Patent ID: 9364082
Filing Date: 2016-06-14
CPC Classification: A47B,B01J,B01L,C12M,G01N,H02K

Claim Text:
1. A constant-temperature device comprises; thermostatic chamber having a closed space and walls surrounding said closed space; a rotating magnetic field generation means for giving a rotating field having a rotation center in a vertical axis direction from an underside of a floor face of a bottom portion of the walls to the closed space through the floor face; a base plate detachably screwed on the floor face through brackets in the closed space of the thermostatic chamber, being supported by support blocks each having a resin-made pad at a portion where the floor face comes in contact, said pad receiving a load from upper side, wherein the base plate has a bearing having a center of a rotating shaft at a position meeting the rotation center in the vertical axis direction, a specimen plate mounted specimen shelves each saving a container storing a specimen is connected to an upper side rotating shaft over the bearing, and a magnet plate having a plurality of driven magnets is connected to the rotating shaft on a lower side of the bearing, and the driven magnets are magnetically coupled with the rotating field transmitted through the walls of the thermostatic chamber to rotate the rotating shaft in accordance with the rotating field, and; ring-shaped seal packings each including a lip, provided to a top and a bottom of the bearing, wherein one of the seal packings is placed between the base plate and the specimen plate, and the driving magnets are placed between the magnet plate to isolate the bearing from the atmosphere of the closed space.