Invention Grant
- Patent Title: Reciprocating seal
- Patent Title (中): 往复式密封
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Application No.: US12230708Application Date: 2008-09-03
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Publication No.: US07918463B2Publication Date: 2011-04-05
- Inventor: Hidenori Arai , Kazuki Takeno , Ichiro Yamane , Shinobu Munekata , Katsumi Yamashina , Masaru Watanabe
- Applicant: Hidenori Arai , Kazuki Takeno , Ichiro Yamane , Shinobu Munekata , Katsumi Yamashina , Masaru Watanabe
- Applicant Address: JP Tokyo
- Assignee: Nok Corporation
- Current Assignee: Nok Corporation
- Current Assignee Address: JP Tokyo
- Agency: Jacobson Holman PLLC
- Priority: JP2002-300650 20021015
- Main IPC: F16J15/32
- IPC: F16J15/32
Abstract:
A reciprocating seal used, for example, for a shock absorber. A main seal lip has a two-step lip structure including a first lip and a second lip and a plurality of protrusions extending in the direction of the shaft are formed on a sliding contact surface of the second lip, thereby improving frictional force characteristics and, at the same time, improving sealing performance.
Public/Granted literature
- US20090134586A1 Reciprocating seal Public/Granted day:2009-05-28
Information query
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