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:
Sep. 23, 1997
Filed:
Mar. 22, 1994
Robert R Murray, Madbury, NH (US);
Stephen P Fraczek, Lee, NH (US);
Dale H Jackson, New Market, NH (US);
Heidelberger Druckmaschinen AG, Heidelberg, DE;
Abstract
A method of removing heat from a moving web includes providing a quantity of a liquid which has a temperature of vaporization below the surface temperature of the web; heating the liquid to a temperature slightly below the temperature of vaporization of the liquid; spraying the heated liquid onto the surface of the web; and vaporizing liquid from the surface of the web to cool the web. In a preferred embodiment, an electrically charged screen is disposed intermediate the sprayer and the web. The liquid passes through openings in the screen to form electrically charged droplets of liquid which move onto the surface of the web. An apparatus for removing heat from a moving web includes liquid supply means for providing a liquid having a temperature of vaporization below the surface temperature of the web; heater means for heating the liquid to a temperature slightly below its temperature of vaporization; and sprayer means for spraying the heated liquid onto the surface of the web.