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. 28, 2005
Filed:
Sep. 08, 2003
Yet Chan, Hong Kong, HK;
Yet Chan, Hong Kong, HK;
Foster Wheeler Corporation, Wanchai, HK;
Abstract
A valve assembly for a pressurized fluid vessel such as a propane tank has a housing defining a main fluid passageway therebetween with a valve seat () defined in the main passageway, a main valve member () movable against the valve seat () to block the passageway, an insert () defining an internal chamber within the interior of the housing within which the main valve member () is disposed, a secondary fluid flow passageway through the insert (), through a conduit () connected to the main valve body, and through openings () in an end of the conduit () facing second ports opening into the vessel, and a secondary valve member () movable to block the openings () under the action of a float () on a predetermined fluid level being reached, thereby exposing the main valve member () to a pressure differential to close the valve.