Mechanical seal
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United States of America Patent
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Jan 10, 2023
Grant Date -
May 27, 2021
app pub date -
Feb 19, 2019
filing date -
Feb 21, 2018
priority date (Note) -
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status (Latency Note)
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Abstract
The purpose of the present invention is to provide a mechanical seal whose axial dimension can be reduced without impairing sealing performance. In a mechanical seal including a rotating-side sealing ring 11; a stationary-side sealing ring 21 provided within a case 22 and sliding on the rotating-side sealing ring 11; a biasing member 24 for biasing the stationary-side sealing ring 21 to the rotating-side sealing ring 11; and an engagement means 25 for restricting the rotational relative movement between the case 22 and the stationary-side sealing ring 21, the biasing member 24 is arranged radially outside the stationary-side sealing ring 21.
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