Patent ID: 6425296
Filing Date: 2002-07-30
Classification: B01L,G01N

Abstract:
A suction device for drawing off a sample liquid from filtration vessels (7) to recipient vessels (20), the suction device comprising an evacuable chamber (1) having an upper opening (5) with a continuous circular sealing surface (6) for supporting at least one top-mountable filtration vessel (7) at a filtration vessel edge and openable for insertion and removal of at least one recipient vessel (20); and a support (15) arranged parallel to the sealing surface (6) and beneath the sealing surface (6) for receiving the at least one recipient vessel (20) for positioning the at least one recipient vessel below the filtration vessel (7),wherein the evacuable chamber (1) is formed of a stationary, second chamber portion (1â€³) and a first chamber portion (1â€²) displaceable relative to the stationary, second chamber portion (1â€³), the first and second chamber portions (1â€² and 1â€³) complementing each other to form a sealed chamber in a charging position of the suction device, wherein the upper opening (5), together with the sealing surface (6), is located in the first chamber portion (1â€²) that releases the support (15) in an access position of the first chamber portion (1â€²), in which the first chamber portion (1â€²) is displaced from the second chamber portion (1â€³), providing for insertion and removal of the least one recipient vessel (20), and wherein the suction device further comprises a sliding guide (14) for enabling displacement of the first chamber portion (1â€³) relative to the second chamber portion (1â€³).