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:
Apr. 13, 2010
Filed:
Mar. 21, 2008
Applicants:
Michael J. Kurth, Howards Grove, WI (US);
Terry P. Zerger, Howards Grove, WI (US);
Paul W. Eserkaln, Sheboygan, WI (US);
Inventors:
Michael J. Kurth, Howards Grove, WI (US);
Terry P. Zerger, Howards Grove, WI (US);
Paul W. Eserkaln, Sheboygan, WI (US);
Assignee:
Pentair Filtration, Inc., Sheboygan, WI (US);
Primary Examiner:
Int. Cl.
CPC ...
B01D 27/08 (2006.01); B01D 35/30 (2006.01);
U.S. Cl.
CPC ...
Abstract
A modular filter system using replaceable filter cartridges includes matching adaptor rings in the filter head and on the filter cartridge placed at selected circumferential positions to ensure proper cartridge fit and to provide a proprietary cartridge construction for selected users. The adaptor rings operate only to control cartridge to filter head fit and are not used to drive the rotary valve spindle.