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:
Apr. 22, 2003
Filed:
Jun. 14, 2001
Applicant:
Inventors:
William C. Stewart, Gladstone, OR (US);
Randall R. Thom, Tualatin, OR (US);
Paul C. John, Beaverton, OR (US);
Assignee:
Bio-Reaction Industries, LLC, Tualatin, OR (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12M 1/12 ; C12M 3/06 ; B01D 3/914 ;
U.S. Cl.
CPC ...
C12M 1/12 ; C12M 3/06 ; B01D 3/914 ;
Abstract
A cartridge for holding compost in a biofilter is substantially uniform in cross section perpendicular to the axis of the cartridge and has a sidewall formed with openings that are small enough to substantially retain the compost in the cartridge yet large enough to allow filaments of bacteria present in the compost to project through the openings. The cartridge is of cross-sectional form such that multiple cartridges can be placed side-by-side in an array with passages between each cartridge and adjacent cartridges.