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Closure for sample bottles

  • US 4,773,552 A
  • Filed: 05/04/1987
  • Issued: 09/27/1988
  • Est. Priority Date: 11/03/1986
  • Status: Expired due to Fees
First Claim
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1. A closure for a sample vial utilized for introducing a sample into a gas chromatograph in accordance with the head space method comprisinga pot shaped cap having a top wall with a central aperture and a side wall forming a recess to receive the top of a sample vial anda septum for covering the opening of a sample vial and comprised of elastic material which is self-resealing after being pierced by a needle,said septum being generally circular with a plurality of radially extending protrusions configured for frictional resilient engagement with said side wall of said cap to retain said septum within said recess without deformation or distortion during positioning of the closure on a sample vial.

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