Automatic temperature and humidity regulation – Thermostatic – Expanding solid
Reexamination Certificate
2004-01-26
2008-11-04
Jiang, Chen-Wen (Department: 3744)
Automatic temperature and humidity regulation
Thermostatic
Expanding solid
C236S09300A, C236S034500
Reexamination Certificate
active
07445161
ABSTRACT:
The object of the present invention is to obtain a thermostat device capable of improving the workability and assemblability, reducing costs, and downsizing the entire device with a minimum number of components. This thermostat device has a first valve disc22for opening and closing a first fluid passage3b, and a second valve disc23for opening and closing a second fluid passage3d, and constituted so as to open either the first fluid channel or second fluid channel and close the other by making the valve discs move integrally in conjunction with the operation of an operating member21in accordance with the temperature change of the fluid. The operating member has a case31which seals in one end side thereof a thermal expansion body32having a property of expanding and contracting in accordance with a temperature change, and retains a piston33from the opening of the other end side thereof in a freely reciprocable manner. The outward flange unit36provided to the opening on the other end side of the case is made to be the first valve disc.
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Jiang Chen-Wen
Nippon Thermostat Co., Ltd.
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
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