Apparatus and Methods for Cleaning Reagent Dispensing Tips of a Screening Unit
First Claim
1. Method comprising:
- inserting a reagent dispensing tip into a cleaning chamber;
spraying wash fluid on the reagent dispensing tip while inserted in the cleaning chamber; and
moving a gas through the cleaning chamber after spraying wash fluid.
1 Assignment
0 Petitions
Accused Products
Abstract
A plurality of reagent dispensing tips (15) are inserted through frustoconical openings (28) in a cover (16) of a cleaning chamber in the form of intersecting axial bores (14) and sprayed with wash fluid from spray passages (34) in the peripheral wall (20) of the cover (16). Wash fluid from the spray passages (34) and flowing through the reagent dispensing tips (15), if hollow, can be drained from the cleaning chamber through a drain port (42). Air is drawn through the frustoconical openings (28) around the reagent dispensing tips (15) into the cleaning chamber, through filter element (64) and from a waste chamber (50) by a vacuum source (78) to remove wash fluid from and otherwise dry the reagent dispensing tips (15).
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Citations
22 Claims
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1. Method comprising:
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inserting a reagent dispensing tip into a cleaning chamber; spraying wash fluid on the reagent dispensing tip while inserted in the cleaning chamber; and moving a gas through the cleaning chamber after spraying wash fluid. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. Apparatus comprising, in combination:
- a cleaning chamber;
a reagent dispensing tip moveable relative to the cleaning chamber, with the cleaning chamber including a spray passage spraying wash fluid on the reagent dispensing tip moving relative to the cleaning chamber; and
a pressure differential source moving a gas through the cleaning chamber and around the reagent dispensing tip. - View Dependent Claims (12, 13, 15, 16, 17, 18, 19, 21, 22)
- a cleaning chamber;
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14. (canceled)
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20. (canceled)
Specification