Portable cooling apparatus
Temperature-controlled electric heating device for heating instillation or transfusion liquids
Temperature control fluid circulating system
Apparatus for heating or cooling fluids
Thermoelectric cooling device and gas analyzer
Liquid-circulating thermal therapy system
Thermoelectric chiller and automatic syringe
ApplicationNo. 495406 filed on 03/19/1990
US Classes:607/105, Internally applied62/3.2, Thermoelectric; e.g., peltier effect62/3.5, Made with flexible heat exchanger material; e.g., blanket, wearing apparel, etc.219/490Automatic regulating or control means
ExaminersPrimary: Coven, Edward M.
Assistant: Harrison, Jessica J.
Attorney, Agent or Firm
Foreign Patent References
International ClassesA61F 007/00
AbstractAn improved temperature control fluid circulating system for automatically cooling a temperature control fluid in a thermal blanket with a thermoelectric cooling device having a cold side and a hot side when powered by electricity wherein the temperature control fluid is cooled by the cold side of the cooling device and pumped to, through, and from the blanket through first and second conduits. The system includes a device for powering the cooling device with pulse width modulated electrical signals; a device for sensing the temperature of fluid flowing within each of the conduits; a device coupled to the sensing device for calculating from the sensed temperatures an indication of the temperature of the fluid flowing within the blanket; and a device associated with the powering device for modifiying the temperature of the fluid by controlling the pulse width modulation of the power supplied to the thermoelectric cooling device.