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:
Jun. 18, 2002
Filed:
Jun. 23, 2000
Allan Broom, Coquitlam, CA;
George Kutak-Petrik, Port Coquitlam, CA;
Voith Sulzer Papiertechnik Patent GmbH, Heidenheim, DE;
Abstract
Vacuum conveyor and process for transporting at least a portion of a material web in a web travel direction. The vacuum conveyor includes two pulleys, a suction box positioned between the two pulleys, and an endless conveyor belt arranged around the two pulleys to form a loop. The suction box is positioned within the loop and the loop includes a conveyor run adapted to contact and guide the material web and a return run moving in a direction opposite the conveyor run. The suction box includes a suction opening positioned adjacent the conveyor run to suction the material web onto the conveyor belt and an exhaust opening positioned adjacent the return run. A vacuum source is coupled to the exhaust opening through the return run. The process includes creating a suction air flow from the vacuum source to the suction box through the return run of the conveyor belt, suctioning the at least a portion of the material web onto a conveying run of an endless conveyor with a suction box having a suction opening positioned adjacent at least a portion of the conveying run, and moving the endless conveyor to transport the at least a portion of the material web.