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:
Feb. 16, 1988
Filed:
Feb. 24, 1987
Applicant:
Inventor:
Steven R Zohler, Manlius, NY (US);
Assignee:
Carrier Corporation, Syracuse, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23Q / ;
U.S. Cl.
CPC ...
2915 / ; 29407 ;
Abstract
A method of determining the average size of a plurality of pores on the external surface of an enhanced tube having subsurface channels connecting adjacent pores. A pressure measurement apparatus is positioned on a portion of the enhanced tube surface and regulated air supply pressure is blown into the pressure measurement apparatus whereby a portion of the air pressure escapes through the pores and subsurface channels. Accordingly, the difference between the supply pressure and the pressure lost across the pores and subsurface channels is a measurement of the pore size which correlates to the boiling heat transfer coefficient of the tube.