US3593909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reaction vessel closure
Assignee: Eppendorf SE
•
Filing: 1969-04-29
•
Granted: 1971-07-20
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Expires: 1989-04-29
Abstract
Abstract A vessel for small quantities of liquid including a top closure comprising a pierceable foil responsive to puncture by an obliquely sharpened cannula by elastic deformation of the prick hole into close bearing contact with the cannula.
Inventors
- 👤 Wilhelm Bergmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:57
CPC Classifications
B; B01; B01L; B01L3/00; B01L3/50; B01L3/508; B01L3/5082
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
62 words
A reaction vessel for small quantities of liquid and having a top closure adapted to be pierced by a sharpened cannula, said top closure consisting of a foil bridging substantially the entire throat of said vessel, said foil exhibiting sufficient elasticity to provide elastic deformation of a prick hole edge to effect bearing contact upon the outer wall of such a cannula.
Claim 2
Dependent Claim
62 words
A reaction vessel for small quantities of liquid and having a top closure adapted to be pierced by a sharpened cannula, said top closure consisting of a foil bridging substantially the entire throat of said vessel, said foil exhibiting sufficient elasticity to provide elastic deformation of a prick hole edge to effect bearing contact upon the outer wall of such a cannula.
Claim 3
Dependent Claim
23 words
A reaction vessel according to claim 1, characterized in that said foil has a thickness within the range of 0.08 to 0.35 mm.
Claim 4
Dependent Claim
19 words
A reaction vessel according to claim 1 wherein said foil is joined to the upper vessel edge by welding.
Claim 5
Dependent Claim
16 words
A reaction vessel according to claim 3 wherein said foil is applied under a slight tension.
Claim 6
Dependent Claim
22 words
A reaction vessel according to claim 3 wherein the thickness of said foil is in the range of 0.08 to 0.2 mm.
Claim 7
Dependent Claim
15 words
A reaction vessel according to claim 3 wherein said foil is approximately 0.1 mm. thick.
Claim 8
Dependent Claim
38 words
A reaction vessel according to claim 1 wherein said foil is an integral part of a removable cover and said cover includes a reinforced edge, said cover being adapted for insertion into the upper throat of the vessel.
Claim 9
Dependent Claim
22 words
A reaction vesseL according to claim 7 wherein the thickness of the foil is in the range of 0.2 to 0.3 mm.
Claim 10
Dependent Claim
20 words
A reaction vessel according to claim 1 wherein the foil and the vessel are both fabricated from a polypropylene-based plastic.
Claim 11
Dependent Claim
24 words
A reaction vessel according to claim 7, wherein said cover and said vessel are formed as integral components of a single polypropylene-based plastic unit.
Claim 12
Dependent Claim
87 words
A reaction vessel for small quantities of liquid, having a substantially cylindrical upper body portion with a top closure adapted to be pierced by a sharpened cannula; said top closure consisting of a foil substantially bridging the opening of said upper body portion; said foil and said vessel being fabricated of polypropylene-based plastic; and said foil having a thickness of 0.08 to 0.35 mm. and being characterized by sufficient elasticity such that the prick hole edge effects bearing contact upon the outer wall of a piercing cannula.
Claim 13
Dependent Claim
87 words
A reaction vessel for small quantities of liquid, having a substantially cylindrical upper body portion with a top closure adapted to be pierced by a sharpened cannula; said top closure consisting of a foil substantially bridging the opening of said upper body portion; said foil and said vessel being fabricated of polypropylene-based plastic; and said foil having a thickness of 0.08 to 0.35 mm. and being characterized by sufficient elasticity such that the prick hole edge effects bearing contact upon the outer wall of a piercing cannula.
Claim 14
Dependent Claim
45 words
A reaction vessel according to claim 11, wherein said foil is an integral part of a removable cover having a reinforced edge and dimensioned to fit within the opening of said upper body portion, and wherein said cover is an integral part of said vessel.
References Cited (Backward Citations)
US3208710A
Cited
US3325031A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |