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:
May. 04, 1993
Filed:
Mar. 10, 1992
Applicant:
Inventors:
Luc DeLons, Rueil Malmaison, FR;
Joseph Andrieu, Velizy, FR;
Patrick Bele, Saint Germain En Laye, FR;
Assignee:
DeGremont, Rueil Malmaison, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ; C02F / ;
U.S. Cl.
CPC ...
210396 ; 210401 ; 210408 ; 100118 ;
Abstract
Apparatus for dehydrating sludge originating from water purification stations, comprising a draining grid part positioned above a pressing-belt filter part, and a device for washing the grid wherein the device is positioned above the grid, so as to limit the drop height of the flocculated sludge between the grid and the belt, thus avoiding deflocculation of the sludge between the thickening stage and the dehydration stage, the washing of the grid being performed concurrently with the movement of the sludge on the grid.