Movable cleaning assembly for an aspirating needle

Details Movable cleaning assembly for an aspirating needle Movable cleaning assembly for an aspirating needle

G - Physics

01

N

150/24

G01N 1/00 (2006.01) G01N 35/10 (2006.01)

Patent

CA 1297391

27 ABSTRACT OF THE DISCLOSURE A liquid dispensing apparatus is characterized by a cleaning arrangement movable with the aspirating needle of the apparatus. The cleaning arrangement includes a pair of mating wellheads one of which has a flange with a planar surface thereon. The other of the wellheads has a corresponding cutout therein. When registered, the wellhead cooperate to define a well-like chamber with a closed bottom. The wellheads are each mounted on an arm which is movable from open to closed dispositions in response to movement of the aspirating needle. 27

538638

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