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:
Sep. 23, 1986
Applicant:
Inventor:
Patrick Cadars, Maurepas, FR;
Assignee:
Societe Anonyme Francaise du Ferodo, Paris, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F15D / ;
U.S. Cl.
CPC ...
138 38 ; 165177 ;
Abstract
A swirl-generating helical agitator for tubular heat-exchangers comprises a strip of material twisted into a helix and has a cross-section including opposed double inflections. The double inflections have lateral portions inclined at an angle of inclination with respect to and on either side of a central portion.