Sealing device
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United States of America Patent
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Jun 18, 2024
Grant Date -
Jun 22, 2023
app pub date -
Jun 2, 2021
filing date -
Jun 12, 2020
priority date (Note) -
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status (Latency Note)
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Abstract
A sealing device has a first sealing member and a second sealing member. The first sealing member has a cylindrical part mounted on an outer member, and a lip. The second sealing member has a sleeve into which an inner member is fitted, and a flange extending radially outward. The flange has a rigid flange portion connected to the sleeve, and a circular annular elastic flange portion that adheres to the rigid flange portion. An annular protrusion is formed on an inner periphery of the elastic flange portion, and is in contact with an outer peripheral surface of the inner member. In an initial state, the inner peripheral surface of the protrusion has a cylindrical portion having an inner diameter that is less than that of the sleeve. The cylindrical portion has a length of at least 0.15 mm in the initial state.
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