WATER THERAPY SAFETY CONTROLS

摘要

A first form of water therapy safety control to discontinue the flow of liquid to a therapy device responsive to increase in temperature of the liquid over a predetermined limit has a receptacle with a strut at a mid-depth location. A thermally actuated bellows operator is mounted on the strut and carries a rod with a closure which is placed in shut-off position by expansion of the bellows. The receptacle has a member adapted to open upon increase of pressure therewithin; In a second form of the invention, a receptacle has liquid inlet and outlet openings, the outlet being provided with a thermal operator which closes the outlet in response to increased temperature of the liquid past a predetermined limit. A normally closed discharge opening has a spring biased closure which opens responsive to pressurization of the receptacle upon closing of the outlet.