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EP0034438A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Tip vessel element

Assignee: Thermo Fisher Scientific Oy
•
Filing: 1981-02-03
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Granted: —
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Expires: 2001-02-03
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Abstract

Abstract The subject of the present invention is a tip vessel element (1) used in connection with liquid transfer devices. The tip vessel (2) in the tip vessel element (1) orthe tip vessels (2), which are parallel to each other, e.g., in a row or matrix form, in the tip vessel element (1) are supported by a support and fastening plate (3). The tip vessel or tip vessels (2) and the support and fastening plate (3) are made as one piece preferably out of a plastics material by extrusion. According to the invention on the inside face of the wall (4) of each tip vessel of thetipvessel element (1) there is,facing towards the interior of the tip vessel (2), at least one such annular projection, flange or bulging (5), projecting from the said wall face and made of one piece with the tip vessel element (1), as, when the tip vessel element (1) is attached to the liquid transfer device, forms a sealing point around the piston (6) jointly operative with the tip vessel (2) concerned. At least a space required by the stroke length of the piston remains in each tip vessel (2) underneath the sealing point.

Inventors

  • 👤 Pertti Ekholm

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-05 18:40
CPC Classifications
F; F16; F16L; F16L39/00; B; B01; B01L; B01L3/00; B01L3/02; B01L3/0275

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 199 words
A tip vessel element (1) for use in con- necation with liquid transfer devices, the tip vessel (2) in the tip vessel element (1) or the tip vessels (2), which are parallel to each other, e.g., in a row or matrix form, in the tip vessel element (1) being supported by a support and fastening plate (3) and the tip vessel or tip vessels (2) and the support and fastening plate (3) being made as one piece preferably out of a plastics material by extrusion, characterized in that on the inside face of the wall (4) of each tip vessel (2) of the tip vessel element (1) there is, facing towards the interior of the tip vessel (2), at least one such annular projection, flange or bulging (5), projecting from the said wall face and made of one piece with the tip vessel element (1), as, when the tip vessel element (1) is attached to the liquid transfer device, forms a sealing point around the piston (6) jointly operative with the tip vessel (2) concerned and that at least a space required by the stroke length of the piston remains in each tip vessel (2) underneath the sealing point.
Claim 2
Dependent Claim 199 words
A tip vessel element (1) for use in con- necation with liquid transfer devices, the tip vessel (2) in the tip vessel element (1) or the tip vessels (2), which are parallel to each other, e.g., in a row or matrix form, in the tip vessel element (1) being supported by a support and fastening plate (3) and the tip vessel or tip vessels (2) and the support and fastening plate (3) being made as one piece preferably out of a plastics material by extrusion, characterized in that on the inside face of the wall (4) of each tip vessel (2) of the tip vessel element (1) there is, facing towards the interior of the tip vessel (2), at least one such annular projection, flange or bulging (5), projecting from the said wall face and made of one piece with the tip vessel element (1), as, when the tip vessel element (1) is attached to the liquid transfer device, forms a sealing point around the piston (6) jointly operative with the tip vessel (2) concerned and that at least a space required by the stroke length of the piston remains in each tip vessel (2) underneath the sealing point.
Claim 3
Dependent Claim 33 words
A tip vessel element as claimed in claim 1, characterized in that in each tip vessel (2) the sealing point (5) is placed right in the upper part of the tip vessel (2).
Claim 4
Dependent Claim 45 words
A tip vessel element as claimed in claims 1 and 2, characterized in that the upper part (7) of each tip vessel (2) extends at least the length required by the sealing point (5) above the upper face of the support and fastening plate (3).

References Cited (Backward Citations)

FR2432161A1 Cited

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