DE2539949C3 - Safety device on liquid containers - Google Patents
Safety device on liquid containersInfo
- Publication number
- DE2539949C3 DE2539949C3 DE2539949A DE2539949A DE2539949C3 DE 2539949 C3 DE2539949 C3 DE 2539949C3 DE 2539949 A DE2539949 A DE 2539949A DE 2539949 A DE2539949 A DE 2539949A DE 2539949 C3 DE2539949 C3 DE 2539949C3
- Authority
- DE
- Germany
- Prior art keywords
- container
- gas
- wall
- liquid
- aprons
- 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.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/48—Arrangements of indicating or measuring devices
- B65D90/50—Arrangements of indicating or measuring devices of leakage-indicating devices
- B65D90/501—Arrangements of indicating or measuring devices of leakage-indicating devices comprising hollow spaces within walls
- B65D90/503—Arrangements of indicating or measuring devices of leakage-indicating devices comprising hollow spaces within walls under pressure or vacuum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/01—Shape
- F17C2201/0104—Shape cylindrical
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/03—Orientation
- F17C2201/032—Orientation with substantially vertical main axis
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/05—Size
- F17C2201/052—Size large (>1000 m3)
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/01—Reinforcing or suspension means
- F17C2203/011—Reinforcing means
- F17C2203/012—Reinforcing means on or in the wall, e.g. ribs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/03—Thermal insulations
- F17C2203/0304—Thermal insulations by solid means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
- F17C2203/0602—Wall structures; Special features thereof
- F17C2203/0612—Wall structures
- F17C2203/0614—Single wall
- F17C2203/0619—Single wall with two layers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
- F17C2203/068—Special properties of materials for vessel walls
- F17C2203/0682—Special properties of materials for vessel walls with liquid or gas layer
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/03—Mixtures
- F17C2221/032—Hydrocarbons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/03—Mixtures
- F17C2221/032—Hydrocarbons
- F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0146—Two-phase
- F17C2223/0153—Liquefied gas, e.g. LPG, GPL
- F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
- F17C2223/033—Small pressure, e.g. for liquefied gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/04—Indicating or measuring of parameters as input values
- F17C2250/0404—Parameters indicated or measured
- F17C2250/043—Pressure
- F17C2250/0434—Pressure difference
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/04—Indicating or measuring of parameters as input values
- F17C2250/0486—Indicating or measuring characterised by the location
- F17C2250/0491—Parameters measured at or inside the vessel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/06—Controlling or regulating of parameters as output values
- F17C2250/0605—Parameters
- F17C2250/0642—Composition; Humidity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/06—Controlling or regulating of parameters as output values
- F17C2250/0605—Parameters
- F17C2250/0678—Position or presence
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/03—Dealing with losses
- F17C2260/031—Dealing with losses due to heat transfer
- F17C2260/033—Dealing with losses due to heat transfer by enhancing insulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/03—Dealing with losses
- F17C2260/035—Dealing with losses of fluid
- F17C2260/036—Avoiding leaks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/03—Dealing with losses
- F17C2260/035—Dealing with losses of fluid
- F17C2260/038—Detecting leaked fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/04—Reducing risks and environmental impact
- F17C2260/042—Reducing risk of explosion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2270/00—Applications
- F17C2270/01—Applications for fluid transport or storage
- F17C2270/0134—Applications for fluid transport or storage placed above the ground
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C3/00—Vessels not under pressure
- F17C3/02—Vessels not under pressure with provision for thermal insulation
- F17C3/022—Land-based bulk storage containers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Description
Isolierungsmaterial gefallt, um die Wärmeübertragung durch Konvektion zu vermindern.Insulation material fell to the heat transfer to reduce by convection.
Durch die vorgeschlagenen Maßnahmen wird der Zutritt der eingelagerten Flüssigkeit an die Behälterwand durch die gebildete Gasschicht verhindert und damit die Isolierwirkung gegenüber der Umgebungsatmosphäre wesentlich verbessert Durch die verringerte Verdampfungsrate der eingelagerten kryogenen Flüssigkeit werden erhebliche wirtschaftliche Vorteile durch die dann in geringerem Maße notwendige Rückverflüssigung erzieltThe proposed measures prevent the stored liquid from reaching the container wall prevented by the gas layer formed and thus the insulating effect against the ambient atmosphere significantly improved due to the reduced evaporation rate of the stored cryogenic liquid there are considerable economic advantages due to the reliquefaction, which is then necessary to a lesser extent achieved
Die Überwachung der Behälterwandung auf Dichtheit erfolgt in analoger Weise wie im Hauptpatent dadurch, daß jeder Schürze zwei Meßstellen zugeordnet werden, von denen die eine den im Raum zwischen der Behälterwand und der Schürze herrschenden Gasdruck und die andere den an dem unteren Ende der Schürze bestehenden hydrostatischen Druck auf ein Differenzmanomcter überträgtThe monitoring of the container wall for leaks takes place in a manner analogous to that in the main patent in that two measuring points are assigned to each apron one of which is the gas pressure prevailing in the space between the container wall and the skirt and the other, the hydrostatic pressure existing at the lower end of the skirt on a differential manometer transmits
Beim Eintritt einer Leckage wird diese im Differenzmanometer durch die damit verbundene Druckänderung angezeigt und/oder durch die in dem Haup'pateni erwähnten Signaleinrichtungen gemeldetIf a leak occurs, this is shown in the differential manometer indicated by the associated pressure change and / or by the in the main'pateni mentioned signaling devices reported
Dadurch, daß in die von den einzelnen Schürzen gebildeten Zwischenräume gesonderte, über den Umfang des Behälters verteilte Leitungen vorgesehen werden, durch die Fremdgas zuführbar ist, kann beim Eintritt einer Leckage der Austritt von Behälterflüssigkeit unterbunden werden, wenn der ursprüngliche Gasdruck wiederhergestellt und aufrechterhalten wird.The fact that in the spaces formed by the individual aprons separate, over the circumference of the container distributed lines are provided through which foreign gas can be supplied, can at Occurrence of a leak, the exit of the container liquid can be prevented when the original Gas pressure is restored and maintained.
Wird bei kryogenen Lagerflüssigkeiten durch die vorgesehenen oder zusätzlich angebrachten Leitungen ein tiefkaltes inertes Gas mit gegenüber der Behälterflüssigkeit niedrigerem Siedepunkt z. B. flüssiger Stickstoff bei eingelagertem Flüssigmethan zugeführt, kann bei einem eventuellen Brand durch die eintretende Unterkühlung der Lagerflüssigkeit die Verdampfungsrate herabgesetzt und eine Brandbekämpfung erleich tert werden.Used in the case of cryogenic storage liquids through the provided or additionally attached lines a cryogenic inert gas with a lower boiling point than the container liquid z. B. more fluid Nitrogen supplied with stored liquid methane, can in the event of a fire by the entering Undercooling of the storage liquid reduces the evaporation rate and makes fire fighting easier be tert.
In der Zeichnung, die einen Teillängsschnitt eines erfindungsgcmäßen Behälters 1 dargestellt sind mit 2 die Behälterwand, mit 3 die an der Innenwand des Behälters angebrachten Versteifungsringe bezeichnet An den Versteifungsringen 3 sind die Schürzen 4 und die Trennwände 5 gasdicht befestigt Von jedem Versteifungsring 3 erstrecken sich nach oben die Trennwände 5 und nach unten die Schürzen 4, die zylindrisch oder mit nach unten kleineren Durchmesser ausgebildet sein können. Zwischen den Trennwänden 5 und der Behälterwand 2 ist Isoliermaterial 6 zur Verringerung der Wärmekonvektion eingelagert, das einen möglichst großen Teil der Behälterinnenwand abdecken soll.In the drawing, which shows a partial longitudinal section of a container 1 according to the invention, is represented by 2 the container wall, with 3 denotes the stiffening rings attached to the inner wall of the container The aprons 4 and the partition walls 5 are attached to the stiffening rings 3 in a gas-tight manner. From each stiffening ring 3 extend upwards the partition walls 5 and downwards the aprons 4, which are cylindrical or with can be formed downwardly smaller diameter. Between the partitions 5 and the Container wall 2 is insulating material 6 stored to reduce the heat convection, the one as possible should cover a large part of the inner wall of the container.
Werden keine Versteifungsringe benützt so werden die abgewinkelten Schürzen 4 unmittelbar an der Behälterwand 2 gasdicht befestigt und können als Ersatz für Versteifungsringe dienen. Die Trennwände 5 werden in diesem Falle mit der Schürze 4 verbunden. Die unteren Enden der Schürzen 4 enden zweckmäßig möglichst unmittelbar oberhalb der Versteifungs*nge 3 bzw. bei Wegfall der Versteifungsringe 3 oberhalb der Anschlußstellen der Schürzen 4 an der Behälterwand 2. Damit wird erreicht daß die über die Versteifungsringe 3 bzw. durch die Schürze 4 nicht vermeidbare von außen eintreten^« Wärmezufuhr ein Verdampfen von Lagerflüssigkeit vorwiegend an den Stellen bewirkt die von den jeweils darüber Fegenden Schürzen abgedeckt sind. Damit wird bei kryogenen Lagerflüssigkeiten der für dieIf no stiffening rings are used, they are angled aprons 4 attached directly to the container wall 2 in a gas-tight manner and can be used as a replacement for Stiffening rings serve. The partition walls 5 are connected to the apron 4 in this case. The lower Ends of the aprons 4 expediently end as directly as possible above the stiffening 3 or at Elimination of the stiffening rings 3 above the connection points of the aprons 4 on the container wall 2. Thus it is achieved that the unavoidable from the outside via the stiffening rings 3 or by the apron 4 enter ^ «supply of heat an evaporation of storage liquid mainly at the points of the aprons sweeping over them are covered. In the case of cryogenic storage liquids, this means that the
keine Leckage in dem jeweiligen Schürzenbereich auftrittno leakage occurs in the respective apron area
Schürzenbereich der Gasdruck und der zugehörige hydrostatische Druck zu den Differenzmanometern 9 übertragen. Die Leitungen 10 dienen zur Zuführung von Fremdgas in den Raum der einzelnen Schürzen.Apron area the gas pressure and the associated hydrostatic pressure for the differential manometers 9 transfer. The lines 10 are used to supply foreign gas into the space of the individual aprons.
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2539949A DE2539949C3 (en) | 1972-12-19 | 1975-09-09 | Safety device on liquid containers |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2262099 | 1972-12-19 | ||
DE2539949A DE2539949C3 (en) | 1972-12-19 | 1975-09-09 | Safety device on liquid containers |
Publications (3)
Publication Number | Publication Date |
---|---|
DE2539949A1 DE2539949A1 (en) | 1977-03-17 |
DE2539949B2 DE2539949B2 (en) | 1980-09-18 |
DE2539949C3 true DE2539949C3 (en) | 1981-05-27 |
Family
ID=5955904
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2539949A Expired DE2539949C3 (en) | 1972-12-19 | 1975-09-09 | Safety device on liquid containers |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2539949C3 (en) |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2262099C2 (en) * | 1972-12-19 | 1974-09-19 | Otto Dipl.-Ing. 7000 Stuttgart Rupf-Bolz | Safety device on liquid containers |
-
1975
- 1975-09-09 DE DE2539949A patent/DE2539949C3/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2539949A1 (en) | 1977-03-17 |
DE2539949B2 (en) | 1980-09-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OD | Request for examination | ||
C3 | Grant after two publication steps (3rd publication) | ||
8340 | Patent of addition ceased/non-payment of fee of main patent |