US3595086A
Expired / Lapsed
US
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Extraction and storage arrangement
Assignee: F Hoffmann La Roche AG
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Filing: 1969-11-20
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Granted: 1971-07-27
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Expires: 1989-11-20
Abstract
Abstract Device for sampling and multiple stocking of a liquid substance, includes a compact set of tubes arranged in a row with the openings of each end face stopped up by a plug. The set of tubes are fitted, near one of its ends, with channels communicating between the tubes when the plug at said end is in a first position, but isolates each tube when the plug is in a second position.
Inventors
- 👤 Claude Jean-Philippe Bonnet
- 👤 Robert Laucournet
- 👤 Jean Alexandre Guigan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:02
CPC Classifications
B; B01; B01L; B01L3/00; B01L3/50; B01L3/502; A; A61; A61B; A61B5/00; A61B5/15; A61B5/150007; A61B5/150015; A61B5/15003; A61B5/150053; A61B5/150061; A61B5/150099; A61B5/150206; A61B5/150213; A61B5/150221; A61B5/150229; A61B5/150236; A61B5/150244; A61B5/150251; A61B5/150267; A61B5/150351; A61B5/150374; A61B5/150381; A61B5/150389; A61B5/150473; A61B5/150496; A61B5/150732; A61B5/150755; A61B5/153; G; G01; G01N; G01N1/00; G01N1/02; G01N1/10; G01N1/18; B01L2300/00; B01L2300/04; B01L2300/041; B01L2300/042; B01L2300/08; B01L2300/0861; B01L2300/0864; B01L2400/00; B01L2400/04; B01L2400/0475; B01L2400/0481; B01L2400/0487; B01L2400/049; B01L2400/06; B01L2400/0605
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
178 words
In an arrangement for extracting a sample of a liquid from a source of the liquid including a unit for storing the sample comprising a plurality of parallel tubular chambers, a first closure element for closing first ends of all the chambers, a second closure element for closing second ends of all the chambers, and further comprising means for connecting a first chamber to the source and a second chamber to means for reducing the pressure in the unit so as to draw the sample into the unit by suction, the improvement comprising: internal passages carried by said unit interconnecting the chambers near their first ends in a series combination extending from the first chamber to the second chamber, whereby said first closure element successively engages the chambers in a first position in which the chambers are isolated from the surroundings but in communication with each other via said passages in a second position wherein the chambers are isolated from the surroundings and also isolated from one another by closure of the passages by the first closure element.
Claim 2
Dependent Claim
178 words
In an arrangement for extracting a sample of a liquid from a source of the liquid including a unit for storing the sample comprising a plurality of parallel tubular chambers, a first closure element for closing first ends of all the chambers, a second closure element for closing second ends of all the chambers, and further comprising means for connecting a first chamber to the source and a second chamber to means for reducing the pressure in the unit so as to draw the sample into the unit by suction, the improvement comprising: internal passages carried by said unit interconnecting the chambers near their first ends in a series combination extending from the first chamber to the second chamber, whereby said first closure element successively engages the chambers in a first position in which the chambers are isolated from the surroundings but in communication with each other via said passages in a second position wherein the chambers are isolated from the surroundings and also isolated from one another by closure of the passages by the first closure element.
Claim 3
Dependent Claim
54 words
The arrangement according to claim 1, wherein: that first closure element comprises a hollow portion adapted to penetrate into each of the first ends of the said chambers and has at least one part which can be pierced with a hollow needle to permit said needle to penetrate into one of the closed chambers.
Claim 4
Dependent Claim
26 words
The arrangement according to claim 2, wherein: the storage unit comprises on a first lateral face, a part which can be pierced by a hollow needle.
Claim 5
Dependent Claim
60 words
The arrangement according to claim 3, wherein: said part of the storage unit which can be pierced is formed by a passage provided in the vicinity of said first end of the said second chamber and opening into the second chamber, and wherein said passage is closed by a strip of material which can be pierced by the hollow needle.
Claim 6
Dependent Claim
38 words
The arrangement according to claim 4, wherein: the second closure element is formed by a sheet of material which can be easily pierced covered with a plate having a hole facing each second end of the said chambers.
Claim 7
Dependent Claim
35 words
The arrangement accordiNg to claim 5, wherein: said plate is provided with an annular protuberance adapted to engage each of the said second ends of the chambers to provide a fluidtight seal between said chambers.
Claim 8
Dependent Claim
53 words
The arrangement according to claim 5, wherein: a second lateral face for the said storage unit is formed with a passage penetrating into one end portion of said first chamber, and said passage is closed by a strip of material which can be pierced by a hollow needle for extracting said liquid substance.
Claim 9
Dependent Claim
40 words
The arrangement according to claim 7, wherein: said passage penetrates into the second end of the said first chamber, and the strip comprises an edge portion of a sheet which is folded to cover part of the second lateral face.
Claim 10
Dependent Claim
90 words
The arrangement according to claim 8, further comprising a member for supporting a needle for extracting said liquid substance having one face provided with a latching element for cooperating with fixing means carried by said needle, said latching element being disposed level with the passage formed in the said second lateral face, a support formed with a cavity in which said storage unit can be encased and comprising first means cooperating with second means carried by the needle-supporting member to assemble the said needle-supporting member with the storage unit support.
Claim 11
Dependent Claim
50 words
The arrangement according to claim 9, wherein: said first means are formed by two grooves provided on lateral, external faces of the support defining said cavity, and said second means are formed by two lugs extending perpendicular to the face of the needle-supporting member and adapted to engage said grooves.
Claim 12
Dependent Claim
48 words
The arrangement according to claim 10, wherein: said latching element comprises a part slidably mounted in a groove formed in the face of the needle-supporting member, and adapted to cooperate with said fixing member, and wherein said fixing member is of frustoconical form and fixed to the needle.
Claim 13
Dependent Claim
80 words
The arrangement according to claim 9, wherein: said means for reducing the pressure in the storage unit comprises a piston movable in a cylinder having a closed end means externally for attaching said cylinder to the storage unit support, a pipe opening into the space between the piston and the said closed end of the cylinder, for communicating with the chambers of the storage unit through a hollow needle passing through the passage formed in the said first lateral face.
Claim 14
Dependent Claim
80 words
The arrangement according to claim 10, wherein: said means for reducing the pressure in the storage unit comprises a piston movable in a cylinder having a closed end means externally for attaching said cylinder to the storage unit support, a pipe opening into the space between the piston and the said closed end of the cylinder, for communicating with the chambers of the storage unit through a hollow needle passing through the passage formed in the said first lateral face.
Claim 15
Dependent Claim
80 words
The arrangement according to claim 11, wherein: said means for reducing the pressure in the storage unit comprises a piston movable in a cylinder having a closed end means externally for attaching said cylinder to the storage unit support, a pipe opening into the space between the piston and the said closed end of the cylinder, for communicating with the chambers of the storage unit through a hollow needle passing through the passage formed in the said first lateral face.
Claim 16
Dependent Claim
84 words
The arrangement according to claim 9, wherein: said means for reducing the pressure in the storage unit comprises a chamber having flexible walls communicating through a first nonreturn valve with the atmosphere and through a second nonreturn valve with a pipe connected to the said storage unit by means of a hollow needle passing through the passage formed in the said first lateral face, said nonreturn valves being operative in opposite senses so that one of them is open when the other is closed.
Claim 17
Dependent Claim
84 words
The arrangement according to claim 10, wherein: said means for reducing the pressure in the storage unit comprises a chamber having flexible waLls communicating through a first nonreturn valve with the atmosphere and through a second nonreturn valve with a pipe connected to the said storage unit by means of a hollow needle passing through the passage formed in the said first lateral face, said nonreturn valves being operative in opposite senses so that one of them is open when the other is closed.
Claim 18
Dependent Claim
84 words
The arrangement according to claim 11, wherein: said means for reducing the pressure in the storage unit comprises a chamber having flexible walls communicating through a first nonreturn valve with the atmosphere and through a second nonreturn valve with a pipe connected to the said storage unit by means of a hollow needle passing through the passage formed in the said first lateral face, said nonreturn valves being operative in opposite senses to that one of them is open when the other is closed.
Claim 19
Dependent Claim
27 words
An arrangement according to claim 15, characterized in that it comprises a member for regulating the closure of the air exhaust pipe by compressing the said pipe.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |