JPS5254255A - Bacteria-and-dust-protected sound-absorbing duct - Google Patents

Bacteria-and-dust-protected sound-absorbing duct

Info

Publication number
JPS5254255A
JPS5254255A JP50129910A JP12991075A JPS5254255A JP S5254255 A JPS5254255 A JP S5254255A JP 50129910 A JP50129910 A JP 50129910A JP 12991075 A JP12991075 A JP 12991075A JP S5254255 A JPS5254255 A JP S5254255A
Authority
JP
Japan
Prior art keywords
dust
sound
bacteria
absorbing duct
protected sound
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
JP50129910A
Other languages
Japanese (ja)
Inventor
Kinichiro Asami
Minoru Takahashi
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 Plant Construction Co Ltd
Hitachi Plant Technologies Ltd
Original Assignee
Hitachi Plant Construction Co Ltd
Hitachi Plant Technologies 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 Construction Co Ltd, Hitachi Plant Technologies Ltd filed Critical Hitachi Plant Construction Co Ltd
Priority to JP50129910A priority Critical patent/JPS5254255A/en
Publication of JPS5254255A publication Critical patent/JPS5254255A/en
Pending legal-status Critical Current

Links

Landscapes

  • Pipe Accessories (AREA)
  • Duct Arrangements (AREA)

Abstract

PURPOSE: To prevent production of dust from a sound-absorbing material and also to improve sound-absorbing capability by providing inner surface of an air duct with a sound-absorbing material coated with thermal-plastic resin film protected from becoming loose.
COPYRIGHT: (C)1977,JPO&Japio
JP50129910A 1975-10-30 1975-10-30 Bacteria-and-dust-protected sound-absorbing duct Pending JPS5254255A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50129910A JPS5254255A (en) 1975-10-30 1975-10-30 Bacteria-and-dust-protected sound-absorbing duct

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50129910A JPS5254255A (en) 1975-10-30 1975-10-30 Bacteria-and-dust-protected sound-absorbing duct

Publications (1)

Publication Number Publication Date
JPS5254255A true JPS5254255A (en) 1977-05-02

Family

ID=15021404

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50129910A Pending JPS5254255A (en) 1975-10-30 1975-10-30 Bacteria-and-dust-protected sound-absorbing duct

Country Status (1)

Country Link
JP (1) JPS5254255A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60152890U (en) * 1984-03-22 1985-10-11 東急建設株式会社 Duct silencer
JPH0728295U (en) * 1993-10-26 1995-05-23 松下電工株式会社 Drain pipe soundproof cover
US6971474B2 (en) * 2002-12-20 2005-12-06 Carcoustics Tech Center Gmbh Air guiding element, especially an air guiding channel for a motor vehicle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60152890U (en) * 1984-03-22 1985-10-11 東急建設株式会社 Duct silencer
JPH0728295U (en) * 1993-10-26 1995-05-23 松下電工株式会社 Drain pipe soundproof cover
US6971474B2 (en) * 2002-12-20 2005-12-06 Carcoustics Tech Center Gmbh Air guiding element, especially an air guiding channel for a motor vehicle

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