Patent ID: 8709364

Claim:
A heat retaining device configured to retain a container containing a sample therein at a predetermined temperature, comprising: a supporting rod; a top plate mounted at an upper end of the supporting rod; a bottom plate mounted at a lower end of the supporting rod; a heat retaining body movable along the supporting rod; and a supporting spring provided between the heat retaining body and the bottom plate, wherein the heat retaining body includes a hole at an upper face thereof, the hole being configured to contain the container therein and having an inner face shaped corresponding to a shape of an outer face of the container, and a pressing force applied to the container contained in the hole of the heat retaining body compresses the supporting spring to move the heat retaining body downward along the supporting rod, and release of the pressing force moves the heat retaining body upward by an elastic force of the supporting spring until the heat retaining body comes into contact with the top plate.