Refrigeration – Using electrical or magnetic effect – Thermoelectric; e.g. – peltier effect
Reexamination Certificate
2000-03-22
2001-11-06
Doerrler, William (Department: 3744)
Refrigeration
Using electrical or magnetic effect
Thermoelectric; e.g., peltier effect
C062S003500, C062S003700, C062S259300
Reexamination Certificate
active
06311497
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates, in general, to fomenting devices and, more particularly, to a device for cold and warm fomentations, performing a cold fomentation as well as a warm fomentation, being capable of controlling the temperature of a fomentation head over a wide range, being inexpensively manufactured and being of a small size.
2. Description of the Prior Art
As well known to those skilled in the art, for a cold or warm fomentation, there is performed a fomenting method wherein a wet towel is applied to the superficial parts of the body after a towel is wet with chilled water or hot water. However, this method causes excessive inconvenience to a practitioner.
On the other hand, there is proposed a fomenting device wherein heat is generated by means of a metal heater, a pyrogen or a far infrared radiation heater, and the generated heat is applied to the superficial parts of the body However, this device may not be used for a cold fomentation, but may be used for a warm fomentation because the device generates only heat.
SUMMARY OF THE INVENTION
Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a device for cold and warm fomentations, performing a cold fomentation as well as a warm fomentation, being capable of controlling the temperature of a fomentation head over a wide range, being inexpensively manufactured and being of a small size.
In order to accomplish the above object, the present invention provides a device for cold and warm fomentations, comprising: a fomentation head consisting of a semiconductor heat exchange element, a coolant tank mounted on the top surface of the heat exchange element, a heat conducting plate fixed to the bottom surface of the heat exchange element, and a far infrared radiation ceramic or metal-coated layer positioned on the bottom surface of the heat conducting plate; and a heat exchange element control unit consisting of a direct current electric source supplying electric power to the heat exchange element, a power polarity converting switch circuit connected to the heat exchange element in parallel with the electric source, a program circuit connected to the power polarity converting switch circuit at its output terminal, the program circuit outputting control program signals which manually or automatically convert a polarity of the electric power according to predetermined time intervals, a rush current restricting element connected to the heat exchange element, a power on-off relay switch connected to the program circuit at its input terminal and connected to the power polarity converting switch circuit and the rush current restricting element, and a first control circuit and a second control circuit connected to the heat exchange element at their input terminals and to the power on-off relay switch at their output terminals, the first control circuit outputting a switching signal at a predetermined maximum plus degree temperature, while the second control circuit outputs a switching signal at a predetermined maximum, minus degree temperature.
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Doerrler William
McCormick Paulding & Huber LLP
Shulman Mark
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