Patent ID: 8845890
Filing Date: 2014-09-30
Classification: B01D,B62D,F15B,Y10T

Abstract:
1. A hydraulic fluid reservoir for filtering hydraulic fluid, the hydraulic fluid reservoir including: a flat baffle disk secured to an inner wall of the reservoir and dividing said reservoir into a top portion having an inlet, and a bottom portion having an outlet, said baffle disk having a central fluid port and a plurality of peripheral openings; a cylindrical filter disposed within said bottom portion, the cylindrical filter having a cylindrical filter element surrounding a central aperture, said central aperture extending directly from the central fluid port to the outlet, a membrane, dissolvable by hydraulic fluid, fixed into said central fluid port to completely block said central fluid port; wherein hydraulic fluid initially flows on a temporary flow path from the inlet into the top portion of the hydraulic fluid reservoir, through said peripheral openings into the bottom portion, then through said cylindrical filter element into the central aperture and out through the outlet; after a predetermined period hydraulic fluid dissolves the membrane and hydraulic fluid may flow on a permanent flow path from the inlet directly through the central fluid port into the central aperture and through the outlet, bypassing the filter element.