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. 12, 2009
Filed:
Dec. 09, 2003
Kjetil Naesje, Sandnes, NO;
Kjetil Naesje, Sandnes, NO;
SmartSeal AS, , NO;
Abstract
An underpressure-activated valve device for a drinking container (). The device consists of an outer membrane () and an inner membrane () that are placed at an axial distance from one another, and their peripheral attachment areas are pressure-sealingly interconnected, causing a reference pressure chamber () having at least one vent () to an ambient pressure Pto exist between the membranes (). One membrane () is fixedly connected to a flow pipe (), and the other membrane () is provided with a membrane opening () within which the pipe () is movably arranged. The membrane opening () is associated with a primary sealing body () for sealing against fluid flow via the pipe (), and with a secondary sealing body () for sealing between the chamber () and an internal pressure Pin the container (). Both sealing bodies () are placed in pressure-sealing contact with the pipe () when the valve device is in an inactive position of rest, while at least the primary sealing body () is placed in an open position when the valve device is in an active position.