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. 14, 2000
Filed:
Jul. 15, 1998
Applicant:
Inventors:
Jerome Friedel, Blandy les Tours, FR;
Daniel Jean Marey, Soisy sur Seine, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D / ; F28F / ;
U.S. Cl.
CPC ...
165168 ; 415116 ; 4151732 ; 415175 ; 415176 ; 415178 ;
Abstract
A heating or cooling apparatus for a turbo-machine housing collar that adjusts the diameter of the housing using chambers that are arcs of a circle through which gas is blown onto the ribs of the housing. The gas circulates in a counterflow direction or in alternate directions for adjacent chambers in order to equalize the blowing conditions at every paint of the ribs.