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:
Aug. 02, 1983
Filed:
Jul. 13, 1981
Applicant:
Inventor:
Giovanni Manfre, Vinovo, IT;
Assignee:
Centro Ricerche Fiat S.p.A., Orbassano, IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22B / ;
U.S. Cl.
CPC ...
266233 ; 266236 ; 222606 ; 164337 ; 164362 ;
Abstract
The device comprises a plurality of superimposed sectional plates each of which is provided with aligned holes defining a plurality of ducts lying in side-by-side relation, each of the ducts containing a plurality of helically twisted vanes which are angularly displaced with respect to one another at angles of substantially 90.degree..