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:
Sep. 28, 1999
Filed:
Sep. 09, 1998
Walter Richard Gallien, Raymond, NH (US);
Summit Packaging Systems, Inc., Manchester, NH (US);
Abstract
A valve assembly and mounting cup combination which comprises a mounting cup having an exterior, outwardly facing surface and an interior, inwardly facing surface, and a perimeter curl for attaching the mounting cup to a desired rim of a container. The mounting cup includes a pedestal portion with a conically-shaped top surface having a centrally located aperture formed therein and a gasket is disposed within the pedestal portion between an undersurface of the pedestal portion and a valve assembly. The valve assembly comprises a valve body, a valve stem with a base, and a spring. The assembly is disposed in and retained by the pedestal portion, via a conventional crimping process, with a product outlet carried by the valve stem and protruding through the aperture in the gasket and the central aperture. The spring biases the valve base against the gasket to form a seal therebetween. The conical shape of the top wall of the pedestal portion provides an enhanced clearance between and undersurface of the gasket and an adjacent surface of the base. This enhanced clearance allows the radial orifices, carried by the valve stem, to be located therebetween and have relatively large diameters. This, in turn, facilitates forming of the radial orifices in the valve stem during the initial molding process, instead of during a subsequent manufacturing step.