Patent JPS5245A successfully refreshed from Google Patents.
JPS5245A
Expired / Lapsed
JP
⏱️ 0.0 years remaining
Device for opening and closing blades for fume exhausting and fire-res isting damper or shutter and the like
Assignee: NIKKEI KIZAI KK
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Filing: 1975-06-21
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Granted: —
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Expires: 1995-06-21
Abstract
Abstract PURPOSE: To provide one damper device which can serve both to exhaust smoke and to eliminate a fire by providing two spring-biased stopper members for reversibly rotating rotary shaft fixed with blades thereto in such a manner that the members may seratately be operable. COPYRIGHT: (C)1977,JPO&Japio
Inventors
- 👤 Tadashi Hagimoto
- 👤 Masatoshi Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
JP
Data Source
google_patents
Last Synchronized
2026-11-08 23:43
CPC Classifications
—
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