The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 28, 2003
Filed:
Jun. 22, 2001
Kenji Kobayashi, Yamaguchi, JP;
Tomoyuki Shibuya, Yamaguchi, JP;
Koji Okada, Chiba, JP;
Takaaki Matsubara, Yamaguchi, JP;
Haruo Hirakawa, Yamaguchi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A ventilating device capable of being easily assembled and disassembled, wherein, after setting a blower for exhaust and a blower for air supply on an electric motor ( ), the electric motor is installed in an exhaust flow path ( ) of a silencer box ( ). The inside of the silencer box ( ) is divided by partitions into the exhaust flow paths ( ) and air supply flow paths ( ) and sound absorbing material is installed on the wall surfaces of the air flow paths ( and ). Each blower aligns with each of the air flow paths when an air blow device is inserted, and an opening into which the air blow device is inserted is covered by a cover ( ). The blowers can be assembled and disassembled from the side and the air blow devices can be inserted from the upper side.