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:
Dec. 03, 1996
Filed:
Nov. 17, 1994
Hans Hafner, Yonkers, NY (US);
Timothy O'Toole, Yorktown Heights, NY (US);
Precision Valve Corporation, Yonkers, NY (US);
Abstract
A multi-layer gasket for providing a seal between a mounting cup and a container comprising a middle layer of rigid plastic material and inner and outer layers of softer plastic material. The middle layer supports the inner and outer layers, which provide sealing surfaces with the mounting cup and the container bead. A gasketed mounting cup comprising a panel, a skirt integral with and depending from the periphery of the panel, wherein the skirt is outwardly flared to form an annular channel for receiving a container bead that defines the container opening and a multi-layer gasket positioned in the channel portion of the mounting cup, which gasket comprises a middle layer of rigid plastic material, an inner layer of soft plastic material adjacent the channel of the mounting cup and an outer layer of soft plastic material for engaging the container bead. The middle layer is preferably high density polyethylene or polypropylene and the inner and outer layers are preferably linear low density polyethylene. A layer of thermally activated adhesive can be placed adjacent the inner layer.