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.

Date of Patent:
Jul. 21, 2009

Filed:

Apr. 13, 2006
Applicants:

William Jason Mccune-sanders, Burlington, VT (US);

Theodore Guy Roberts, Richmond, VT (US);

Inventors:

William Jason McCune-Sanders, Burlington, VT (US);

Theodore Guy Roberts, Richmond, VT (US);

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 3/28 (2006.01); C02F 11/04 (2006.01); C12M 1/107 (2006.01);
U.S. Cl.
CPC ...
Abstract

A tubular plug flow digester system assembled from manufactured components, including a holding/heating tank () connected to a manifold () that feeds a single or multiple parallel injection pumps (). These pumps force feedstock though check valves () and into single or parallel digester hulls. This hulls are composed of manufactured parts including tapered end sections () and hull sections () that can be assembled onsite to a configuration that accommodates operational needs. Biogas produced by this digester is pressurized due to a liquid column created by an elevated effluent outlet (). Feedstock is inoculated with relevant microorganisms that promote the generation of methane-rich biogas. Inoculation members () positioned within the hulls shelter biofilms containing these microbes while allowing regions of the biofilm to slough or naturally release microbes into the flowing feedstock stream. Biogas is collected through a manifold () and its release is controlled by a regulator or a valve.


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