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:
Feb. 27, 2007
Filed:
Mar. 18, 2004
Paul Kremer, Walferdange, LU;
Jacques Schmit, Eppeldorf, LU;
Paul Kremer, Walferdange, LU;
Jacques Schmit, Eppeldorf, LU;
Luxembourg Patent Company, , LU;
Abstract
A tap for a gas or liquid cylinder is provided that comprises an inverted seat primary valve located in a main portion of a tap body and a secondary check valve spring biased into closed position and located below the lower end of a threaded section of a root end portion of the tap body. Both valves are actuated by an elongated stem extending from the main portion of the tap body into the root end portion. When the tap is fixed to a gas or liquid cylinder, the secondary check valve is located in the cylinder, thereby remaining operative when the tap body is sheared-off at a location where it extends out from a cylinder tap aperture.