JPH0522732Y2 - - Google Patents

Info

Publication number

JPH0522732Y2

JPH0522732Y2 JP17850586U JP17850586U JPH0522732Y2 JP H0522732 Y2 JPH0522732 Y2 JP H0522732Y2 JP 17850586 U JP17850586 U JP 17850586U JP 17850586 U JP17850586 U JP 17850586U JP H0522732 Y2 JPH0522732 Y2 JP H0522732Y2

Authority

JP

Japan

Prior art keywords

ventilation fan

mounting plate

duct

ceiling

opening

Prior art date

1986-11-20

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.)

Expired - Lifetime

Links

• Espacenet
• Global Dossier
• Discuss

• 238000009423 ventilation Methods 0.000 claims description 42
• 239000002184 metal Substances 0.000 claims description 19
• 238000009434 installation Methods 0.000 description 5
• 230000000694 effects Effects 0.000 description 3
• 238000005516 engineering process Methods 0.000 description 3
• 238000000034 method Methods 0.000 description 3
• 238000010276 construction Methods 0.000 description 1
• 230000008878 coupling Effects 0.000 description 1
• 238000010168 coupling process Methods 0.000 description 1
• 238000005859 coupling reaction Methods 0.000 description 1
• 238000012986 modification Methods 0.000 description 1
• 230000004048 modification Effects 0.000 description 1
• 230000002093 peripheral effect Effects 0.000 description 1
• 238000003466 welding Methods 0.000 description 1