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Apparatus-and-method-for-chemical-processing

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Apparatus and method for chemical processing

Details

Inventors: Juranas, David L.;
Assignee: TECAN Trading AG (Mannedorf, CH)
Primary Examiner: Tung; T.
Assistant Examiner: Gordon; Brian R.
Attorney, Agent or Firm: Womble Carlyle Sandridge & Rice, PLLC

The invention disclosed provides a method and apparatus for mounting pre-cut capillary sized pipette tubes to aspiration tubes in a chemical processor. According to a first embodiment, the pipette tubes are dispensed from a magazine hopper into channels in a series of blocks that are connected to one another as a conveyor. The conveyor reorients the pipette tubes from horizontal to vertical to be engaged by the vertical aspiration tubes. According to a second preferred embodiment, the blocks are in the form of one or more trays that reciprocate between the hopper and the aspiration tubes. In both embodiments, the apparatus includes a clamp having a pair of closeable jaws adapted to grasp and remove the pipette tubes from the aspiration tubes after use.

DETAILED DESCRIPTION The present invention provides an apparatus and method for chemical processing, comprising apparatus for conveying pre-cut pipette tubes to a position under a set of aspiration tubes and means for mounting the pipette tubes to the aspiration tubes in an automated chemical sample processor.
In particular, the pre-cut pipette tubes are stored in a magazine hopper and dispensed to a transporter adapted for receiving and transporting individual pipette tubes.
The transporter positions the pipette tubes for engagement by the aspiration tubes.
Upon completing the sequence of steps for combining chemical components, the invention apparatus discharges the used disposable pipette tubes and is ready to begin a second cycle.

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