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.)
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Hitachi Plant Technologies Ltd
Original Assignee
Hitachi Plant Technologies Ltd
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Publication date
Application filed by Hitachi Plant Technologies LtdfiledCriticalHitachi Plant Technologies Ltd
Priority to JP3375777ApriorityCriticalpatent/JPS53130841A/en
Publication of JPS53130841ApublicationCriticalpatent/JPS53130841A/en
PURPOSE: To simplify duct connecting operation for making duct system for air conditioner, by attaching a multiplicity of diffusers to ducts arranged on the ceiling of a room, and controlling the hot-or cool-air flow by opening and closing these diffusers.
COPYRIGHT: (C)1978,JPO&Japio
JP3375777A1977-03-251977-03-25Duct device for air conditioner
PendingJPS53130841A
(en)