EP0393061A1 - Movable refrigerated housing for foodstuff. - Google Patents
Movable refrigerated housing for foodstuff.Info
- Publication number
- EP0393061A1 EP0393061A1 EP88908704A EP88908704A EP0393061A1 EP 0393061 A1 EP0393061 A1 EP 0393061A1 EP 88908704 A EP88908704 A EP 88908704A EP 88908704 A EP88908704 A EP 88908704A EP 0393061 A1 EP0393061 A1 EP 0393061A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- enclosure
- gas
- refrigerated
- ejector
- air
- 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.)
- Granted
Links
- 230000008016 vaporization Effects 0.000 claims abstract description 35
- 238000009834 vaporization Methods 0.000 claims abstract description 33
- 239000003507 refrigerant Substances 0.000 claims abstract description 23
- 238000009434 installation Methods 0.000 claims abstract description 14
- 239000007787 solid Substances 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 238000002156 mixing Methods 0.000 claims abstract description 3
- 239000007789 gas Substances 0.000 claims description 57
- 238000000034 method Methods 0.000 claims description 13
- 238000000859 sublimation Methods 0.000 claims description 9
- 230000008022 sublimation Effects 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims description 2
- 235000012054 meals Nutrition 0.000 abstract description 4
- 239000003570 air Substances 0.000 description 28
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 26
- 229910002092 carbon dioxide Inorganic materials 0.000 description 12
- 239000001569 carbon dioxide Substances 0.000 description 12
- 238000001816 cooling Methods 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 2
- 235000011089 carbon dioxide Nutrition 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- QEVHRUUCFGRFIF-MDEJGZGSSA-N reserpine Chemical compound O([C@H]1[C@@H]([C@H]([C@H]2C[C@@H]3C4=C(C5=CC=C(OC)C=C5N4)CCN3C[C@H]2C1)C(=O)OC)OC)C(=O)C1=CC(OC)=C(OC)C(OC)=C1 QEVHRUUCFGRFIF-MDEJGZGSSA-N 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
- F25D3/10—Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air
- F25D3/105—Movable containers
Definitions
- the present invention relates to the generation of a flow rate of refrigerated gas, and in particular cold air, from a mass of a refrigerant in the sublimable solid state or liquid vaporizable at a temperature below lower than the desired temperature for the refrigerated gas. It relates more specifically to the application of the process for maintaining and homogenizing temperatures in mobile refrigerated enclosures containing food or other foodstuffs from a mass of carbon dioxide in solid form, known as carbon dioxide snow. , and in particular the refrigeration of the carts on board airplanes, trains or the like or containers of the same type intended to contain foodstuffs, in particular prepared meals intended to be served during the journey or after a some time, conservation. t
- the carriages are kept in air-conditioned reserves and individually connected to a refrigeration installation from which they must be disconnected for distribution, or they include a compartment intended to receive a charge of refrigerant material , blocks of ice or solid carbon dioxide, compartment in heat exchange contact with which the air of the refrigerated enclosure circulates by natural convection.
- the first solution has the drawback of requiring a refrigeration and air conditioning installation and of comprising numerous connections which must be disconnected before the carriages can be moved.
- the second solution does not have these drawbacks but the distribution of the cooling powers by the only natural convection which gives rise to currents
- T gaseous descending of low intensity leads to very strong inequalities in the temperatures prevailing in the different parts of the refrigerated enclosure with negative temperatures in the vicinity of the compartment containing this refrigerant, in particular when the latter is solid carbon dioxide which, at atmospheric pressure, vaporizes by sublimation at a temperature of around -79 'C.
- the object of the present invention is to remedy these drawbacks by creating in the refrigerated enclosure, from a reserve of refrigerant material vaporizing by releasing in said enclosure the refrigerating power of change of state, a flow rate forced refrigerated air which can be channeled for its homogeneous distribution in the different parts of the refrigerated enclosure without re ⁇ using a power source outside the re ⁇ refrigerated enclosure to ensure this forced circulation. It also aims to provide self-regulation of the flow rate and the temperature of the cooled air as a function of the ambient temperature of the refrigerated enclosure.
- REPLACEMENT SHEET shot of a mass of refrigerant in solid or liquid state in which one sublimates or vaporizes in a sealed vaporization enclosure said refrigerant and one uses the gas flow under pressure thus produced as flow driving a flow of gas to be managed through a gas ejector of the Venturi type, charac ⁇ terized in that the mixture of gas to be refrigerated and of drive gas leaving the gas ejector is sent to the enclosure to be refrigerated by a plurality of spray nozzles distributed throughout the said enclosure to be refrigerated.
- the refrigerant used in the process can be any substance in the solid or liquid state which sublimates or vaporizes at a low temperature with a large mass refrigerating capacity.
- carbon dioxide already used in such applications and which is therefore commercially available and of usual handling.
- Carbon dioxide • or dry ice vaporizes by sublimation at -79 ° C at atmospheric pressure with release of a cooling capacity of 177 h / kg (153 kcal / kg).
- a liquefied gas such as liquid a ⁇ nitrogen or liquid air.
- the subli ⁇ mation or vaporization of the refrigerant is assu ⁇ red by circulation in heat exchange contact with the mass of this material from the air in the enclosure to be managed.
- This circulation is preferably of the forced type in a coil in contact with the mass of fri ⁇ genogenic material, the forced circulation being ensured by the suction of the gas ejector.
- REPLACEMENT SHEET rée and its flow sucked by the ejector this flow itself being all the higher as the temperature of the refrigerated enclosure is higher. It is also possible to control the temperature of the outgoing gas flow by reducing, to a part of the air flow sucked in by the ejector, the flow of ambient air circulating in contact d 'heat exchange with the mass of fri ⁇ genogenic material or by limiting the flow rate of the entrainment gas to a fraction of the volume of gas vaporized from the refrigerant.
- the vaporized volume is subjected to heating by bringing it into heat exchange contact with the air of the refrigerated enclosure before it enters the drive ejector.
- the air of the vaporization enclosure is cryogenically dried before it passes through the vaporization coil of the refrigerant where the testant moisture can be deposited and a perfectly dry gas is admitted into the ejector entrainment, which avoids the risk of blockage of this organ by ice deposits.
- the air flow aspirated by the ejector and previously brought into heat exchange contact with the wall of the vaporization enclosure is adjustable and can be short-circuited so as to be brought directly to the entry of the gas ejector.
- the refrigeration installation for implementing the process according to the invention essentially comprises a closed vaporization enclosure capable of receiving
- REPLACEMENT SHEET 5 see a charge of refrigerant in the liquid or solid state and withstand a pressure, an ejector of the Venturi type ensuring a drive of a much greater gas flow starting from a gas engine flow under pressure and a pipe connecting said enclosed vaporization enclosure to said ejector in order to supply to the latter the gases released into the enclosure by vaporization or sublimation of the refrigerant as a debit of pressurized gas engine and is characterized in that the outlet of the ejector is connected to a sheath the length of which is developed in the refrigerated enclosure, this sheath comprising over its length outlet orifices constituted by nozzles to distribute the flow of refrigerated gas in the volume of said refrigerated enclosure and ensuring the mixing of the air of the latter by the gas jets leaving said nozzles.
- the closed vaporization enclosure contains a pipe in thermal exchange contact with the mass of refrigerant, this pipe being connected between the atmosphere of the refrigerated enclosure and the suction of the drive ejector.
- the pipe connecting the closed vaporization enclosure to the ejector comprises a part forming a heat exchanger between the gas which circulates there and the atmosphere of the refrigerated enclosure.
- the air from the refrigerated enclosure is channeled between said enclosure and the suction inlet of the ejector so as to be in heat exchange contact with the wall of the vapor enclosure. ⁇ sation.
- the air ducting of the refrigerated enclosure in contact with heat exchange is ⁇ ⁇ iB W BB PLACE ⁇ MT provided by means of a thermostatic device such as a thermostatic valve sensitive to the temperature of the refrigerated enclosure opening when the minimum temperature is reached in this enclosure, is previewed.
- a thermostatic device such as a thermostatic valve sensitive to the temperature of the refrigerated enclosure opening when the minimum temperature is reached in this enclosure, is previewed.
- the pipe bringing the air from the enclosure into heat exchange contact with the wall of the closed vaporization enclosure.
- the installation then comprises a second thermostatic device for short-circuiting the air of the refrigerated enclosure in order to lead it directly to the inlet of the gas ejector.
- a calibrated valve is pre ⁇ seen on the closed vaporization enclosure, the calibration of the valve corresponding to the pressure limiting the flow of drive gas to the value ensuring the supply of cooling power just necessary to maintain the internal temperature of the refrigerated enclosure at a minimum prefixed value.
- This calibrated valve * also provides security against accidental overpressure in the vaporization enclosure which is the only pressurized part of the installation. It is also possible to regulate the flow rate of the drive gas by a thermostatic valve sensitive to the temperature inside the refrigerated enclosure which puts the vaporization enclosure closed to the exhaust when the minimum temperature of the enclosure is reached.
- Figure 1 is a schematic sectional view through II of Figure 2 of a refrigerated carriage comprising an installation according to the invention
- Figure 2 is a horizontal sectional view through II-II of figu ⁇ re 1
- Figure 3 is a simplified schematic view in longitudinal section of a variant of the cha-
- the reference 1 designates generally the insulating walls of the container of the trolley in which the meal trays are stored in a vertical stack. In the volume of this container and at its upper part is produced, by a separating wall. 2, a separate compartment 3 in which is housed the closed vaporization enclosure or tank 4 constituted by a box with a cover. sealing 5.
- a coil 6 In the closed vaporization enclosure 4 and above its bottom is disposed a coil 6 whose tube lengths form a grid on which are placed the pieces of solid carbon dioxide 7.
- the coil is connected between an opening 8 opening into compartment 3 and the suction of a fan ejector 9 of the Venturi type Couri effect which expels air, sucked through the coil 6 from compartment 3, in a duct 10 leading to nozzles 11 distributed throughout the container.
- Reference 14 designates a hearing by which the atmosphere of the container is admitted into compartment 3.
- the meal trays or other foodstuffs to be refrigerated are placed in the cart and blocks of carbon dioxide.
- FIRE. L E DE G AGEMENT solid 7 are placed in the vaporization enclosure 4, the cover 5 of which is tightly closed.
- the blocks 7 sublime by borrowing calories from the atmosphere of the enclosure 4 by producing carbon dioxide at a temperature of -79 "C.
- the pressure in the vaporization enclosure 4 is established during the operating at a value of about 1.5 to 2 bars (150 to 200 k Pa).
- the CO 2 gas produced in the enclosure 4 escapes through the pipe 12 and heats up in the coil 13 by borrowing calories from the air in the container admitted by the air outlet 14 into the compartment 3.
- the air sucked into the crazy compartment 3 provides calories to solid carbon dioxide blocks 7 whose sublimation speed, therefore the release of cooling power is therefore a function of the temperature of the air sucked into compartment 3 and of the flow rate ensured by 1 'é ector-ventilator 9, flow rate which is also a function of the speed of sublimation of the carbon dioxide.
- the air from the outside of the container sucked in by the outlet 14 is cooled by exchange on the coil 13 and then by exchange with the enclosure 4 by circulating in the compartment 3 in contact with the walls of the latter. Following these two exchanges, it abandons most of its moisture in the form of condensation which turns to frost.
- the air cools even more by circulating in the serpentine 6 then mixes with the sublimed carbon dioxide and reheated in the coil 13 to give a mixture whose volume corresponds to 6 to 12 times the gas volume
- REPLACEMENT SHEET resulting from the sublimation of blocks 7, under a pressure of 200 Pa and at a temperature of only a few degrees below zero.
- This gas volume projected by the nozzles 11 ensures an additional intense drive of the ambient air of the container, which makes it possible to achieve in the latter an absolutely homogeneous distribution of temperatures which vary from +. 1 * C around the average temperature.
- a calibrated valve not shown, which ensures in this enclosure a constant pressure therefore a constant flow of the motor flow alimen ⁇ as 1 ejector-fan 9 and consequently of the driven flow or a thermostatic valve sensitive to the temperature which allows the direct escape of the gases of subli ⁇ mation in the enclosure of the container when the average temperature drops below the value of setting, e direct exhaust which, once again, reduces the flow rate of the ejector-fan 9 therefore the air flow rate in the serpen ⁇ tin 6 and the speed of sublimation of the blocks 7.
- a second thermostatic valve 16 mounted unlike the valve 15, puts the tank 4 short-circuited to bring the air to be refrigerated directly at the inlet of the ejector gas 9, so as to avoid an excessively high temperature of the blown flow which risks bringing about a freezing of the food products contained in the refrigerated enclosure, in particular when the carriage is in a cooler environment ⁇ than normally.
- the inlet of the hearing 14 with a thermostatic valve 15 sensitive to the temperature of the refrigerated enclosure 1 so as to open when a minimum temperature is reached in this enclosure 1.
- a second thermostatic valve 16 mounted unlike the valve 15, puts the tank 4 short-circuited to bring the air to be refrigerated directly at the inlet of the ejector gas 9, so as to avoid an excessively high temperature of the blown flow which risks bringing about a freezing
- REPLACEMENT SHEET tray 4 is provided with heat exchange fins arranged on its outer face so as to increase its useful volume.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
Abstract
La présente invention concerne la génération d'un débit de gaz réfrigéré à partir d'une masse de matière frigorigène à l'état solide ou liquide en sublimant ou vaporisant dans une enceinte de vaporisation étanche (4) ladite matière frigorigène (7) et on utilise le débit gazeux sous pression ainsi produit comme flux d'entraînement (9) d'un débit du gaz à réfrigérer à travers un éjecteur à gaz (9) du type Venturi. L'installation selon l'invention est caractérisée en ce que la sortie de l'éjecteur (9) est branchée sur une gaine (10) dont la longueur est développée dans l'enceinte réfrigérée, cette gaine comportant sur sa longueur des orifices de sortie constitués par des buses (11) pour répartir le débit de gaz réfrigéré dans le volume de ladite enceinte réfrigérée et assurer le brassage de l'air de cette dernière par les jets de gaz sortant desdites buses. L'invention est applicable notamment aux chariots réfrigérés pour les repas embarqués à bord des avions.The present invention relates to the generation of a flow of refrigerated gas from a mass of refrigerant material in the solid or liquid state by sublimating or vaporizing in a sealed vaporization chamber (4) said refrigerant material (7) and uses the pressurized gas flow thus produced as drive flow (9) of a gas flow to be cooled through a gas ejector (9) of the Venturi type. The installation according to the invention is characterized in that the outlet of the ejector (9) is connected to a sheath (10) the length of which is developed in the refrigerated enclosure, this sheath comprising along its length outlet orifices constituted by nozzles (11) for distributing the flow of refrigerated gas in the volume of said refrigerated enclosure and ensuring the mixing of the air in the latter by the jets of gas emerging from said nozzles. The invention is applicable in particular to refrigerated trolleys for meals carried on board aircraft.
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT88908704T ATE101256T1 (en) | 1987-10-02 | 1988-09-30 | MOBILE REFRIGERATED CELL FOR FOOD. |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8713668 | 1987-10-02 | ||
FR8713668A FR2621386B1 (en) | 1987-10-02 | 1987-10-02 | METHOD FOR GENERATING A REFRIGERATED GAS FLOW AND ITS APPLICATION FOR MAINTAINING AND HOMOGENIZING TEMPERATURES IN MOBILE REFRIGERATED ENCLOSURES FOR FOODSTUFFS OR THE LIKE |
PCT/FR1988/000484 WO1989003008A1 (en) | 1987-10-02 | 1988-09-30 | Movable refrigerated housing for foodstuff |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0393061A1 true EP0393061A1 (en) | 1990-10-24 |
EP0393061B1 EP0393061B1 (en) | 1994-02-02 |
Family
ID=9355483
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88908704A Expired - Lifetime EP0393061B1 (en) | 1987-10-02 | 1988-09-30 | Movable refrigerated housing for foodstuff |
Country Status (7)
Country | Link |
---|---|
US (1) | US5074126A (en) |
EP (1) | EP0393061B1 (en) |
JP (1) | JPH03501877A (en) |
AU (1) | AU2537088A (en) |
DE (1) | DE3887690T2 (en) |
FR (1) | FR2621386B1 (en) |
WO (1) | WO1989003008A1 (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5323622A (en) * | 1993-04-21 | 1994-06-28 | Cryo-Trans, Inc. | Multi-temperature cryogenic refrigeration system |
US5495726A (en) * | 1993-09-24 | 1996-03-05 | Daewoo Electronics Co., Ltd. | Mechanism for cooling a fresh food compartment of a refrigerator |
GB2284613A (en) * | 1993-12-13 | 1995-06-14 | Boc Group Plc | Liquefied nitrogen and oxygen as chilling agent |
FR2721382B1 (en) * | 1994-06-21 | 1996-08-02 | Hydrogas France Sa | Method for diffusing frigories in an isothermal enclosure and diffusion device. |
US5660057A (en) * | 1996-07-30 | 1997-08-26 | Tyree, Jr.; Lewis | Carbon dioxide railroad car refrigeration system |
US5979173A (en) * | 1996-07-30 | 1999-11-09 | Tyree; Lewis | Dry ice rail car cooling system |
DE19743131A1 (en) * | 1997-09-30 | 1999-04-08 | Messer Griesheim Gmbh | Device for temperature sensitive goods |
US6422031B1 (en) | 2001-08-15 | 2002-07-23 | Maytag Corporation | Refrigeration appliance with impingement cooling system |
US7703835B2 (en) | 2006-08-11 | 2010-04-27 | Weeda Dewey J | Secondary door and temperature control system and method |
IT1393121B1 (en) * | 2009-03-05 | 2012-04-11 | Air Liquide Italia S P A | METHOD AND PLANT FOR THE REMOVAL OF DISSOLVED OXYGEN AND MAINTENANCE IN CONTROLLED GRAPE ATMOSPHERE, OR OTHER VEGETABLE PRODUCTS, IN MECHANICAL MEANS OF COLLECTION, TRANSPORT AND STORAGE |
EP2781862A1 (en) * | 2013-03-19 | 2014-09-24 | Socamel Technologies | Refrigerated carriage with an embedded device for cooling and maintaining cold |
FI126710B (en) * | 2015-07-10 | 2017-04-13 | Vakava Tech Ltd Oy | Device comprising a sealed container for dry ice |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE392882A (en) * | ||||
FR756085A (en) * | 1933-05-24 | 1933-12-04 | Ici Ltd | Method and apparatus for refrigerating, storing or transporting perishable materials |
DE626577C (en) * | 1934-01-04 | 1936-02-28 | Kuehltransit Verkehrs Akt Ges | Refrigerated vehicle with a carbonic acid ice container |
US2167667A (en) * | 1937-12-27 | 1939-08-01 | Western Products Company | Means for refrigeration |
US2255356A (en) * | 1939-12-21 | 1941-09-09 | Joseph E Harris | Refrigerating apparatus |
US2580210A (en) * | 1949-08-22 | 1951-12-25 | Joseph S Zuckerman | Self-contained cooler using dry ice refrigerant |
FR1166555A (en) * | 1956-02-27 | 1958-11-13 | Method and apparatus for refrigerating, storing and transporting perishable materials | |
US3174299A (en) * | 1962-03-19 | 1965-03-23 | Elmwood Liquid Products Inc | Refrigeration system employing a liquified gas |
US3163022A (en) * | 1963-01-21 | 1964-12-29 | Z Z Corp | Refrigeration system employing expendable refrigerant |
US3385073A (en) * | 1966-10-06 | 1968-05-28 | Cryo Therm Inc | Refrigeration system for shipping perishable commodities |
US3447334A (en) * | 1967-12-07 | 1969-06-03 | Garrett Corp | Environmental system for preservation of perishables |
DE2304718A1 (en) * | 1973-01-31 | 1974-08-01 | Burger Eisenwerke Ag | REFRIGERATION CONTAINER |
US4096707A (en) * | 1976-10-18 | 1978-06-27 | Taylor William P | Portable refrigeration machine |
DE3008355A1 (en) * | 1980-03-05 | 1981-09-17 | Lange Formenbau, 2000 Hamburg | Refrigerator for aircraft galleys - using dry ice vapours passed through capillary nozzle and venturi tubes |
CH653121A5 (en) * | 1981-10-16 | 1985-12-13 | Bucher Heinrich Fa | REFRIGERATED CONTAINER. |
US4576010A (en) * | 1983-10-18 | 1986-03-18 | Nhy-Temp, Inc. | Cryogenic refrigeration control system |
HUT41108A (en) * | 1984-09-17 | 1987-03-30 | Energiagazdalkodasi Intezet | Method and apparatus for applying solid-state carbon dioxide over and above controlled cooling output |
US4593536A (en) * | 1985-06-21 | 1986-06-10 | Burlington Northern Railroad Company | Carbon dioxide refrigeration system |
-
1987
- 1987-10-02 FR FR8713668A patent/FR2621386B1/en not_active Expired - Fee Related
-
1988
- 1988-09-30 JP JP63508156A patent/JPH03501877A/en active Pending
- 1988-09-30 DE DE3887690T patent/DE3887690T2/en not_active Expired - Fee Related
- 1988-09-30 WO PCT/FR1988/000484 patent/WO1989003008A1/en active IP Right Grant
- 1988-09-30 EP EP88908704A patent/EP0393061B1/en not_active Expired - Lifetime
- 1988-09-30 AU AU25370/88A patent/AU2537088A/en not_active Abandoned
- 1988-09-30 US US07/490,614 patent/US5074126A/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO8903008A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE3887690T2 (en) | 1994-05-26 |
DE3887690D1 (en) | 1994-03-17 |
AU2537088A (en) | 1989-04-18 |
FR2621386B1 (en) | 1990-02-09 |
JPH03501877A (en) | 1991-04-25 |
US5074126A (en) | 1991-12-24 |
EP0393061B1 (en) | 1994-02-02 |
WO1989003008A1 (en) | 1989-04-06 |
FR2621386A1 (en) | 1989-04-07 |
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