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. 17, 2005
Filed:
Sep. 17, 2001
Douglas M. Grossman, Fairview Park, OH (US);
Gregory R. Fedor, Bay Village, OH (US);
William R. Wurst, Elyria, OH (US);
Danny J. Fayak, Wellington, OH (US);
Douglas M. Grossman, Fairview Park, OH (US);
Gregory R. Fedor, Bay Village, OH (US);
William R. Wurst, Elyria, OH (US);
Danny J. Fayak, Wellington, OH (US);
Q-Panel Lab Products Corporation, Westlake, OH (US);
Abstract
An accelerated weathering apparatus includes a test chamber (), a specimen supporting means (), a light source () powered by a power source controlled by a ballast, at least one chamber air temperature sensor (), a black panel temperature sensor (), and a multiple blower system and control means (). A first blower () draws and circulates outside or fresh air and as second blower () optionally draws recirculated air into an air mixing duct. The speeds of the fresh air and recirculated air blowers are independently regulated and controlled by a blower controller based on the chamber air temperature and black panel temperature, respectively. In addition, a humidifier () and humidity controller () regulates humidity within the system as required.