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:
Mar. 04, 2014
Filed:
Apr. 30, 2007
Helen Gustafsson, Staffanstorp, SE;
Helen Gustafsson, Staffanstorp, SE;
Alfa Laval Corporate AB, Lund, SE;
Abstract
The invention relates to a heat exchanger plate, and a plate heat exchanger including a plurality of heat exchanger plates. Each heat exchanger plate include a heat transfer area, an edge area, that extends around and outside the heat transfer area, and a number of portholes that extend through the heat exchanger plate and are located inside and in the proximity of the edge area. The porthole is defined by a porthole edge and has a center. The porthole edge has a first edge portion, that faces the edge area, and a second edge portion that faces the heat transfer area. The first edge portion has a corrugation seen from the center of the porthole. The second edge portion has a substantially plane shape seen from the center of the porthole.