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:
Sep. 02, 1997
Filed:
Jun. 26, 1995
Albert Beier, Ratingen, DE;
Wolfgang Herrmann, Ratingen, DE;
BDAG Balcke-Durr Aktiengesellschaft, Ratingen, DE;
Abstract
In a method of manufacturing a plate heat exchanger individual plates are connected to pairs such that the individual plates are parallel to and spaced from one another by edge portions with a common edge. The pairs are combined to a plate stack such that the common edges are parallel. A sealing strip, having a slotted end face with parallel slots, is positioned at the end of the plate stack such that the common edges are received in the slots and the edge portions abut the slotted end face and such that the end of the plate stack projects slightly past the outer surface of the sealing strip perpendicular to the slotted end face. The sealing strip is welded to the common edges by using at least a portion of the material of the plate stack end projecting past the outer surface. The edge portions are welded to the outer surface of the sealing strip by using exclusively the material of the plate stack projecting past the outer surface. The welding heat is continuously dissipated by placing a shaped part, made of a material having good heat-conducting properties, onto the surface of the sealing strip opposite the outer surface.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile