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. 31, 1989
Filed:
Jan. 09, 1989
Z Philip Saperstein, Lake Bluff, IL (US);
Modine Manufacturing Company, Racine, WI (US);
Abstract
Poor brazed joints in a heat exchange caused by improper venting during the brazing process are eliminated through the use of a baffle for disposition in a slot 32 in a tubular header 10, 12 which is formed of a plate-like metal piece having first and second peripheral sections 36, 40 of approximately the same extent. The first section 36 has a size at least as large as the outer dimension of the tubular header 10, 12 while the second section 40 has a size and shape approximately equal to a corresponding interior section of the tubular header 10, 12 and a notch 46 is disposed in the first section 36 and extends inwardly a distance 2t greater than the wall thickness t of the tubular header. The notch 46 provides a vent path during the brazing process which is subsequently filled by the capillary flow of molten braze metal 52 into the bottom 50 of the notch.