Sanitary water valve
AssigneeAmerican Standard Inc.
InventorKonrad Bergmann
Life of this patent
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Abstract
This invention concerns a sanitary water valve having a valve assembly, which includes a cylinder having a bore extending longitudinally therethrough and at least one water inlet orifice and a water outlet orifice formed in the cylinder wall; and a slot or opening, extending longitudinally over the length of the cylinder wall. The at least one water inlet orifice and water outlet orifice are formed on the cylinder and positioned the same longitudinal distance from one end thereof. A piston is positioned in the cylinder bore and is rotatably and longitudinally shiftable therein, the piston including a water mixing chamber in the form of a transverse slot or water passage, which is arranged and constructed to connect with at least one water inlet orifice and the water outlet orifice.
Claims31
A sanitary water valve comprising a stationary cylinder having at least one water inlet orifice, a rotatable and longitudinally shiftable piston positioned in said cylinder to control the flow of water through said at least one water inlet orifice from a closed to an opened position;
- said cylinder having a longitudinal extending continuous lengthwise slot and said piston and cylinder having mating surfaces, which form a watertight, mechanical seal between their mating surfaces without the necessity of using static seal means.
A sanitary water valve comprising:
- a stationary cylinder having a longitudinal bore therethrough and having a longitudinal slot extending along the length of the cylinder wall;
- said cylinder having at least one water inlet orifice and a water outlet orifice formed in its wall;
- a rotatable and longitudinally shiftable piston positioned in said longitudinal bore and having water passage means to control the flow of water to said water outlet orifice from said at least one water inlet orifice;
- said piston having a diameter slightly greater than the diameter of the cylinder bore;
- and
- said piston and said cylinder having mating surfaces so that when said oversized piston is inserted into said cylinder bore, said oversized piston expands the cylinder causing compressive radial forces to be exerted against said mating surfaces of said piston and said cylinder to form a watertight, mechanical seal without the necessity of using static seal means.
A valve assembly adapted to be operably coupled to a sanitary water valve, said valve assembly comprising;
- a cylinder having a longitudinal bore therethrough and having a longitudinal slot extending along the length of the cylinder wall;
- said cylinder having at least one water inlet orifice and a water outlet orifice formed in its wall;
- a rotatable and longitudinally shiftable piston positioned in said longitudinal bore and having water passage means to control the flow of water to said water outlet orifice from said at least one water inlet orifice;
- said piston having a diameter slightly greater than the diameter of the cylinder bore;
- and
- said piston and said cylinder having mating surfaces so that when said oversized piston is inserted into said cylinder bore, said oversized piston expands the cylinder causing compressive radial forces to be exerted against said mating surfaces of said piston and said cylinder to form a watertight, mechanical seal without the necessity of using static seal means.
Dependencies are inferred from the claim text.