Patent ID: 6133020
Filing Date: 2000-10-17
Classification: C12M,C12Q

Abstract:
Apparatus for determining the number of microorganisms in air, with a settlement device (1) for the settlement of microorganisms, which has a lower part (3) and a cover (5), a nutrient medium (4) being located in an interior of the settlement device (1), with an arrangement (10) for actuating the cover (5) of the settlement device (1), with two reception stations (41, 42) for the settlement device (1), whereby the actuating arrangement (10) is designed in such a way that the cover (5) can be moved in a controlled way between the two reception stations (41, 42), and whereby the actuating arrangement (10) comprises a device (20) for handling the cover (5) and a device (80) for controlling the movements of the cover (5), wherein the handling device (20) comprises a shaft (21) which runs virtually vertically and which is arranged between the two reception stations (41, 42), wherein carrying means (25) for the cover (5) are engaged to a first end of the shaft (21), and means for the mechanical movement of the shaft (21) are engaged to a second end of the shaft (21),wherein the movement means comprise a motor (57) capable of being controlled by the control device (80), the movement means having, a control disk (55) which is driven by the motor (57), the control disk (55) having control cams (71, 72) and the movement means having a lever (60) and a rack (65) which are engaged to the control cams (71, 72) on the control disk (55) and to the shaft (21).