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
  • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
  • B65D77/04—Articles or materials enclosed in two or more containers disposed one within another
  • B65D77/0446—Articles or materials enclosed in two or more containers disposed one within another the inner and outer containers being rigid or semi-rigid and the outer container being of polygonal cross-section not formed by folding or erecting one or more blanks
  • B65D77/0453—Articles or materials enclosed in two or more containers disposed one within another the inner and outer containers being rigid or semi-rigid and the outer container being of polygonal cross-section not formed by folding or erecting one or more blanks the inner container having a polygonal cross-section
  • B65D77/0466—Articles or materials enclosed in two or more containers disposed one within another the inner and outer containers being rigid or semi-rigid and the outer container being of polygonal cross-section not formed by folding or erecting one or more blanks the inner container having a polygonal cross-section the containers being mounted on a pallet
• • 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
  • B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
  • B65D25/38—Devices for discharging contents
  • B65D25/40—Nozzles or spouts
  • B65D25/42—Integral or attached nozzles or spouts
• • 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
  • B65D47/00—Closures with filling and discharging, or with discharging, devices
  • B65D47/04—Closures with discharging devices other than pumps
  • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
• • 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
  • B65D59/00—Plugs, sleeves, caps, or like rigid or semi-rigid elements for protecting parts of articles or for bundling articles, e.g. protectors for screw-threads, end caps for tubes or for bundling rod-shaped articles
  • B65D59/02—Plugs
• • 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
  • B65D2588/00—Large container
  • B65D2588/54—Large container characterised by means facilitating filling or emptying
• • 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
  • B65D2590/00—Component parts, details or accessories for large containers
  • B65D2590/54—Gates or closures
  • B65D2590/542—Gates or closures special sealing means or means for improving sealing
• • 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
  • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
  • B65D77/04—Articles or materials enclosed in two or more containers disposed one within another
  • B65D77/0446—Articles or materials enclosed in two or more containers disposed one within another the inner and outer containers being rigid or semi-rigid and the outer container being of polygonal cross-section not formed by folding or erecting one or more blanks
  • B65D77/0453—Articles or materials enclosed in two or more containers disposed one within another the inner and outer containers being rigid or semi-rigid and the outer container being of polygonal cross-section not formed by folding or erecting one or more blanks the inner container having a polygonal cross-section

Definitions

• the invention relates to a container for the transport and storage of liquids, comprising an inner container made of plastic for holding liquid and an outer container made of plastic with a rigid bottom, a rigid shell and a rigid top.
• IBCs Intermediate Bulk Containers
• nozzle and dip tube a container that can be filled into and emptied from the inner container via a nozzle and dip tube.
• Such containers are frequently used for flammable, highly toxic, high-purity, and highly acidic liquids, for example, in the semiconductor industry.
• a single-use and reusable container in which a filling nozzle is integrally formed on the upper surface of an inner container, the end section of which projects outwards onto the top surface of the outer container.
• the filling nozzle is held in an opening in the rigid top surface by means of a slotted clamping ring, with the edge of the opening in the top surface resting against the upper surface of the inner container.
• the filling nozzle is closed with a screw cap.
• the object of the invention is to provide a container for the transport and storage of liquids which is simple in design and improves handling when filling and emptying the inner container.
• the nozzle which is formed integrally with the inner container, has an external thread and an internal thread.
• a clamping washer with an internal thread can be screwed onto the external thread of the nozzle, thereby clamping the top of the container at the edge of its opening.
• the nozzle is fixed to the rigid top and cannot change its position relative to the outer container, even if deformation occurs in the inner container due to pressure differences or a changing fill level. This facilitates handling during filling and emptying and prevents the risk of spillage of problematic liquids.
• the invention includes a screw locking mechanism that interacts with the external thread of the nozzle and the internal thread of the clamping washer and is designed to prevent unintentional loosening of the clamping washer and nozzle. This measure also increases the safety of the container, as it prevents the screw connection from loosening or coming undone due to vibrations during transport or when unscrewing the sealing plug.
• At least the rigid top layer consists of Electrically conductive plastic.
• the conductivity is achieved, for example, by adding electrically conductive carbon black or aluminum particles to the plastic.
• the electrical conductivity is adjusted to dissipate any electrical charges that may arise during filling and emptying of the inner container due to static electricity.
• the screw connection between the top and the inner container advantageously provides a triple function: firstly, the precise, fixed positioning of the pipe fitting relative to the outer container; secondly, securing the top against unintentional detachment from the fitting; and thirdly, preventing hazards from electrical discharges.
• an electrically insulating sealing ring is arranged between the pipe receptacle and the nozzle, and that the pipe receptacle, made of electrically conductive plastic, includes an electrically conductive contact element that is electrically connected to the clamping disc.
• a sealing ring for example made of TPE (thermoplastic elastomer), seals the inner container against the outside environment, preventing liquid from entering.
• the electrically conductive contact element bridges the electrically insulating seal, thus ensuring continuous electrical conductivity between the pipe receptacle, clamping disc, and top surface, further reducing the risk of spontaneous electrical discharge.
• Another advantageous embodiment is characterized by the presence of an anti-rotation device that interacts with the contact element, the pipe receptacle, and the clamping disc, and is designed to prevent relative rotation of the pipe receptacle and the clamping disc.
• This anti-rotation device secures the pipe receptacle to the clamping disc.
• This clamping disc is secured against unintentional loosening by the aforementioned screw locking device. This means that even if a sealing plug is firmly seated in the pipe receptacle, for example, because it is screwed in very tightly or the threaded connection has become rigidly hardened due to deformation, the pipe receptacle will not move when this sealing plug is unscrewed, thus improving the safety of the entire container.
• the device 24 comprises a clamping disc 36 with an internal thread 38, which can be screwed to the external thread 30 of the nozzle 28 during assembly, clamping the top 20 at the edge of its opening 34.
• the first locking element is designed as a projecting locking cam 40 on the lower circumference of the external thread 30 of the fitting 28, and the second locking element on the clamping disc 36 is designed as a locking cam 42 on the lower circumference of the internal thread 38.
• the design of the locking cam 40 on the core cylinder of the external thread 30 has the advantage that reliable locking occurs even with variations in the thickness of the top surface 20.
• a pipe receptacle 26 has an external thread 46 in its upper region, which can be screwed into the internal thread 32 of the nozzle 28.
• the pipe receptacle 26 supports the immersion tube 25, which is shown in a highly foreshortened form.
• a contact ring 50 made of electrically conductive plastic, rests on an end face 49 of the pipe receptacle 26.
• the contact ring 50 On its underside facing the pipe receptacle 26, the contact ring 50 has a first locking element 52, for example, a serrated locking mechanism. This locking element 52 interacts with a second locking element 54, also for example, a serrated locking mechanism, located on the end face 49.
• a sealing plug 56 with an external thread 58 serves to seal the inner container 22 in a liquid-tight manner.
• the external thread 58 is screwed into the internal thread 48 of the pipe receptacle 26.
• the contact ring 50 is locked in a fixed position by the first locking elements 52 and the second locking elements 54, so that the rotational position of the contact ring 50 and the tube holder 26 is unambiguously defined.
• the pitch of the locking elements 52, 54 defines the angular resolution for the rotational position of the contact ring 50. For example, a small tooth pitch of the locking teeth increases the angular resolution.
• FIG. 4 The figure shows further details in several partial illustrations, in particular how the contact ring 50 engages with the clamping disc 36.
• the lower part of the figure shows the device 24 in its assembled state.
• the middle part shows an enlarged view of section C.
• the upper part of the figure shows the contact ring 50 with the contact arms 60 and below it an enlarged view E of one contact arm 60.
• Each contact arm 60 contains a locking lug 66.
• This locking lug 66 engages in gaps 68 between adjacent locking cams 64, which form the fourth locking means along the circumference of the clamping disc 36.
• the contact ring 50 is made of flexible plastic material and is clicked onto the ring encompassing the locking cams 64, with the contact arms 60 engaging beneath the locking cams 64.
• the contact arms 60 overlap the ring of locking cams 64, and the contact ribs 66 engage in gaps 68 between the locking cams 64, thus fixing the rotational position of the contact ring 50.
• the external thread 58 of the sealing plug 56 is screwed onto the internal thread 48 of the pipe receptacle 26. This is achieved using, on the one hand, the anti-rotation device formed by the first locking element 52 on the contact ring 50 and the second locking element 54 on the pipe receptacle 26, as well as the third locking element 66 and the fourth locking element 64, and on the other hand, the screw locking device.
• first locking element 40 and the second locking element 42 when unscrewing the closure plug 56 counterclockwise, for example to fill or empty the inner container 22, unintentional loosening or detachment of the connection between the clamping disc 36 and the pipe holder 26 from the nozzle 28 is not possible. In this way, the position of the pipe holder 26 is clearly and precisely defined, and its rotational position relative to the pipe holder 26 cannot change, thus improving the handling and safety of the entire container.
• FIG. 5 Figure 1 shows a partial cross-section of the assembled device 24 for filling and/or emptying the inner container 22. Identical parts are labeled identically.
• the clamping disc 36 secures the top cover 20, with an annular, liquid-tight seal 68 providing a seal (for example, the seal 68 consists of a flat-molded thermoplastic elastomer).
• An electrically insulating sealing ring 70 (e.g., also made of thermoplastic elastomer) is arranged between the pipe receptacle 26 and the nozzle 28.
• the pipe receptacle 26, the clamping disc 36, and the top cover 20 are made of electrically conductive plastic for dissipating electrical charges.
• the inner container 22, made of HDPE, is electrically non-conductive. Therefore, the important contact element in the form of the contact ring 50 is required, which establishes the necessary electrically conductive connection between the pipe receptacle 26, via the clamping disc 36, and the top surface 20.
• the sealing plug 56 is screwed with its external thread 58 to the internal thread 48 of the pipe receptacle 26 and sealed liquid-tight by a further annular seal 72.
• the pipe receptacle 26 has a further internal thread 74. This internal thread 74 is firmly connected to an external thread of an adapter device (not shown) during filling and/or emptying of the inner container 22. This adapter device allows the liquid to be drawn from a tank or the liquid to be drawn to be supplied to another device.
• FIG. 6 Figure 1 shows a schematic representation as a cross-section through the nozzle 28 at the level of the detent cam 40 and the locking cam 42 of the clamping disc 36 in the screwed-in state (see Figure 2).
• Fig. 3 The locking cam 40 has a leading-edge 40a, a plateau section
• the locking cam 42 has a chamfer 42a, a plateau section 42b, and a locking lug 42c.
• the chamfers 40a and 42a slide over each other, with the locking cam 42 yielding elastically to the material of the fitting 28.
• the locking lug 42c springs into place after the plateau section 40b slides over the sloping edge 40c and locks in the opposite direction.
• the engagement of the locking lug 42c is perceptible to the operator, further improving handling.
• FIG. 7 Figure 1 shows another embodiment in which the contact element is designed as a contact ring 76 with tabs 78. Screws 80 engage in the threaded tabs 78, acting as fasteners, in gaps 68 between locking cams 64, thus establishing an electrical contact.
• the screws 80 can be made of electrically conductive plastic.
• the contact ring 76 can be designed as in the embodiment shown in Figure 2.
• Fig. 3 a ratchet mechanism and the tube holder 26 also include a ratchet mechanism, so that an exact angular position can be set when locking the contact ring 76 and the tube holder 26 to each other.
• FIG. 8 Figure 1 shows another embodiment, wherein tabs 78 are formed at the edge together with the pipe holder 26 and are electrically conductive.
• the screws 80 can be brought into electrically and mechanically resilient contact with the surface of the electrically conductive clamping disc 36 at their respective tips.
• the tip of each screw 80 engages in the gap 68 between adjacent locking cams 64.
• Fig. 8 Several coding holes 82 are visible. When connecting the pipe fitting 26 to the adapter device during filling/emptying, corresponding coding pins engage in these holes and prevent incorrect operation.
• Fig. 9 shows details of the grid teeth of contact ring 50 and tube holder 26 (see also Fig. 3
• the first locking element on the contact ring 50, designated 52 comprises a ring of projecting locking teeth 52a
• the second locking element on the circumference of the tube receptacle 26, designated 54 comprises a further ring of projecting Locking teeth 54a.
• the opposing locking teeth 52a, 54a engage in the recesses of adjacent teeth and prevent the contact ring 50 and the tube holder 26 from rotating relative to each other.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Closures For Containers (AREA)
• Details Of Rigid Or Semi-Rigid Containers (AREA)
• Packages (AREA)

Applications Claiming Priority (2)

Publications (3)

Family

ID=85685183

Family Applications (1)

Country Status (10)

Family Cites Families (12)

• 2022
  • 2022-03-17 DE DE202022101418.3U patent/DE202022101418U1/de active Active
• 2023
  • 2023-03-13 PL PL23711426.9T patent/PL4493486T3/pl unknown
  • 2023-03-13 US US18/827,158 patent/US20250256901A1/en active Pending
  • 2023-03-13 CN CN202380028264.5A patent/CN118891199A/zh active Pending
  • 2023-03-13 KR KR1020247032219A patent/KR20240165361A/ko active Pending
  • 2023-03-13 EP EP23711426.9A patent/EP4493486B1/de active Active
  • 2023-03-13 WO PCT/EP2023/056312 patent/WO2023174851A1/de not_active Ceased
  • 2023-03-13 JP JP2024555010A patent/JP2025509681A/ja active Pending
  • 2023-03-13 ES ES23711426T patent/ES3070293T3/es active Active
  • 2023-03-15 TW TW112109437A patent/TWI861761B/zh active

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