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:
Nov. 27, 2012
Filed:
Nov. 11, 2008
David J. Gaus, Saginaw, MI (US);
David J. Gaus, Saginaw, MI (US);
AptarGroup, Inc., Crystal Lake, IL (US);
Abstract
A port closure system () including a port structure (), and a valve (). The port structure () includes a port () for establishing communication between an exterior environment () and interior volume () that can receive a fluent substance. The valve () includes a flexible, resilient, self-closing, slit-type valve head () with an orifice that is normally closed in an unconstrained condition. The port () has a laterally inwardly facing engaging surface () and the valve has a laterally outwardly facing peripheral surface () that is compressed laterally inwardly by engagement with the surface () to increase the resistance of the normally closed orifice to opening when the head () is subjected to a pressure differential.