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:
Oct. 23, 2001
Filed:
Sep. 27, 2000
Edward Atkin, London, GB;
Roger Leonard Williams, Hertfordshire, GB;
Cannon Rubber Limited, A British Company, London, GB;
Abstract
A closure assembly for a drinking vessel comprising a lid (,) with a spout (,). A diaphragm valve (,) is mounted on a central spigot (,) of an insert which protrudes from the bottom of the spout (,) and has an enlarged head (,) which provides a sealing surface (,) which cooperates with a bead (,) around a central hole (,) in the diaphragm. The diaphragm (,) has an annular flap (,) at its periphery which normally closes a breather hole (,) in the lid (,) but opens when a user sucks on the spout (,) to allow air to enter container (,) to equalize the internal and external pressure when liquid flows past the diaphragm (,).