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:
Oct. 20, 1987
Filed:
Dec. 17, 1985
Applicant:
Inventor:
Stephen A Rowland, Montreal, CA;
Assignee:
Hymac Ltd., Quebec, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B02C / ;
U.S. Cl.
CPC ...
241 37 ; 162 28 ; 241 78 ; 241 791 ; 241163 ; 241247 ; 2412612 ; 241297 ;
Abstract
A paper pulp refiner for refining high consistency stock characterized by two virtually identical refining zones connected in series which have an interstage device to remove excess steam and whose axial loads can be varied independently thus producing two stage pump from a single refiner.