Closure for sample bottles
First Claim
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.
3 Assignments
0 Petitions
Accused Products
Abstract
A closure and method of assembly for sample vials comprising a cap and a septum with the septum having a plurality of radially extending protrusions for retentive engagement with the cap to retain the septum and annular disk within the cap during positioning of the closure on the sample vial.
-
Citations
11 Claims
-
1. A closure for a sample vial utilized for introducing a sample into a gas chromatograph in accordance with the head space method comprising
a 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 and a 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.
-
10. A method of assembling a closure of the type having a cap and septum on a sample vial for use in gas chromatogoraphy comprising the steps of:
-
positioning the septum within the cap, frictionally securing the septum within the cap without deformation or distortion of the septum prior to mounting the cap on the sample vial, and mounting the cap to the sample vial to seal the vial opening with the septum. - View Dependent Claims (11)
-
Specification