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. 03, 2013
Filed:
Aug. 16, 2006
Karl K. Hoffman, Arlington Heights, IL (US);
Steve Kaganovich, Northbrook, IL (US);
Thomas J. Roberts, Bolingbrook, IL (US);
Karl K. Hoffman, Arlington Heights, IL (US);
Steve Kaganovich, Northbrook, IL (US);
Thomas J. Roberts, Bolingbrook, IL (US);
Plitek, L.L.C., Des Plaines, IL (US);
Abstract
A lubricant applicator unit for pressure relief valves for a system for applying pressure relief valves to packaging during a packaging process, including a vacuum applicator for temporarily separating layers of the valve when the lubricant is applied. A pressurized nozzle sprays or atomizes the lubricant into the valve opening. Graphite suspended in liquid silicone is used as the lubricant; it is recirculated in a reservoir to keep the graphite in suspension. Optical sensors check for valves before the entrance to, and after exit from, the vacuum applicator.