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. 28, 1994
Filed:
Apr. 21, 1993
Applicant:
Inventor:
Anthony W Abraham, Arlington, TX (US);
Assignee:
Wynn's Climate Systems, Inc., Ft. Worth, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F28F / ;
U.S. Cl.
CPC ...
165174 ; 165185 ;
Abstract
A parallel flow heat exchanger has perforated webs within its tubes. The tubes are parallel to each other and extend between headers. Each tube has webs located within it which define flow passages. The webs are perforated along the length to communicate refrigerant flow in one passage with that of refrigerant flow in other passages. The flow tubes are extruded integrally. The perforations are formed by air jets mounted in the extrusion die cores.