OIL SEAL STRUCTURE
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United States of America Patent
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Issued Date -
Mar 21, 2024
app pub date -
Aug 29, 2023
filing date -
Sep 21, 2022
priority date (Note) -
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status (Latency Note)
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Abstract
An oil seal structure is provided for sealing between a first member including an end surface having an opening and a second member covering at least the opening with an elastic annular seal member interposed between the first member and the second member. The oil seal structure includes an annular recess that is provided in the end surface of the first member in a manner of surrounding the opening. The annular recess accommodates the seal member in the annular recess with a part of the seal member protruding from the end surface. At least a surface of the seal member is in contact with oil is covered with a covering of an oil-resistant material, and the seal member is accommodated in the annular recess.
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