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. 30, 1992
Filed:
Aug. 21, 1990
Timo Vuorinen, Tampere, FI;
Oy Tampella Ab, Tampere, FI;
Abstract
In a method and apparatus for removing impurities from paper pulp, the pulping space enclosed by a solid jacket is divided into a primary and a secondary space by means of a partition wall. Both the primary and the secondary space are provided with separate rotor units and perforated screen plates in connection with rotor units. The paper pulp to be purified is conducted into the primary space and a connection between the primary and secondary spaces is arranged within the partition wall which allows for continuous use of both spaces for removing impurities.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile