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:
Aug. 21, 2012
Filed:
Jun. 09, 2008
Laurence W. Bassett, Killingworth, CT (US);
William Contaxis, Iii, Milford, CT (US);
Karl J. Fritze, Hastings, MN (US);
Mahesh Z. Patel, Plantsville, CT (US);
Laurence W. Bassett, Killingworth, CT (US);
William Contaxis, III, Milford, CT (US);
Karl J. Fritze, Hastings, MN (US);
Mahesh Z. Patel, Plantsville, CT (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
A filter cartridge includes a one-piece housing having a port and a filtration element disposed in the housing. The filtration element is a coherent filter block that can be larger in cross dimension than the port. The filtration element can be a coherent filter block that generally conforms to the shape of the hollow interior, but is slightly smaller than the hollow interior so as to define a gap between the filtration element and the inner surface. One method for constructing a filter cartridge includes providing a housing having a hollow interior and at least one port, introducing a granular material into the hollow interior via the port, and transforming the granular material in the hollow material into a coherent filter block. Another method for constructing a filter cartridge includes providing a filtration element in the form of a coherent filter block, and overmolding a housing around the filtration element.