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. 07, 1988
Filed:
Oct. 31, 1985
Applicant:
Inventor:
Edvin L Clausen, Tonder, DK;
Assignee:
Norsk Hydro a.s., Oslo, NO;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F28F / ;
U.S. Cl.
CPC ...
165173 ; 291574 ; 165176 ;
Abstract
A manifold, especially a supply or receiving tank in a heat exchanger, is provided as an extruded/drawn tube with an outwardly and longitudinally extending protrusion part. Fastening flanges with a size larger than the width of the protrusion part are an integral portion of the protrusion part. The shaped tube with protrusion part is extruded or drawn, and then the protrusion part is perforated to form a plurality of apertures which are transformed in one or more steps by cold deformation into the fastening flanges of desired diameter, shape and length.