Patent ID: 6238315
Filing Date: 2001-05-29
Classification: F16D,F16H,Y10T

Abstract:
A check valve system through which pressurized hydraulic fluid selectively flows, said check valve system comprising:at least one disk-shaped seal plate comprising at least one seal plate aperture passing therethrough;a disk-shaped spring plate comprising at least one spring plate aperture and a cantilevered spring arm disposed within said aperture, said spring plate being disposed adjacent to said seal plate;at least one disk-shaped port plate comprising at least one port plate aperture passing therethrough, said port plate being disposed adjacent to said spring plate such that said spring arm is aligned with said port plate aperture; andat least one limiter plate limiting movement of said spring arm,wherein said seal plate and said spring plate define a check valve, and said port plate and said limiter plate define operating parameters for said check valve.