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.)
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 Plant Engineering and Construction Co 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 Plant Engineering and Construction Co LtdfiledCriticalHitachi Plant Engineering and Construction Co Ltd
Priority to JP3375677ApriorityCriticalpatent/JPS53130840A/en
Publication of JPS53130840ApublicationCriticalpatent/JPS53130840A/en
PURPOSE: To provide a duct system for air conditioner, in which a damper is provided at each of the connecting portions between ducts that are arranged on the ceiling of a room, so that hot- or cool-air flow is controlled by these dampers, and prefabricated duct units are used for completing the ducts, whereby duct connecting works on the site can be simplified greatly.
COPYRIGHT: (C)1978,JPO&Japio
JP3375677A1977-03-251977-03-25Duct device for air conditioner
PendingJPS53130840A
(en)