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:
Nov. 09, 1999
Filed:
Jun. 13, 1997
Applicant:
Inventors:
Wayne S Counterman, Wellsville, NY (US);
Gary Foster Brown, Andover, NY (US);
Tadek Casimir Brzytwa, Wellsville, NY (US);
Michael Mimg-Ming Chen, Wellsville, NY (US);
Scott Frederick Harting, Wellsville, NY (US);
James David Seebald, Wellsville, NY (US);
Assignee:
ABB Air Preheater, Inc., Wellsville, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23P / ;
U.S. Cl.
CPC ...
29890034 ; 165 10 ; 165-8 ; 29890039 ; 72197 ;
Abstract
Heat transfer elements for rotary regenerative heat exchangers are formed with spacing ridges or notches having flow-disrupting indentations in the peaks of the notches formed at selected intervals to project into the flow channels. These projections interrupt the boundary layer and cause turbulence and mixing to enhance the heat transfer. Various methods of forming the indentations are disclosed.