Patent ID: 8695599
Filing Date: 2014-04-15
Classification: A61M

Abstract:
1. A flow control valve comprising: a housing, said housing having an inlet, and said housing having an outlet; an intermediate cone-like wall in said housing, said intermediate cone wall disposed between said inlet and said outlet, a first side of said intermediate wall forming a wall support surface, said intermediate cone wall's first side having a contact support surface; said intermediate wall having a thickness, and said intermediate wall having a second side disposed opposite to said first side of said intermediate wall and situated at across said thickness of said intermediate wall; at least one through-hole in said intermediate cone wall, said at least one through-hole passing through said thickness of said intermediate wall from said first side to said second side of said intermediate wall; said intermediate cone-like wall having a base, said thickness of said intermediate wall being connected to said housing at said base so that said intermediate cone-like wall spans a flow passage in said housing; a rotary slide valve disposed in said housing; said rotary slide valve including a cylindrical, axially-extending shaft, said cylindrical, axially-extending shaft having a first end surface inside said housing and proximate to said intermediate cone wall; a flow-sealing hopper, said hopper having a hopper sealing surface configured to cooperate with said intermediate cone wall's support surface to control fluid flow through said at least one through-hole, said sealing hopper connected to said shaft; a ball, said ball seated in a recess configured to support it between said first end surface and said contact support surface to produce a point-like locus of bearing contact between said shaft and said contact support surface of said intermediate cone wall.