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:
Jul. 29, 1980
Filed:
Aug. 21, 1978
Lothar Pfalzer, Heidenheim, DE;
J. M. Voith GmbH, Heidenheim, DE;
Abstract
Method and apparatus for separating ink from pulped inked paper: a suspension of pulped paper and chemicals enters a cylindrical container tangentially near the container bottom and rotates around the interior of the container; the ink and chemicals form a foam that floats off the suspension of paper fibers; the suspension exits from the container tangentially near the container top; a funnel at the top of the container; a foam outlet near the axis of the container from the funnel; a vortex generator at the bottom of the container, which blows upwardly creating a vortex in the suspension; means disperse air in the suspension in the container inlet before the suspension enters the container through the container inlet; the dispersing means either comprises a rotor cooperating with a stator, or comprises deflector plates in the container inlet; air is supplied to the inlet at the dispersion means rotor or deflector plates; the deflector plates may be washed clean.