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:
Jun. 19, 1979
Filed:
Feb. 17, 1977
Gosta I Ingemarsson, Saffle, SE;
AB Kalle-Regulatorer, , SE;
Abstract
Method and apparatus for drying waste matter such as sludge accumulated in a sewage treatment facility. The sludge is mixed with flocculating chemicals and thoroughly stirred. The mixture is then allowed to drain for a predetermined time in a porous-bottomed basin. A porous web preferably of braided wire which is movable across the basin floor carries the drained sludge to a pressing facility which squeezes the sludge between a pair of linear squeezing plates. As the web leaves the basin it is joined by a second web capturing the sludge therebetween for delivery to the pressing facility. The sludge may be air-blown in the pressing facility to achieve further dryness. The common guiding roll about which the two webs merge also serves as an end wall for the aforementioned basin.