Patent ID: 9022223
Filing Date: 2015-05-05
Classification: B01D,C02F

Abstract:
1. A water filtration system, comprising: a substantially hollow water reservoir having a substantially impermeable wall, an open top, and an open bottom; an entry port leading from an environment external to said water reservoir for supplying a fluid into an interior of said water reservoir; a cylindrical piston apparatus at least partially disposed within said water reservoir through said open top of said water reservoir, said piston apparatus having a proximal end and a distal end; a first plurality of threads disposed at least partially along an extent of said piston apparatus and threadably engaging a second plurality of threads that allows said piston apparatus to move in a proximal-distal direction; a substantially hollow sleeve attached to said distal end of said piston apparatus and extending distally from said piston apparatus, wherein said sleeve moves simultaneously with said piston apparatus in said proximal-distal direction; said sleeve having an open distal end; a water filter positioned along said open bottom of said water reservoir, said sleeve having a diameter or width that is larger than a diameter or width of said water filter, such that as said piston apparatus and said sleeve move distally, said water filter enters an interior of said sleeve through said open distal end of said sleeve a cleaning mechanism disposed along an inner extent of said sleeve, such that said cleaning mechanism can brush or scrape an outer extent of said water filter when said sleeve travels distally down said outer extent of said water filter, wherein said cleaning mechanism and said water filter have a male-female relationship, where said cleaning mechanism is the female of said relationship and said water filter is the male of said relationship; an exit port extending from and in fluid communication with said water filter, said exit port leading to an environment external to said water filtration system, wherein pressure on said fluid can be increased or decreased by engaging said first plurality of threads and said second plurality of threads, such that an increase of said pressure on said fluid drives said fluid distally through said water filter.