Invention Grant
- Patent Title: Rotary joint
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Application No.: US15263013Application Date: 2016-09-12
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Publication No.: US10088089B2Publication Date: 2018-10-02
- Inventor: Yoshinori Kikuyama , Osamu Suzuki
- Applicant: NIPPON PILLAR PACKING CO., LTD.
- Applicant Address: JP Osaka-Shi, Osaka
- Assignee: NIPPON PILLAR PACKING CO., LTD.
- Current Assignee: NIPPON PILLAR PACKING CO., LTD.
- Current Assignee Address: JP Osaka-Shi, Osaka
- Agency: Lewis Roca Rothgerber Christie LLP
- Priority: JP2015-180666 20150914
- Main IPC: F16L39/04
- IPC: F16L39/04 ; F16L27/087 ; A61M1/00 ; F16L19/06

Abstract:
Provided is a rotary joint that allows a case body to be made compact. A rotary joint includes: a cylindrical case body having a plurality of first flow passages formed therein; a shaft body having a plurality of second flow passages formed therein; rolling bearings and provided in an annular space formed between the case body and the shaft body; a plurality of tubular members provided in the annular space and each having a third flow passage formed for connecting the first flow passage and the second flow passage; a first seal configured to prevent leak of a fluid flowing through the first flow passage and the third flow passage; and a second seal configured to prevent leak of a fluid flowing through the third flow passage and the second flow passage.
Public/Granted literature
- US20170074445A1 ROTARY JOINT Public/Granted day:2017-03-16
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