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:
Nov. 11, 1980

Filed:

Nov. 22, 1978
Applicant:
Inventors:

Dennis L Hawkes, Mid-Glamorgan, GB;

Rex Horton, Mid-Glamorgan, GB;

David A Stafford, Cardiff, GB;

Assignee:

Hamworthy Engineering Limited, Fleets Corner, GB;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210 92 ; 210198 ; 210218 ; 210258 ; 2105 / ;
Abstract

An apparatus for the anaerobic digestion of natural organic waste comprises a feed tank, a digester and an outlet tank. There is further provided feed means which feeds waste to be digested from the feed tank to the digester at an adjustable continuous rate. A gas pump may be used to recirculate from the top of the digester through a diffuser to the bottom of the digester. A suitable gas pump comprises a container partially filled with liquid so as to provide a space above the liquid surface and within the container sealed by the liquid from the exterior of the container, pumping means being provided in the said space.


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