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:
Jan. 01, 2008
Filed:
Dec. 29, 2003
Carl-olof Palm, Turku, FI;
Carl-Olof Palm, Turku, FI;
Fractivator Oy, Tampere, FI;
Abstract
A method and apparatus for biological and/or chemical decomposition of waste containing organic matter. The method includes waste pretreatment in which waste is fragmented and homogenised in a pretreatment apparatus () operating on the principle of a multi-ring double action impact mill. The apparatus has either two rotors () or a rotor and stator disposed inside a housing (), which rotors and/or stator are equipped with blades having impact surfaces, and which form one or more rings (, . . . ) coaxial with the rotor. The waste is fed into the housing through the hub of rings formed by the blades, and travels by the effect of a rotor or rotors, to the outer ring of the ring () formed by the outermost blades, and further to the discharge opening (') at the outer ring.