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Automatic sampling apparatus

  • US 4,890,930 A
  • Filed: 01/12/1988
  • Issued: 01/02/1990
  • Est. Priority Date: 01/16/1987
  • Status: Expired due to Fees
First Claim
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1. In an automatic sample supply apparatus which holds a plurality of sample vessels in a waiting station in a matrix pattern including a plurality of rows of sample vessels, and which sends out the sample vessels in the front row laterally one by one to a sampling station, returns the sample vessels which have finished the required treatment to the waiting station, and advances the sample vessels in a rearmost row in the waiting station collectively as a whole in one step one row at a time when all the sample vessels in the front row of the waiting station have been sent out, the improvement comprising the sampling station being provided with a suction needle assembly for sampling the sample in a sample vessel and which comprises a single needle for penetrating a stopper secured to the sample vessels and a holding block for said single needle.

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