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:
Nov. 22, 1994
Filed:
Sep. 20, 1991
Applicant:
Inventor:
Stephan Geyer, Allendorf, DE;
Assignee:
Passavant-Werke AG, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F / ;
U.S. Cl.
CPC ...
210199 ; 210752 ;
Abstract
When adding flocculant to a sludge suspension, which will be dewatered, within a pressure pipe between a feed pump and a dewatering equipment, the distance between the dosing point and the inlet of the dewatering equipment will be modified during operation, e.g. by displacing a lance carrying a dosing head within the sludge pipe or by selectively operating a number of dosing points being positioned at different distances to the dewatering equipment. In this way it is possible to adjust most optimally the retention time being available for the formation and consolidation of floc particles with regard to the present operation conditions and the type of added flocculant.