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. 31, 1981
Filed:
Mar. 24, 1980
Heinrich Opitz, Erlangen, DE;
Bernhard Montag, Forchheim, DE;
Siemens Aktiengesellschaft, Berlin and Munich, DE;
Abstract
Stationary heat transfer coefficient fields are made visible by applying a swelled photographic film (original wet film) in daylight to the article to be exposed to the flow. The wet film obtained after it is exposed to a gas flow and removed from the article, is squeezed onto an unexposed dry photographic film. The separated wet copy (latent image) is seeded with reactive gas (H.sub.2 S) to make the moisture profile visible, and is developed into a wet-copy photogram (black-and-white picture), the sharp contours of which (line equidensities, isohumids) can optionally be translated into colors, corresponding to the stationary mass transfer distribution, and with which definite heat transfer coefficients can thereby be correlated.