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:
May. 27, 1986
Filed:
Jun. 08, 1984
Rodger E Whipple, Neenah, WI (US);
Richard H Curtis, Gorham, ME (US);
Overly, Inc., Neenah, WI (US);
Abstract
A web dryer for use in the graphic arts industry or the like includes a dryer housing through which a printed web travels and which contains a plurality of nozzles, an air inlet, an air exhaust and a source of heat. The desired ventilation rate for purposes of maintaining the interior dryer environment at a required low percentage of the Lower Flammable Limit is designed to be dependent on the measured or calculated rate of ink application to the web. The ink application rate and information regarding the actual exhaust flow or ventilation rate is fed to a ventilation rate control and the exhaust flow or ventilation rate is then varied in response thereto, as by controlling a variable speed exhaust blower. At the same time, make-up air is provided to the dryer interior, preferably at a point remote from the exhaust discharge duct so that it thoroughly mixes with recirculating air within the dryer to reduce condensation problems. The make-up air can be supplied from a number of sources, as illustrated in the various embodiments disclosed.