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.

Date of Patent:
Jul. 17, 1984

Filed:

Jun. 21, 1982
Applicant:
Inventors:

Helmut Thumm, Heidenheim, DE;

Theodor Bahr, Heidenheim, DE;

Herbert Ortner, Heidenheim, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B02C / ; B02C / ;
U.S. Cl.
CPC ...
241 4611 ; 162261 ; 241 4617 ;
Abstract

An apparatus for pulping paper into a pulp suspension is disclosed. A vertical container has an upper paper pulping zone and a lower pulp diluting and outlet zone beneath the pulping zone. A narrowed despecking slot communicates between the two zones. A rotor in the container circulates and breaks up the paper in the presence of the liquid in the pulping zone. Ribs on the rotor cooperate with stators in the container for defining the despecking slot. A pulp suspension dilution water inlet communicates into the dilution zone. The outlet from the container also communicates from the dilution zone. A screen protects the outlet from the dilution zone against exit of large particles therethrough and vanes on the rotor clean the screen.


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