JPS6487980A - Seal mechanism - Google Patents

Seal mechanism

Info

Publication number
JPS6487980A
JPS6487980A JP24431587A JP24431587A JPS6487980A JP S6487980 A JPS6487980 A JP S6487980A JP 24431587 A JP24431587 A JP 24431587A JP 24431587 A JP24431587 A JP 24431587A JP S6487980 A JPS6487980 A JP S6487980A
Authority
JP
Japan
Prior art keywords
ring
seal
opening
time
seal part
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP24431587A
Other languages
Japanese (ja)
Inventor
Junichiro Maruyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Priority to JP24431587A priority Critical patent/JPS6487980A/en
Publication of JPS6487980A publication Critical patent/JPS6487980A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To hold a sealing function preventing a contaminant substance from adhering to a seal part by mounting a dummy O ring, which seals the seal part in the time of opening, to a seal plate, performing opening and closing action between two ports, in addition to an O ring for use in the time of closing. CONSTITUTION:Opening and closing action between ports 12 and 13 is performed by seal plates 31a, 31b, 31c arranged in a casing 11. The seal plates 31a, 31b, 31c are laterally moved by a cylinder shaft 14. An O ring 18, which seals a seal part of the casing 11 in the time of closing, and a dummy O ring, which seals the seal part in the time of opening, are mounted onto the seal plates 31a, 31b, 31c. Thus because the seal part is forced to be attached to the dummy O ring even in the time of opening, the seal part and the O ring are protected from a stain and reactive gas.
JP24431587A 1987-09-30 1987-09-30 Seal mechanism Pending JPS6487980A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24431587A JPS6487980A (en) 1987-09-30 1987-09-30 Seal mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24431587A JPS6487980A (en) 1987-09-30 1987-09-30 Seal mechanism

Publications (1)

Publication Number Publication Date
JPS6487980A true JPS6487980A (en) 1989-04-03

Family

ID=17116896

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24431587A Pending JPS6487980A (en) 1987-09-30 1987-09-30 Seal mechanism

Country Status (1)

Country Link
JP (1) JPS6487980A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100505292B1 (en) * 1999-10-28 2005-08-03 제일모직주식회사 Polycarbonate Resin Composition Having High Impact Resistance

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100505292B1 (en) * 1999-10-28 2005-08-03 제일모직주식회사 Polycarbonate Resin Composition Having High Impact Resistance

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