Patent US4773552A successfully refreshed from Google Patents.
US4773552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closure for sample bottles
Assignee: PE Manufacturing GmbH
•
Filing: 1987-05-04
•
Granted: 1988-09-27
•
Expires: 2007-05-04
Abstract
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.
Inventors
- 👤 Dietrich H. Boege
- 👤 Wolfgang Riegger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:08
CPC Classifications
B; B65; B65D; B65D51/00; B65D51/002
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
119 words
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.
Claim 2
Dependent Claim
119 words
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.
Claim 3
Dependent Claim
20 words
The device of claim 1 wherein said protrusions are equi-spaced about the circumference of said septum and extend radically outwardly.
Claim 4
Dependent Claim
10 words
The device of claim 1 wherein said protrusions are tapered.
Claim 5
Dependent Claim
65 words
The device of claim 1 which comprises an annular disk having a central aperture and being diametrically smaller than said recess of said cap, said disk being disposed within said recess between said top wall of said cap and said septum, said septum engaging said sidewall to retain said septum and said disk within said recess during positloning of said closure on a sample vial.
Claim 6
Dependent Claim
31 words
The device of claim 4 wherein said disk has a plurality of radially extending protrusions for centering said disk within said recess to align said disk aperture with said cap aperture.
Claim 7
Dependent Claim
13 words
The device of claim 1, wherein said septum is made of butyl rubber.
Claim 8
Dependent Claim
18 words
The device of claim 1 wherein said septum is made of silicone rubber, which is laminated with PTFE.
Claim 9
Dependent Claim
18 words
The device of claim 1 wherein said septum is made of silicone rubber, which is laminated with aluminum.
Claim 10
Dependent Claim
82 words
The device of claim 1 comprising an annular disc configured for mounting within said recess of said cap between said top wall of said cap and said septum, said disc having a central aperture smaller than said aperture of said cap, and said radially extending protrusions being configured for frictional resilient engagement with said side wall of said cap to retain said disc within said recess during positioning of the closure on a sample vial without deformation or distortion of said septum.
Claim 11
Independent Claim
72 words
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.
Claim 12
Independent Claim
72 words
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.
Claim 13
Dependent Claim
61 words
The method of claim 10 which comprises positioning an annular disc between the cap and septum and frictionally securing the septum within the cap prior to mounting the cap on the sample vial so as to retain the annular disc between the cap and septum during the mounting of the cap on the sample vial without deforming or distorting the septum.
References Cited (Backward Citations)
US1341382A
Cited
US2620939A
Cited
US2646183A
Cited
US2891689A
Cited
US3552591A
Cited
GB1255739A
Cited
US3912102A
Cited
US4248355A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-09-27 | 1992-03-28 | 1992-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-27 | 1996-03-28 | 1996-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-09-27 | 2000-03-28 | 2000-09-27 | $7700.00 | Window Closed / Lapsed |