part provided around an inlet, and having a valve seat surface disposed at a position opposite to the valve body surface; and a moving mechanism that is connected to the valve body part, and moves the valve body part in a direction of an axis to switch to either a shut-off state or a circulation state, wherein the valve seat part has an endless inner peripheral side projection and an endless outer peripheral side projection that project from the valve seat surface toward the valve body surface along the axis, and the valve body part has a diaphragm forming the valve body surface, and an elastic member disposed on a back surface of the diaphragm.

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Patent Owner(s)

Patent OwnerAddress
SURPASS INDUSTRY CO LTDGYODA-SHI SAITAMA 361-0037

International Classification(s)

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  • 2015 Application Filing Year
  • F16K Class
  • 1801 Applications Filed
  • 1435 Patents Issued To-Date
  • 79.68 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances20152016201720182019202020212022202320240255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hasunuma, Masahiro Gyoda, JP 51 346

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  • 0 Citation Count
  • F16K Class
  • 0 % this patent is cited more than
  • 8 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges31867022761101 - 1011 - 2021 - 3031 - 4041 - 5071 - 80050100150200250300350400450500550600650700750

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