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
  • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
  • B65D75/52—Details
  • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
  • B65D75/5855—Peelable seals
• • 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
  • B65D11/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material
  • B65D11/02—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material of curved cross-section
  • B65D11/04—Bottles or similar containers with necks or like restricted apertures designed for pouring contents
• • 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
  • B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge
  • B65D47/2018—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure
  • B65D47/2031—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure the element being formed by a slit, narrow opening or constrictable spout, the size of the outlet passage being able to be varied by increasing or decreasing the pressure
  • B65D47/2037—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure the element being formed by a slit, narrow opening or constrictable spout, the size of the outlet passage being able to be varied by increasing or decreasing the pressure the element being opened or closed by actuating a separate element which causes the deformation, e.g. screw cap closing container slit
• • 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
  • B65D77/10—Container closures formed after filling

Definitions

• the invention concerns a container for fluid material, that is, a vessel, for example a flask, or a bottle, for containing fluid substances, for example, liquids, or powders, mainly, but not exclusively, for domestic use.
• a container for fluid material that is, a vessel, for example a flask, or a bottle, for containing fluid substances, for example, liquids, or powders, mainly, but not exclusively, for domestic use.
• Prior art comprises flasks, or bottles, obtained by a blow- moulding method comprising welding and heat-forming sheets of plastics, for fluid products in general, which may be opened by cutting, or tearing, the upper end of a neck: the opening procedure is not particularly easy for the consumer, entailing a certain amount of time-wasting: in fact, opening by cutting entails the use of appropriate tools, such as scissors, or knives, which are particularly dangerous in a domestic environment, whereas opening by tearing is, for the most part, imprecise and often results in an accidental spillage of the
• WO-94/08852 discloses such a container in which the welding zone of the sheets constitutes an outline seal rib of the container.
• a re-closing, screw cap co ⁇ operates with saw-toothing formed on the outer edge of the rib at respective opposite sides of the neck, the screw cap also being arranged to co-operate with interrupted threading formed on respective opposite walls of the neck.
• a re-closing, non-screw cap is formed internally with diametrically opposite slots which receive the respective parts of the rib at respective opposite sides of the discharge mouth of the container to locate and retain t ⁇ e cap on the opened neck.
• Such containers could be considerably improved. For example, it is highly desirable to solve the technical problems involved in the opening by cutting or tearing, especially to achieve an optimal and rapid opening procedure. Another technical problem which it would be desirable to solve is how to obtain easy and reliable re- closure of the container after opening.
• a container for fluid material comprising a pair of opposing members adhered together along a peripheral seal, the zone of said seal bounding an intended outlet from said container being peelable, whereby said members may be separated from each other- at said zone by pulling, characterised in that means limits said zone by making significantly more difficult peeling apart of said members beyond first and second locations on said seal.
• a container for fluid material comprising a pair of opposing members adhered together along a peripheral seal, the zone of said seal bounding an intended outlet from said container being peelable, whereby said members may be separated from each other at said zone by pulling, characterised in that a closing element serves to hold together portions of said members at said zone following re-closing of said outlet.
• the containere can be easily and reliably re-closed.
• a container for fluid material comprising a pair of opposing members adhered together along a peripheral seal, the zone of said seal bounding an intended outlet from said container being peelable, whereby said members may be separated from each other at said zone by pulling, characterised in that a loop extends around said members.
• the loop can serve one or more of a variety of purposes. It can mount a re-closing element for the container and/or it can be used to widen a discharge mouth of the container and/or it can limit the extent to which the peripheral seal of the container can be peeled apart.
• a container obtained by blow- moulding of two face-to-face sheets of plastics and sealed along a rib that extends for substantially the entire outline of the container, or for a substantial part of it, has a neck bounding an outlet from which the fluid material is to flow.
• a zone of the rib at the neck is made so that it can be peeled, that is, the neck limbs of the shells constituting the container can be separated by pulling. This enables the container to be opened very rapidly without using tools or tearing.
• a re-closing element for the limbs of the neck advantageously consists of a forked element which is mechanically linked to the container in any appropriate way and which may be brought to embrace the limbs. This enables the container to be easily, simply and rapidly closed after use, so eliminating the risk of contamination of the product contained in it.
• a closed loop i.e. a ring
• the base surfaces of the pair of incisions converge towards the outer end of the neck to co-operate with correspondingly converging edges of the rib.
• the opening of the container is assisted when the ring is pushed down, splaying the limbs of the neck at the zone of the neck that may be opened.
• the lower edges of the pair of diverging zones of the internal surface of the ring can interfere with the neck of the container, tapered upwards, further to force the limbs of the neck apart when the ring is pushed down, in this way collaborating with the base surfaces of the incisions.
• Some means for holding the ring securely in position is preferably provided; for example upper edges of the base surfaces of the incisions may engage stepped seats formed in corresponding parts of the rib that may be opened.
• the ring can advantageously be connected to the re-closing element.
• Figure 1 is a fragmentary axonometric view of a container
• Figure 2 is an axonometric view of a ring for promoting opening of a neck of the container and equipped with a re- closing device
• Figure 3 is section III-III of Figure 1;
• Figure 4 is section IV-IV of Figure 3;
• Figure 5 is a section as Figure 3, but with the ring in a lowered position to maintain the open configuration of the neck;
• Figure 6 is section VI-VI of Figure 5;
• Figure 7 is section VII-VII of Figure 3;
• Figure 8 is section VIII-VIII of Figure 5;
• Figures 9 and 10 correspond, respectively, to Figures 7 and 8, in a version of the ring having an internal surface which is substantially prismatic-
• Figure 11 is an enlarged detail of one of the walls of the neck of the container as in Figure 3 showing how the neck and the ring fitted onto it engage together.
• the container 1 is obtained by a blow-moulding method in which two face-to-face plastics sheets are heat-and pressure-sealed along an outline and inflating fluid is introduced between the sheets.
• the heat-sealed outline constitutes a stiffening rib 3.
• An upper zone of the heat seal for example above an imaginary level 4 at the neck 2, is carried out sufficiently weakly that the limbs 5 of the shells at the neck 2 may be peeled apart. Below the level 4, the seal is stronger so as to make it significantly more difficult to p 3' ' apart the shells below the level 4.
• the lir.3 5 of the n c are partially separate from each other, at least at t ir upper end 5a so that they may be more easily gripped i ⁇ r pulling the limbs apart from each other.
• the neck 2 of the container 1 co-operates with a ring 6, 6 slidable along the neck between a container-closed position, shown, for example, in Figures 1 and 3, and a container-open position, shown in Figure 5.
• the ring 6 has a pair of diametrically opposed incisions 7, acting as guides for the ring 6 on the corresponding opposite zones of the rib 3, particularly on those zones of the rib 3 that may be peeled.
• the profiles of the base surfaces of the incisions 7 converge towards the free end of the neck 2, engaging with the correspondingly converging edges of the rib 3; those edges being of saw-toothed form to provide stepped seats 8 that engage with the top edges 9 of those base surfaces ( Figure 11) .
• the seats 8 consist of an upper pair which deters upward movement of the ring 6 from its Figure 3 position and a lower pair which deters upward movement thereof from its Figure 5 position.
• the ring 6 can have, particularly in the case of the neck 2 being tapered upwards, its lower edge 10 contacting the external surface of the neck prior to opening. Forcing downwards of the ring 6 from its Figure 4 position squeezes the neck inwardly at the edge 10.
• the internal surface of the ring 6 has a pair of opposing concave surfaces diverging upwards, for example in the shape of sectors of a truncated cone 11 ( Figure 7) , that accommodate zones of the external surface of the opened neck 2, that is, when the ring 6 occupies its lowered position.
• the opposing surfaces can consist of dihedrals 12 ( Figures 9 and 10) : in this case, in order to make it easier to accommodate the walls of the neck 2 in the ring, fold lines 11a giving preferential deformation are provided longitudinally in those walls.
• the two operative positions of the ring 6 are shown, namely the raised position, corresponding to the container-closed position, where the neck is not deformed and the limbs 5 are sealed together, or have been re-closed, with re-application of the element 14, and the lowered position, shown in phantom lines in Figure 11, corresponding to the elastically deformed open position of the neck 2.
• the base surfaces of the pair of incisions 7 define a diameter of the neck 2 which is reduced by an amount Al with respect to when the neck is not deformed; this induces a deformation in the neck 2 with a corresponding increase in diameter in a meridian plane, that is, a plane passing through the axis of the neck 2, orthogonal to the plane containing the incisions 7 with, consequently, the external surfaces of the neck 2 being deformed to bear on the internal surfaces 11, 12 of the ring 6.
• the neck 2 may co-operate with a closing element 13 comprising a fork 14.
• the closing element 13 may be linked with the ring 6 by means of a connector element 15, consisting of a flexible strap, for example.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Details Of Rigid Or Semi-Rigid Containers (AREA)
• Closures For Containers (AREA)
• Containers Having Bodies Formed In One Piece (AREA)
• Glass Compositions (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=11385728

Family Applications (1)

Country Status (10)

Families Citing this family (6)

Family Cites Families (4)

• 1994
  • 1994-11-08 IT ITMO940153A patent/IT1269272B/it active IP Right Grant
• 1995
  • 1995-11-02 WO PCT/IB1995/000957 patent/WO1996014254A1/en not_active Application Discontinuation
  • 1995-11-02 MX MX9703336A patent/MX9703336A/es unknown
  • 1995-11-02 CA CA002203519A patent/CA2203519A1/en not_active Abandoned
  • 1995-11-02 JP JP8515167A patent/JPH10509409A/ja active Pending
  • 1995-11-02 EP EP95934780A patent/EP0790939A1/en not_active Ceased
  • 1995-11-02 BR BR9509507A patent/BR9509507A/pt not_active Application Discontinuation
  • 1995-11-02 AU AU37074/95A patent/AU3707495A/en not_active Abandoned
• 1997
  • 1997-05-05 FI FI971911A patent/FI971911A/fi not_active Application Discontinuation
  • 1997-05-07 NO NO972117A patent/NO972117L/no unknown

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events