JPS53120059A - Negative-pressure activated device - Google Patents

Negative-pressure activated device

Info

Publication number
JPS53120059A
JPS53120059A JP3448277A JP3448277A JPS53120059A JP S53120059 A JPS53120059 A JP S53120059A JP 3448277 A JP3448277 A JP 3448277A JP 3448277 A JP3448277 A JP 3448277A JP S53120059 A JPS53120059 A JP S53120059A
Authority
JP
Japan
Prior art keywords
negative
pressure activated
activated device
diaphragm
rib
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
JP3448277A
Other languages
Japanese (ja)
Inventor
Hiroshi Fujiwara
Hiromitsu Nagae
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP3448277A priority Critical patent/JPS53120059A/en
Publication of JPS53120059A publication Critical patent/JPS53120059A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: In a negative-pressure activated device, to protect diaphragm from damage by means of a ring rib coaxial with an operating lever on the center thereof and by caulking diaphragm with the rib.
COPYRIGHT: (C)1978,JPO&Japio
JP3448277A 1977-03-30 1977-03-30 Negative-pressure activated device Pending JPS53120059A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3448277A JPS53120059A (en) 1977-03-30 1977-03-30 Negative-pressure activated device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3448277A JPS53120059A (en) 1977-03-30 1977-03-30 Negative-pressure activated device

Publications (1)

Publication Number Publication Date
JPS53120059A true JPS53120059A (en) 1978-10-20

Family

ID=12415459

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3448277A Pending JPS53120059A (en) 1977-03-30 1977-03-30 Negative-pressure activated device

Country Status (1)

Country Link
JP (1) JPS53120059A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63167178U (en) * 1987-04-16 1988-10-31

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63167178U (en) * 1987-04-16 1988-10-31
JPH0532543Y2 (en) * 1987-04-16 1993-08-19

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