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:
Jul. 01, 1997
Filed:
Mar. 28, 1995
Applicant:
Inventors:
Ken Hirate, Sagamihara, JP;
Kazumi Kaneko, Yokohama, JP;
Shinichiro Sato, Yokohama, JP;
Kazunori Watagami, Nagoya, JP;
Assignee:
Fujita Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12M / ; C12S / ;
U.S. Cl.
CPC ...
4352991 ; 435266 ; 4352891 ; 404 71 ; 553851 ;
Abstract
An apparatus for purifying contaminated air has an air inlet exposed to a road surface, an air outlet spaced from the road surface, a soil bed for being populated with microorganisms, the soil bed being disposed between the air inlet and the air outlet and allowing air to pass therethrough, a pipe interconnecting the soil bed and the air outlet, and embedded underground, and a fan for introducing air from the air inlet, passing the air through the soil bed, delivering the air from the soil bed through the pipe to the air outlet, and discharging the air from the air outlet.