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:
May. 11, 2010
Filed:
Jun. 17, 2008
Applicant:
Peter Antensteiner, Lewisburg, PA (US);
Inventor:
Peter Antensteiner, Lewisburg, PA (US);
Assignee:
Durametal Corporation, Tualatin, OR (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B02C 7/04 (2006.01); B02C 7/06 (2006.01); B02C 13/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
A special shape of bars on refining discs or plate segments of a rotating disc refiner is disclosed including a plurality of bars generally extending outwards towards the outer end of the disk across its surface, arranged in a single, two or more radial zones, the plurality of the bars within a zone being curved with the shape of a logarithmic spiral. Disc refiners including such refining discs are also disclosed.