JPS51121947A - Smoke prevention damper - Google Patents

Smoke prevention damper

Info

Publication number
JPS51121947A
JPS51121947A JP4619575A JP4619575A JPS51121947A JP S51121947 A JPS51121947 A JP S51121947A JP 4619575 A JP4619575 A JP 4619575A JP 4619575 A JP4619575 A JP 4619575A JP S51121947 A JPS51121947 A JP S51121947A
Authority
JP
Japan
Prior art keywords
prevention damper
smoke prevention
smoke
damper
detected
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
JP4619575A
Other languages
Japanese (ja)
Inventor
Koichi Murakami
Kazumi Kudo
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.)
Sansei KK
Original Assignee
Sansei KK
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 Sansei KK filed Critical Sansei KK
Priority to JP4619575A priority Critical patent/JPS51121947A/en
Publication of JPS51121947A publication Critical patent/JPS51121947A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To provide a dust prevention damper, which can be smoothly rotated and closed when smoke is detected by a smoke sensor.
COPYRIGHT: (C)1976,JPO&Japio
JP4619575A 1975-04-16 1975-04-16 Smoke prevention damper Pending JPS51121947A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4619575A JPS51121947A (en) 1975-04-16 1975-04-16 Smoke prevention damper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4619575A JPS51121947A (en) 1975-04-16 1975-04-16 Smoke prevention damper

Publications (1)

Publication Number Publication Date
JPS51121947A true JPS51121947A (en) 1976-10-25

Family

ID=12740273

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4619575A Pending JPS51121947A (en) 1975-04-16 1975-04-16 Smoke prevention damper

Country Status (1)

Country Link
JP (1) JPS51121947A (en)

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