Thermostatic mixer tap
First Claim
1. A thermostatic type mixer tap, comprising, a housing that includes a mixing chamber having an outlet, a hot water inlet conduit having an inlet end and an outlet portion, a cold water inlet conduit having an inlet end and an outlet portion, an outlet conduit having an inlet end portion and an outlet, and a bypass conduit having an inlet opening to the cold water conduit between the cold water conduit inlet end and the cold water outlet portion and an outlet, thermostatic controlled valve means for apportioning flow of hot water and cold water from the hot and cold water outlet portions to the mixing chamber, outlet valve means operable between a first condition blocking flow of water from both of the bypass conduit outlet to the outlet conduit inlet end portion and the mixing chamber outlet to the outlet conduit inlet end portion, a second condition blocking flow of water from the bypass conduit outlet to the outlet conduit inlet end portion and permitting flow of water from the mixing chamber outlet to the outlet conduit inlet end portion, and a third condition permitting the flow of water from the bypass conduit outlet to the outlet conduit inlet end portion and blocking the flow of water from the mixing chamber outlet to the outlet conduit inlet end portion, and a handle rotatably relative the housing and associated with the outlet valve means for selectively operating the outlet valve means to the desired one of the first, second and third conditions.
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Accused Products
Abstract
The invention relates to a thermostatic type of mixer tap having hot and cold water inlets and outlets for discharging water at an intermediate temperature controlled by a thermostatic valve unit. The mixer tap has a mixing chamber to which apportioned amounts of hot and cold water are admitted by the thermostatic valve unit and outlet valve for controlling the flow from the mixing chamber to the outlet. For drinking purposes there is provided a bypass conduit which extends from the cold water inlet to the outlet valve which bypasses the mixing chamber. The outlet valve is operable to selectively connect either the mixing chamber or the bypass conduit to the outlet as desired.
57 Citations
9 Claims
- 1. A thermostatic type mixer tap, comprising, a housing that includes a mixing chamber having an outlet, a hot water inlet conduit having an inlet end and an outlet portion, a cold water inlet conduit having an inlet end and an outlet portion, an outlet conduit having an inlet end portion and an outlet, and a bypass conduit having an inlet opening to the cold water conduit between the cold water conduit inlet end and the cold water outlet portion and an outlet, thermostatic controlled valve means for apportioning flow of hot water and cold water from the hot and cold water outlet portions to the mixing chamber, outlet valve means operable between a first condition blocking flow of water from both of the bypass conduit outlet to the outlet conduit inlet end portion and the mixing chamber outlet to the outlet conduit inlet end portion, a second condition blocking flow of water from the bypass conduit outlet to the outlet conduit inlet end portion and permitting flow of water from the mixing chamber outlet to the outlet conduit inlet end portion, and a third condition permitting the flow of water from the bypass conduit outlet to the outlet conduit inlet end portion and blocking the flow of water from the mixing chamber outlet to the outlet conduit inlet end portion, and a handle rotatably relative the housing and associated with the outlet valve means for selectively operating the outlet valve means to the desired one of the first, second and third conditions.
- 7. A thermostatic type mixer tap, comprising, a housing that includes a mixing chamber having an outlet, an inlet chamber having an outlet, a hot water inlet conduit having an inlet end and an outlet portion, a cold water inlet conduit having an inlet end and an outlet portion, an outlet conduit having an inlet opening to the inlet chamber and an outlet end, and a bypass conduit having an inlet opening to the cold water conduit between the cold water conduit inlet and outlet end, thermostatic controlled valve means for apportioning the flow of hot water and cold water from the respective hot and cold water outlet portions to the mixing chamber, outlet valve means mounted by the housing for rotation between a first position blocking flow of water from both the bypass conduit outlet end and the mixing chamber outlet to the inlet chamber, a second position blocking flow of water from the bypass conduit outlet end to the inlet chamber and permitting flow of water from the mixing chamber outlet to the inlet chamber, and a third position permitting the flow of water from the bypass conduit outlet end to the inlet chamber and blocking water flow from the mixing chamber outlet to the inlet chamber and handle means on the housing for selectively rotating the outlet valve means between it positions.
Specification