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:
Jul. 06, 1993
Filed:
Mar. 04, 1992
Ralph A Polasky, Ripon, WI (US);
Vue X Yang, Sheboygan, WI (US);
Ametek, Inc. Plymouth Products Division, Sheboygan, WI (US);
Abstract
A pour-through pitcher filter assembly includes a compact filter element including a thin annular disk of molded activated carbon and a peripheral annular seal element. The seal element allows the filter to be replaceably mounted in the lower end of a plastic reservoir, which reservoir is adapted to be supported in the top of a pitcher for receiving filtered water. The reservoir may be made by a blow molding process and includes an integral bellows member which is manually collapsible to pressurize the interior of the reservoir to initiate gravity flow through an initially dry filter element. The seal element utilizes a synthetic rubber material and is preferably insert molded around the carbon filter disk.