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Title:
AIR FEEDING DEVICE
Document Type and Number:
Japanese Patent JPH10253138
Kind Code:
A
Abstract:

To readily and economically manufacture lightweighted housings by bending two opposite ends of a band-like housing equipped with a fan in an arcuate shape toward an outlet and connecting two longitudinal side peripheries of the housing with two side walls which are arranged in parallel with each other by means of foldable joints.

A housing 10 of an air makeup device which is suspended from a ceiling of a clean room comprises two vertical side walls 11, 11 which are arranged in parallel with each other and a band-like peripheral wall 13 which forms an upper portion of the housing 10. The side wall 11 has a substantially semi-elliptical shape and have central top portions thereof flattened and both ends thereof bent in an arcuate shape toward the bottom of the housing. The band-like peripheral wall 13 has two parallel longitudinal side peripheries thereof connected with the longitudinal peripheries of the top portion of the side walls 11, 11 in a sealed manner by means of foldable joints 14. A fan 16 made of a radial fan type fan is disposed at the central portion of the band-like peripheral wall 13. Air sucked from above with an actuation of the fan 16 is blown off laterally and radially by way of a hood-type muffler 18.


Inventors:
DONEIT WOLFGANG
Application Number:
JP3479498A
Publication Date:
September 25, 1998
Filing Date:
February 17, 1998
Export Citation:
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Assignee:
GEBHARDT VENTILATOREN
International Classes:
F24F7/06; F24F3/16; F24F7/10; F24F13/06; F24F13/24; F24F13/28; (IPC1-7): F24F13/06; F24F7/06; F24F7/10
Attorney, Agent or Firm:
Adachi Tsutomu



 
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