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:
Dec. 04, 2001
Filed:
Aug. 02, 1999
Soren J. Hojsgaard, Hillerod, DK;
Kruger A/S, Soborg, DK;
Abstract
A waste treatment system comprises a first heat exchanger positioned before one or more reactors. The reactors discharge treated sludge to a second heat exchanger. The first and second heat exchangers share a heat transfer medium wherein the heat from the treated sludge is transferred to the incoming sludge. The treated sludge is cooled to reach an optimal temperature range before entry into a digester. The system also is adapted to allow a pipe cleaning device or “pig” to clean the heat exchangers by being forced through the heat exchangers by pressurized and pasteurized wastewater.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile