Anticorrosion ball cock fluid flow control assembly

Claim 2

In a ball cock for controlling the flow of water into and the water level within a water tank, the combination of: a unitary water flow unit including a water inlet portion and a water outlet portion and at least a major part of a valve lower housing portion, said water outlet portion telescoping said water inlet portion and forming an annular water outlet chamber therebetween opening into said valve lower housing portion, said valve lower housing poRtion being formed as an integral extension of said water outlet portion, said water inlet portion opening in direction of water flow into said valve lower housing portion and having an end at said valve lower housing portion forming an annular valve seat, water outlet opening means through said water outlet portion communicating between said water outlet chamber and an interior of said tank; valve means actionable between open and closed positions including said valve lower housing portion and an upper housing portion assembled enclosing a sealing member mounted movable against and away from said annular valve seat at said water inlet portion end sealing water flow between said water inlet portion and said water outlet chamber in said valveclosed position and permitting said water flow in said valve-open position, said valve means being operably connected to control means for actuating said valve means between said open and closed positions; and an annular unitary filtering member positioned in said outlet chamber surrounding said water inlet member forming an inner part of said outlet chamber as a filtering chamber around said water inlet portion and segregated from an outer part of said outlet chamber, said filtering chamber opening upwardly into said lower housing portion outwardly of said valve seat and being closed spaced downwardly by said filtering member and communicating outwardly with said outlet chamber outer part through a series of spaced slots formed in said filtering member, said filtering member having an upper outer annular end part at said valve lower housing portion spaced outwardly of said valve seat at said water inlet portion end and outwardly bordering said filtering chamber upward opening clamping an outer annular part of said valve means sealing member and blocking the flow of water outwardly of said valve seat into said outlet chamber other than through said filtering chamber upward opening and through said filtering chamber.

Claim 3

A ball cock as defined in claim 1 in which said water flow unit is a unitary molded plastic assembly forming said water inlet portion and said water outlet portion and said major part of said valve lower housing portion; and in which said annular unitary filtering member is an annular plastic filtering member.

Claim 4

In a ball cock for controlling the flow of water and the water level within a water tank, the combination of: a unitary water flow director including a tubular water outlet portion having at least a part of a valve lower housing portion as an end extension thereof and telescoping a tubular water inlet portion having an end opening in a direction of water flow into said valve lower housing portion, said water inlet portion end forming an annular valve seat thereover, said water inlet and outlet portions forming a water outlet chamber therebetween outwardly of said water inlet portion opening in a reverse direction from said water flow direction into said valve lower housing portion and opening in said water flow direction into a tank interior spaced from said valve lower housing portion; valve means actionable between open and closed positions including said valve lower housing portion and an upper housing portion assembled enclosing a sealing member mounted movable against and away from said annular valve seat at said water inlet portion end sealing water flow between said water inlet portion and permitting said water flow in said valve-open position, said valve means being operably connected to control means for actuating said valve means between said open and closed positions; and an annular unitary filtering member positioned in said water outlet chamber telescoping said water inlet portion and telescoped by said water outlet portion forming an inner part of said outlet chamber as an annular filtering chamber surrounding and against said water inlet member segregated from an outer part of said outlet chamber and opening in said reverse water flow direction into said valve lower housing portion outwArdly adjacent said valve seat, said filtering chamber being formed by said filtering member communicating solely from said valve lower housing portion outwardly with said outlet chamber outer part through a series of spaced slots formed in said filtering member, said filtering member terminating in said reverse water flow direction at said valve lower housing portion in an annular end surface spaced outwardly of said water inlet portion valve seat clamping an annular zone of said valve means sealing member, said filtering member annular end surface outwardly abutting said water outlet portion and blocking the flow of water outwardly of said valve seat into said outlet chamber other than through said filtering chamber.

Claim 5

In a ball cock for controlling the flow of water and the water level within a water tank, the combination of: a unitary water flow director including a tubular water outlet portion having at least a part of a valve lower housing portion as an end extension thereof and telescoping a tubular water inlet portion having an end opening in a direction of water flow into said valve lower housing portion, said water inlet portion end forming an annular valve seat thereover, said water inlet and outlet portions forming a water outlet chamber therebetween outwardly of said water inlet portion opening in a reverse direction from said water flow direction into said valve lower housing portion and opening in said water flow direction into a tank interior spaced from said valve lower housing portion; valve means actionable between open and closed positions including said valve lower housing portion and an upper housing portion assembled enclosing a sealing member mounted movable against and away from said annular valve seat at said water inlet portion end sealing water flow between said water inlet portion and permitting said water flow in said valve-open position, said valve means being operably connected to control means for actuating said valve means between said open and closed positions; and an annular unitary filtering member positioned in said water outlet chamber telescoping said water inlet portion and telescoped by said water outlet portion forming an inner part of said outlet chamber as an annular filtering chamber surrounding and against said water inlet member segregated from an outer part of said outlet chamber and opening in said reverse water flow direction into said valve lower housing portion outwArdly adjacent said valve seat, said filtering chamber being formed by said filtering member communicating solely from said valve lower housing portion outwardly with said outlet chamber outer part through a series of spaced slots formed in said filtering member, said filtering member terminating in said reverse water flow direction at said valve lower housing portion in an annular end surface spaced outwardly of said water inlet portion valve seat clamping an annular zone of said valve means sealing member, said filtering member annular end surface outwardly abutting said water outlet portion and blocking the flow of water outwardly of said valve seat into said outlet chamber other than through said filtering chamber.

Claim 6

A ball cock as defined in claim 3 in which said water flow director is a molded plastic integral assembly; in which said upper housing portion of said valve means is a molded plastic member; in which said valve means sealing member is a resilient material sealing member; and in which said annular unitary filtering member is an annular molded plastic filtering member member.