Patent ID: 8376241

Claim:
A device for mixing and regulating the output temperature of a hot liquid and a cold liquid in a shower, a bath or a faucet, said device comprising: a mixing chamber; a hot liquid entry port into said mixing chamber; a first cold liquid entry port into said mixing chamber; an outlet from said mixing chamber; an outlet passage in communication with said outlet of said mixing chamber; a movable distributing member and a stationary distributing member, the movable distributing member being operable by a single lever to contact proportions of hot and cold liquid introduced to said hot liquid entry port and said first cold liquid entry port; flow control means within said mixing chamber for simultaneously altering the proportions of hot and cold liquids admitted through said hot liquid entry port and said first cold liquid entry port into said mixing chamber at any rate of combined output flow; a temperature sensing device adapted to sense the temperature of the output of the mixed liquids from the mixing chamber for controlling the flow control means so that the output temperature at all output flow rates from the mixing chamber does not exceed a selected maximum temperature; and a second cold liquid entry port in direct fluid communication with the outlet passage of the device downstream from where the temperature of the output flow from the mixing chamber is sensed, movement of the movable distributing member by the single lever further controlling the proportion of cold liquid introduced to said second cold liquid entry port to reduce the output temperature of the output flow from the mixing chamber to below the selected maximum temperature.