Seal tester

  • US 5,172,583 A
  • Filed: 09/12/1991
  • Issued: 12/22/1992
  • Est. Priority Date: 09/12/1990
  • Status: Expired due to Fees
First Claim
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1. Leak tester comprising a vacuum chamber in which a device under test is placed and a helium leakage detector connected to said vacuum chamber, said device under test being adapted to be filled with helium or with air-helium mixture through an exterior pipe entering said vacuum chamber and incorporating a coupling for connecting it to said device under test and said coupling being surrounded by a collector chamber connected by a pipe to a vacuum pump outside said vacuum chamber.

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