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. 31, 2012
Filed:
Jul. 01, 2008
Jason D. Gilmour, Huntington Beach, CA (US);
Jason D. Gilmour, Huntington Beach, CA (US);
SpinTek Filtration, Inc., Los Alamitos, CA (US);
Abstract
A water filtration system (, FIG.) wherein pressured feed water (water with impurities to be filtered out) passes downstream from an upstream end of a passage () through a filter arrangement () in the passage, to a filtrate storage region (), during filtrate production. Pressured water, such as at 50 psi (3 bars) from a tap water source (), provides the pressured feed water during filtrate production, and also pressurizes the filtrate during backflushing. A filtrate pressurizing apparatus () includes a movable member or piston () that lies in a chamber (), and that has a feed side () that is pressurized by tap water during a backflush and that has a filtrate side () that presses against filtrate, the feed side having a larger diameter (D) than the filtrate side (D) to produce an increased pressure during backflushing.