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Fluid sampling apparatus and fluid analyzer having the same

  • US 7,105,133 B2
  • Filed: 09/24/2002
  • Issued: 09/12/2006
  • Est. Priority Date: 09/28/2001
  • Status: Expired due to Fees
First Claim
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1. A fluid sampling apparatus comprising:

  • a first nozzle assembly including a plurality of outlet nozzles, each having a first end that is fixed to one of a plurality of fluid lines, the outlet nozzles each supplying a flow of fluid from the corresponding fluid lines, wherein the first nozzle assembly further includes a first plate having a disc shape, the first plate including a plurality of first fluid passages passing through the first plate and formed along a periphery of the first plate, and wherein the outlet nozzles are connected to first sides of the first fluid passages;

    a second nozzle assembly installed in opposition to the first nozzle assembly and including an inlet nozzle that receives the flow of fluid from a selected one of the plurality of outlet nozzles, wherein the second nozzle assembly further includes a second plate having a disc shape, and wherein the inlet nozzle is connected to a first side of the second plate;

    a driving system that selects one of the outlet nozzles from the plurality of outlet nozzles, wherein in a first position, the driving system connects a second end of the selected one of the outlet nozzles with the inlet nozzle, and wherein in a second position, the driving system separates the second end of the selected one of the outlet nozzles from the inlet nozzle, wherein the driving system includes a rotating shaft connected to a central portion of the second plate, a motor connected to the rotating shaft for aligning the selected outlet nozzle with the inlet nozzle, and a pneumatic cylinder connected to the first plate for connecting and separating the selected outlet nozzle to and from the inlet nozzle, anda second fluid passage connected to the inlet nozzle passing through a central portion of the second plate to a center axis of the rotating shaft, wherein the second nozzle assembly further includes a plurality of auxiliary inlet nozzles connected to the first side of the second plate corresponding to the plurality of outlet nozzles other than the selected outlet nozzle, and a plurality of third fluid passages formed through the second plate along a periphery of the second plate, wherein the auxiliary inlet nozzles are connected to the third fluid passages, respectively.

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