WO1997046875A1 - Dispositif de controle en continu du contenant d'enceintes fermees hermetiquement - Google Patents
Dispositif de controle en continu du contenant d'enceintes fermees hermetiquement Download PDFInfo
- Publication number
- WO1997046875A1 WO1997046875A1 PCT/FR1997/000957 FR9700957W WO9746875A1 WO 1997046875 A1 WO1997046875 A1 WO 1997046875A1 FR 9700957 W FR9700957 W FR 9700957W WO 9746875 A1 WO9746875 A1 WO 9746875A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- internal
- box
- external
- annular
- cell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/02—Food
Definitions
- the present invention relates to a device making it possible to continuously monitor the content of enclosures constituted by a box body hermetically closed by a cover crimped thereon.
- This device can advantageously be used to control the stability of cans, belonging to a batch, prepared in parallel in the same process and, in general, of products subjected to a heat treatment giving them the biological stability at room storage temperature.
- This prior arrangement includes the following elements:
- a set of mounting parts screwed one on the other, on either side, of the opening of the cover, so as to maintain a set of seals and to define a control chamber can be isolated, on the one hand, from the inside of the can and, on the other hand, from the outside environment,
- this control chamber being subdivided into two cells by a filter membrane permeable to gases but impermeable to microorganisms and in particular to pathogenic germs, namely, on the one hand, a lower cell or receiving cell and, on the other share, an upper cell or collection cell,
- the sealing means consist of a seal generally made of silicone intended to be pierced by a needle connected to continuous analysis members so as to allow the capture of gases, in particular carbon dioxide, having penetrated into the control chamber after rupture of the seal.
- gases in particular carbon dioxide
- a first object of the invention is to remedy these drawbacks by designing a device, the implementation of which does not require an operation of incision of a joint by means of a needle.
- the invention relates to a device of the aforementioned type characterized in that the sealing means consist of a screw capable of cooperating with all of the mounting parts and, if necessary, with a sealing joint. annular, and in that the cap ⁇ tage means consist of a threaded end piece intended to cooperate with the assembly of mounting parts by replacing the closure screw and, if necessary, the annular closure seal during the check, so as to break the tightness of the receiving cell vis-à-vis the enclosure or the box and comprising a bore connected to continuous analysis members so as to allow capturing the gases, in particular carbon dioxide, which have entered the receiving cell.
- the sealing means consist of a screw capable of cooperating with all of the mounting parts and, if necessary, with a sealing joint.
- annular and in that the cap ⁇ tage means consist of a threaded end piece intended to cooperate with the assembly of mounting parts by replacing the closure screw and, if necessary, the annular closure seal during the check, so as to break the tightness of the receiving cell vis-à-vis the enclosure or the
- the bore of the capture tip can have a diameter much larger than the internal channel of the needle according to the aforementioned prior art, which improves the reliability of the readings.
- the device according to the invention is specially adapted for the control of cans, but could, of course, be used to control and analyze the content of any closed enclosure, such as for example the contents of drums containing chemicals (solvents, paints, ...) without having to open them.
- An essential aspect of the invention is linked to the fact that the enclosures or boxes controlled can follow the other enclosures or boxes of the same batch throughout the production chain and undergo the same treatments.
- the continuous analysis members can be constituted by members capable of measuring, and if necessary, representing graphically the variations as a function of time of the conductivity of a solution, in particular of a potash solution in contact with the gases, in particular carbon dioxide, captured. This is an impedance measurement based on the fact that the conductivity of the solution analyzed is a function of its C0 2 concentration; the principle of such a check is known in itself.
- the assembly of mounting parts comprises two annular parts screwed one on the other, namely an essentially planar external annular part and an internal annular part comprising a cylindrical part provided, on its external face, of a file ⁇ cooperating with a corresponding thread of the external annular part and extending by a flange at its lower end.
- the cover is sandwiched at the periphery of its OPEN ⁇ median ture between the underside of the ex- ternal annular part and the upper face of the flange of the inner annular part.
- the upper face of this flange is provided with a peripheral groove receiving a first O-ring coming to bear against the lower face of the cover so as to contribute to guaranteeing the tightness of the control chamber with respect to the internal part of the enclosure or of the box and with respect to -vis the middle ex- i content
- the manufacturer can, of course, use the usual commercial covers and pierce them himself with the opening, he can then carry out himself, in his factory, the 0 place of the two annular parts as well as of the first gasket, which corresponds to the first stages of assembly of the device
- the internal face of the internal annular part is provided, on the one hand, at its upper part with a peripheral groove intended to receive a second O-ring contributing to guarantee sealing of the control chamber vis-à-vis the inside of the enclosure or the box and vis-à-vis the external environment and, on the other hand, at its lower part, with a thread, the case 0 if necessary delimited by a shoulder and intended to cooperate with a corresponding threaded part of a main mounting part enclosing the control chamber
- this main mounting part is intended to be screwed onto the internal face of the cover previously equipped with the two annular parts as well as the first and second O-rings.
- the main mounting part is provided, at its upper part with a substantially cylindrical central recess corresponding 0 to the control chamber.
- This recess comprises a shoulder defining a bearing surface for the filtering membrane and thus delimiting the receiving cell and the capturing cell.
- the main mounting part -> is also provided with a peripheral recess having a substantially U-shaped sec ⁇ tion
- This recess comprises a central annular branch as well as two lateral annular branches, namely an external lateral branch and a branch internal lateral; this last branch is pierced at its lower part with a series of essentially horizontal reception channels opening into the reception cell, preferably just below the filter membrane.
- the tightness of this peripheral recess vis-à-vis the external environment and the interior of the enclosure or of the box is guaranteed by the two O-rings mounted on the internal annular part as well as by a third toical seal. mounted in a groove or a peripheral shoulder provided for this purpose on the upper face of the external lateral branch and capable of coming to bear against the cover.
- the external face of the internal lateral branch is provided with a thread cooperating with the thread provided on the internal face of the internal annular part so as to allow the mounting part to be fixed. main on the internal annular part after mounting it on the opening of the cover.
- a hexagonal end-piece provided at the lower end of the main mounting part, makes it easier to fix it to the internal annular part by tightening with a wrench.
- the internal face of the internal lateral branch is, moreover, provided with a first thread which cooperates with a drilled screw ensuring the blocking of the filtering membrane, by means of flat annular seals, mounted on either side of this membrane.
- the device according to the invention therefore makes it possible to very quickly determine the alteration of cans belonging to the same batch, so as to be able to treat as soon as possible the causes of this alteration at the level of the production line and to limit the number of boxes unfit for consumption to be destroyed.
- the internal face of the internal lateral branch is provided, at its upper part with a second thread capable of cooperating, on the one hand, with the closure screw and, on the other hand, with the capture nozzle.
- this nozzle makes it possible to obtain, simultaneously, the displacement of the main mounting part from the rest position to the capture position and the connection of the control chamber and the continuous analysis members. .
- Another "sensitive" point of the device according to the invention is linked to the risk that, in the case of a highly contaminated enclosure or box, liquid could be entrained with the gases emitted during the rupture of sealing and being pushed by the gas so as to seal the filtering membrane.
- Another object of the invention consists in eliminating this risk. It should be noted that the horizontal configuration of the reception channels as well as their positioning just below the level of the filtering membrane is already such as to attenuate it taking into account the presence of two bowls in which the entrained liquid can be gather, one of these cuvettes being located at the bottom of the reception cell, while the other, of annular shape is located at the bottom of the peripheral recess
- the present invention however makes it possible to eliminate this risk almost completely.
- the device comprises a threaded support end ou ⁇ green at its middle part at the level of which it cooperates with the assembly of mounting parts so as to allow the establishment of the capture nozzle and equipped, at its periphery, with at least two mounting screws positioned to come to bear at the crimping of the cover, so as to allow the volume of the enclosure or the box to be increased in the area adjacent to the assembly of mounting parts and in particular to the upper part of the external lateral branch of the peripheral recess
- This characteristic makes it possible to artificially create a free space or "head space" which makes it possible to eliminate the drawback of clogging.
- the support end piece cooperates with a thread provided for this purpose on the external face of the external annular part.
- This support end piece which makes it possible to lift the cover can be easily put in place by simple screwing after removal of the closure screw, but of course before the seal breaks after mounting of the end cap. .
- FIG. 1 is a schematic section of the device in a position in which the collection cell is kept isolated from the outside environment by the closure screw,
- FIG. 2 is a section similar to FIG. 1, but in which the closure screw has been removed while the support endpiece has been positioned,
- FIG. 3 is a section similar to Figure 2 but showing the device after final positioning of the support end piece
- - Figure 4 is a section similar to Figure 3 but showing the device after mounting the capture nozzle.
- the device is essentially made up of a cover 1 shown diagrammatically which is largely identical to those with which the tins of the batch to be inspected are fitted but which is provided, in its part middle tie, of a circular opening 2 on either side of which is fixed a set 3 of mounting parts "fixed on one another and of gaskets
- the assembly 3 delimits, at its internal part, a control chamber 4 which can be isolated, on the one hand, from the inside A of the box and, on the other hand, from the outside environment B
- a filter membrane 5 permeable to gases but impermeable to microorganisms and in particular pathogenic germs subdivides the control chamber 4 into a lower cell 6 or reception cell and an upper cell 7 or capture cell
- the respective roles of these two cells 6, 7 will be specified below
- the internal annular part 9 com ⁇ carries a cylindrical part 9 ⁇ which is extended at its lower end by a flange 9 2
- the cylindrical part 9 X is provided on its external face with a thread 9 3 which cooperates with a corresponding thread 8 X of the external annular part 8
- the cover 1 is sandwiched, at the periphery of its median opening 2, between the face lower 8 2 of the outer annular part and the upper face 9 4 of the flange 9 2 of the inner annular part 9
- the upper face 9 4 of the flange 9 2 is provided with a peripheral groove 9 5 which receives a first O-ring 10 bearing against the lower face of the cover 1
- the internal face 9 D of the internal annular part 9 is provided, on the one hand and at its upper part. of a peripheral groove 9 7 receiving a second O-ring 11 and, on the other hand, at its lower part, with a threaded part 9 8 which cooperates with a corresponding threaded part 12 x one piece main mounting 12
- this main mounting piece 12 is provided with a median recess corresponding to the control chamber 4 as well as an annular peripheral recess 13 having a U-shaped section
- the median recess 4 is essentially cylindrical in shape and has a shoulder 14 which defines a support surface for the filter membrane 5 and thus delimits the receiving cell 6 and the collecting cell 7
- the peripheral recess 13 comprises, for its part, a central annular branch 16 as well as two lateral annu ⁇ lar branches, namely an external lateral branch 17 and an internal lateral branch 18, the latter being pierced, at its lower part, d 'a series of substantially horizontal reception channels 19 which open into the reception cell 6 just below the filter membrane 5 and whose role will be described in more detail in the remainder of this presentation
- a third O-ring 20 which is mounted in a peripheral shoulder 21 provided on the upper face of the external lateral branch 17, this third O-ring 20 is in fact likely to come in press against cover 1
- the internal lateral branch 18 is provided, on its external face, with a thread 22 which cooperates with the thread 9 8 provided on the internal face 9 5 of the internal annular part 9 to allow the assembly of the part main mounting 12 on the cover 1 equipped with two annular parts 8, 9
- a hexagonal tip 23 provided at the lower end of the main mounting piece 12 facilitates this mounting.
- the internal face of the internal lateral branch 18 is, for its part, provided with a thread 43 allowing the installation of a closure screw 24 cooperating with a plane annular closure seal 25 so as to maintain the cell 7 isolated from the external environment B.
- the can fitted with the device according to the invention can therefore undergo the same filling, crimping and autoclaving operations as the can of the batch to be checked.
- the thread 43 extends downward to the internal part of the collection cell 7 by a thread 43 'so as to allow the installation of a drilled screw 26 which ensures the crushing and blocking of the filter membrane 5 .
- the closure screw 24 as well as the closure joint 25 are removed and the collection cell 7 is brought into contact with the external medium A.
- the device according to the invention is also equipped with a support end piece 27 open at its central part 28 and comprising, at its internal part, an annular thread 29 cooperating with a fi ⁇ corresponding lettering 8 3 provided on the external face of the internal annular part 8.
- This support end piece 27 is provided, at its periphery, with two mounting screws 30, 30 ′ positioned to come to bear at the crimping level 31 of the cover 1.
- the device is also equipped with a capture nozzle 32 introduced into the opening 28 of the support nozzle 27 so as to close the collection chamber 7 and comprising a threaded portion 33 cooperating with the file ⁇ tage 23 of the internal face of the internal annular branch 18, the sealing of the assembly, at this level, is ensured by an O-ring 35 pressing on the upper face of the branch 18
- a median through hole 34 makes it possible to connect the collection chamber 7 to non-presented continuous analysis members.
- the threads of the various mounting parts constituting the device according to the invention are designed so that the installation of the threaded end piece 32 causes the displacement of the mounting piece 12 from the position a according to arrow a. of rest shown in the figures towards a collection position offset downwards in which the sealing of the peripheral recess 13 and, consequently, of the control chamber 4 with respect to the internal part A of the box canning is no longer guaranteed.
- the third O-ring 20 is no longer resting against the underside of the cover 1 and the gases present in the box can penetrate into the peripheral recess 13 and then into the receiving cell 6 passing through the reception channels 19, they thus reach the collection cell 7 through the filter membrane 5 and then to the continuous analysis members.
- the artificial increase in the volume of the can obtained thanks to the installation of the capture nozzle 27, makes it possible to avoid any entrainment of liquid with the gases captured as much as possible.
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Medicinal Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Closures For Containers (AREA)
Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/011,394 US6141940A (en) | 1996-06-05 | 1997-06-02 | Device for continuous controlling of the contents of hermetically sealed containers |
| AU30976/97A AU3097697A (en) | 1996-06-05 | 1997-06-02 | Device for continuous controlling of the contents of hermetically sealed containers |
| DE19780555T DE19780555C2 (de) | 1996-06-05 | 1997-06-02 | Vorrichtung zur kontinuierlichen Kontrolle des Inhalts von hermetisch verschlossenen Behältern |
| GB9802371A GB2319610B (en) | 1996-06-05 | 1997-06-02 | Device for continuous controlling of the contents of hermetically sealed containers |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR96/06922 | 1996-06-05 | ||
| FR9606922A FR2749661B1 (fr) | 1996-06-05 | 1996-06-05 | Dispositif de controle en continu du contenant d'enceintes fermees hermetiquement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1997046875A1 true WO1997046875A1 (fr) | 1997-12-11 |
Family
ID=9492733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR1997/000957 Ceased WO1997046875A1 (fr) | 1996-06-05 | 1997-06-02 | Dispositif de controle en continu du contenant d'enceintes fermees hermetiquement |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US6141940A (fr) |
| AU (1) | AU3097697A (fr) |
| DE (1) | DE19780555C2 (fr) |
| FR (1) | FR2749661B1 (fr) |
| GB (1) | GB2319610B (fr) |
| WO (1) | WO1997046875A1 (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19947786A1 (de) * | 1999-10-05 | 2001-04-19 | Bosch Gmbh Robert | Verpackungsmaschine, insbesondere zum Abfüllen und Verschliessen von flüssigen Pharmazeutika enthaltenden Behältnissen |
| IT1311103B1 (it) * | 1999-10-20 | 2002-02-28 | Ulisse Rapparini | Confezionatrice automatica per il condizionamento di sacchetti inatmosfera controllata. |
| WO2013126229A2 (fr) | 2012-02-10 | 2013-08-29 | Orion Engineered Seals, Llc | Joint d'étanchéité à labyrinthe |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2109274A5 (fr) * | 1970-10-09 | 1972-05-26 | Sogev Ste Gle Du Vide | |
| US3849070A (en) * | 1972-09-25 | 1974-11-19 | Brewer S Unlimited Inc | Apparatus for and method of determining oxygen and carbon dioxide in sealed containers |
| US3960670A (en) * | 1975-09-02 | 1976-06-01 | Pflug Irving J | Method and apparatus for sterility monitoring |
| US4096734A (en) * | 1977-01-21 | 1978-06-27 | Ralston Purina Company | Method of removing headspace volatiles and analysis thereof |
| US4133736A (en) * | 1977-11-22 | 1979-01-09 | Iijima Products M.F.G. Co., Ltd. | Apparatus for determining an oxygen content |
| FR2711803A1 (fr) * | 1993-10-27 | 1995-05-05 | Tech Conservation Prod Ag Cent | Dispositif de contrôle en continu de la stabilité de boîte de conserve. |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3186232A (en) * | 1962-05-28 | 1965-06-01 | Pure Oil Co | Apparatus for obtaining fluid samples from blisters |
| DE3439778A1 (de) * | 1984-09-22 | 1986-04-03 | Friedrich von 7891 Hohentengen Amelen | Vorrichtung und verfahren zur entnahme von gas aus dosen o.dgl. packungen |
| US5363707A (en) * | 1992-05-01 | 1994-11-15 | Hewlett-Packard Company | Headspace sampling system |
| US5822951A (en) * | 1997-11-06 | 1998-10-20 | Modern Controls, Inc. | Apparatus and method for sampling gas in product packages |
-
1996
- 1996-06-05 FR FR9606922A patent/FR2749661B1/fr not_active Expired - Fee Related
-
1997
- 1997-06-02 WO PCT/FR1997/000957 patent/WO1997046875A1/fr not_active Ceased
- 1997-06-02 DE DE19780555T patent/DE19780555C2/de not_active Expired - Fee Related
- 1997-06-02 AU AU30976/97A patent/AU3097697A/en not_active Abandoned
- 1997-06-02 US US09/011,394 patent/US6141940A/en not_active Expired - Fee Related
- 1997-06-02 GB GB9802371A patent/GB2319610B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2109274A5 (fr) * | 1970-10-09 | 1972-05-26 | Sogev Ste Gle Du Vide | |
| US3849070A (en) * | 1972-09-25 | 1974-11-19 | Brewer S Unlimited Inc | Apparatus for and method of determining oxygen and carbon dioxide in sealed containers |
| US3960670A (en) * | 1975-09-02 | 1976-06-01 | Pflug Irving J | Method and apparatus for sterility monitoring |
| US4096734A (en) * | 1977-01-21 | 1978-06-27 | Ralston Purina Company | Method of removing headspace volatiles and analysis thereof |
| US4133736A (en) * | 1977-11-22 | 1979-01-09 | Iijima Products M.F.G. Co., Ltd. | Apparatus for determining an oxygen content |
| FR2711803A1 (fr) * | 1993-10-27 | 1995-05-05 | Tech Conservation Prod Ag Cent | Dispositif de contrôle en continu de la stabilité de boîte de conserve. |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2749661A1 (fr) | 1997-12-12 |
| GB9802371D0 (en) | 1998-04-01 |
| FR2749661B1 (fr) | 1998-08-14 |
| DE19780555C2 (de) | 2000-04-20 |
| US6141940A (en) | 2000-11-07 |
| GB2319610A (en) | 1998-05-27 |
| AU3097697A (en) | 1998-01-05 |
| DE19780555T1 (de) | 1998-08-20 |
| GB2319610B (en) | 2000-05-03 |
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