Seal device

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5181729
SERIAL NO

07749796

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Two identical mechanical seals (6, 7) and (8, 9) respectively and an intermediate spring device (17) are arranged in a holder which is easily replaceable. The spring (17) is common for the two seals and is connected to sockets (13) and (14) respectively which anchor the rotating seal rings (6) and (8) respectively. The oil containment area (20) of the machine is connected to the area containing the spring (17).

First Claim

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Patent Owner(s)

Patent OwnerAddress
ITT FLYGT AKTIEBOLAG A CORP OF SWEDEN171 25 SOLNA

International Classification(s)

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  • 1991 Application Filing Year
  • F16J Class
  • 217 Applications Filed
  • 105 Patents Issued To-Date
  • 48.39 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances199119921993199419950255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Forssberg, Alf Nykvan, SE 1 6
Fredriksson, Boris Huddinge, SE 4 42

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Patent Citation Ranking

  • 6 Citation Count
  • F16J Class
  • 1.92 % this patent is cited more than
  • 32 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges51596621513101 - 1011 - 2021 - 3031 - 4041 - 5051 - 6071 - 800102030405060708090100110120130140150160170

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