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. 16, 2000
Filed:
Mar. 13, 1998
John E Knudtson, Granger, IN (US);
Utilimaster Corporation, Wakarusa, IN (US);
Abstract
A ventilation system for a vehicle to pressurize the cargo area of the vehicle including a duct mounted adjacent the top wall of the vehicle cab with a first end in flow communication with an opening in the front wall of the vehicle, and a second end in flow communication with the cargo area of the vehicle. An adjustable damper is disposed within the duct adjacent the first end. The damper is adjustable between a closed position and an opened position to adjust the amount of air flow through the duct. The center portion of the duct includes a plurality of apertures to direct a portion of the air flowing through the duct into the cab. The lower wall of the center portion includes a plurality of diagonal channels to collect water and direct it to a drain adjacent the first end of the duct. A fan is mounted within the duct to provide air flow into the cargo area when the vehicle is not moving. A filter is also mounted within the duct to prevent dust and particulate matter from entering the cargo area.