WO2001056896A1 - Hand grippable bottle and preform - Google Patents
Hand grippable bottle and preform Download PDFInfo
- Publication number
- WO2001056896A1 WO2001056896A1 PCT/US2000/041302 US0041302W WO0156896A1 WO 2001056896 A1 WO2001056896 A1 WO 2001056896A1 US 0041302 W US0041302 W US 0041302W WO 0156896 A1 WO0156896 A1 WO 0156896A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- preform
- container
- wall portion
- annular
- feature
- Prior art date
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Classifications
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- 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
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
- B65D1/0223—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by shape
- B65D1/0261—Bottom construction
- B65D1/0276—Bottom construction having a continuous contact surface, e.g. Champagne-type bottom
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/071—Preforms or parisons characterised by their configuration, e.g. geometry, dimensions or physical properties
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- 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
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
- B65D1/0223—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by shape
- B65D1/0261—Bottom construction
- B65D1/0284—Bottom construction having a discontinuous contact surface, e.g. discrete feet
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- 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
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/40—Details of walls
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- 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
- B65D23/00—Details of bottles or jars not otherwise provided for
- B65D23/10—Handles
- B65D23/102—Gripping means formed in the walls, e.g. roughening, cavities, projections
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/0715—Preforms or parisons characterised by their configuration the preform having one end closed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/072—Preforms or parisons characterised by their configuration having variable wall thickness
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/072—Preforms or parisons characterised by their configuration having variable wall thickness
- B29C2949/0723—Preforms or parisons characterised by their configuration having variable wall thickness at flange portion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/072—Preforms or parisons characterised by their configuration having variable wall thickness
- B29C2949/0724—Preforms or parisons characterised by their configuration having variable wall thickness at body portion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/073—Preforms or parisons characterised by their configuration having variable diameter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/073—Preforms or parisons characterised by their configuration having variable diameter
- B29C2949/0732—Preforms or parisons characterised by their configuration having variable diameter at flange portion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/073—Preforms or parisons characterised by their configuration having variable diameter
- B29C2949/0733—Preforms or parisons characterised by their configuration having variable diameter at body portion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/076—Preforms or parisons characterised by their configuration characterised by the shape
- B29C2949/0768—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform
- B29C2949/077—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform characterised by the neck
- B29C2949/0772—Closure retaining means
- B29C2949/0773—Threads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/076—Preforms or parisons characterised by their configuration characterised by the shape
- B29C2949/0768—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform
- B29C2949/077—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform characterised by the neck
- B29C2949/0777—Tamper-evident band retaining ring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/081—Specified dimensions, e.g. values or ranges
- B29C2949/0811—Wall thickness
- B29C2949/0817—Wall thickness of the body
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/081—Specified dimensions, e.g. values or ranges
- B29C2949/0811—Wall thickness
- B29C2949/0818—Wall thickness of the bottom
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
- B29C2949/22—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at neck portion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
- B29C2949/24—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at flange portion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
- B29C2949/26—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at body portion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
- B29C2949/28—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at bottom portion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/06—Injection blow-moulding
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- 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
- B65D2501/00—Containers having bodies formed in one piece
- B65D2501/0009—Bottles or similar containers with necks or like restricted apertures designed for pouring contents
- B65D2501/0018—Ribs
Definitions
- This patent application relates to preform designs for blow molding plastic, e.g. polyethylene terephthalate (PET), containers having hand grip contour features and to containers having such features.
- PET polyethylene terephthalate
- the present invention is directed to making a hand grip or contour feature perform in a large size container, and particularly to such a container for carbonated beverages, where a normal hand cannot grip the bottle with one hand and a prior art contour will not normally remain visible under pressurized conditions.
- the invention increases the strength of the hand grip due to an increase in preform wall thickness even non- pressurized containers, such as liquor bottles or hot-fill containers.
- the work that we have done indicates two newtechnologies. The first is the preform design and the second is the bottle design features that enhance the "gripability" and the retention of "contour shape" of the bottle.
- the preform design is unique in that a ring of material is placed in approximately the middle of the preform so that upon stretching the thicker ring of material is located within the Pinch Grip area of the bottle or, in the case of a contour, in the inner contour geometry.
- Fig. 1 is a side elevation of a container for carbonated beverages having a waisted contour feature
- Fig. 2 is a side elevation of a container similar to that of Fig. 1 illustrating a waisted contour feature
- Fig. 3A-D are, respectively, a sectional elevation and three sectional cross-sections shown as 3B-3B, 3C-3C and 3D-3D in Fig. 3A of a preform for blow molding the container of Fig. 1 ;
- Fig.4 is a diagrammatic cross-section of the container of Fig. 1 with the preform of Fig. 3A superimposed therein to illustrate typical wall thicknesses of the container and material distribution of the preform during blow molding;
- Fig. 5 is a sectional elevation of a preform having the features of the preform of Fig. 3A in combination with a base reinforcing ring;
- Fig. 6 is a prior art, cross-sectional elevation illustrating the material distribution of a preform having a base reinforcing ring in the blow molding of footed (petaloid) container for carbonated beverages;
- Fig. 7 is a prior art, diagrammatic undentiewof the container of Fig. 6 illustrating the distribution of the reinforcing ring material in the footed base;
- Fig. 8 is a diagrammatic cross-section of an embodiment of a container having hand grip features comprising an inverted petaloid design formed into opposed areas of the container sidewall;
- Fig. 9 illustrates the container of Fig. 8 shown in profile to show the hand grip features provided by the inverted petaloid design once the container is pressurized
- Fig. 10 is a view in the direction of arrow A in Fig. 8 illustrating the features of a typical inverted hand grip feature.
- Reinforcing rings in preforms have been proposed in United States Patent Nos. 4,927,679 and 5,614,148. These reinforcing rings are located in the base area of the preform (see Figs. 6 and 7) and may be combined with the thickened panel sidewalls of the present invention, shown above in Figs. 3A-3D and in the combination, referred to above, in Fig. 5.
- the preform of the present invention starts (Fig. 3A) from neck, shoulder portion and first wall portion with a normal or usual material thickness, then transitions to a sidewall thickening ring, then transitions back to a normal or usual wall thickness, or slightly greater than this, but in all cases less thick than a base reinforcing ring, if present (Fig. 5).
- the interior of the preform has to taper inwards in order to remove the preform from typical injection molds.
- This inward taper means that the lower portions of the preform have to stretch further for a typical design bottle. Because it has to stretch further, the stretch ratios are higher for that section of the preform formed bottle. This is defined as the hoop stretch ratio (HSR).
- HSR can be calculated from the OD of the preform wall, the middle (avg) of the preform wall or the ID of the preform wall. Without an increase in the preform wall thickness in this area, the final bottle wall thickness will be less.
- Grip preform where the wall section of the preform under the first thickening ring is approximately the initial wall thickness which then transitions to a thickening rib which then transitions to a base area thinner than initial wall (see Fig. 5).
- Fig. 5 may have a difference in wall thickness from the top versus bottom. The same may be for the section immediately under the thickening rib. Where there are tapers in the wall thickness, it is common to calculate the HSR using an average wall thickness by averaging the thickest and thinnest sections.
- the bottle geometry is important in that an indentation where one would put a grip feature (to hold in one's hand) is going to be a smaller diameter than the corresponding main bottle diameter. This is also the case with an inward contour feature. This changes the HSR. Please note the two tables below to see how the wall thickness is impacted by the HSR with and without the indented grip.
- % increase of the thickening rib is the allowable maximum wall thickness of the preform. There are limitations to the absolute maximum wall thickness for quenching and reheating thick sections. Theoretically, the % increase could be several hundred percent but the range noted in the tables is somewhat more practical.
- the thickening rib will increase the wall thickness of the bottle.
- the thickening rib will result in even thicker walls (by percentage).
- the thickening rib allows thicker bottle walls in selected cross-sections of the bottle via preform design. This extra thickness minimized distortion that will take place on an indented feature of a bottle when pressure and temperature are applied.
- the typical wall thickness in the label panel area is approximately 0.010 - 0.012 inch.
- Table 3 shows results of typical and thick rib preforms and resultant bottle wall thickness on an indented grip design plus the total distortion after pressurization and elevated temperatures.
- Fig. 6 shows, in cross-section, part of monobase preform 18.
- the preform comprises a neck finish, connected to a neck transition portion by way of a neck support ring.
- a sidewall producing portion 20 of the preform extends from the neck transition portion. Both the inner walls 32 and outer walls 33 of the sidewall forming portion 22 are slightly tapered to facilitate release from the injection mold cavity and core.
- the sidewall forming portion 22 terminates in a closed base producing portion 23 having a wall thickness, in the gate producing area thereof, of 0.115 inch (2.921 mm).
- the transition (reinforcing ring forming portion 24) between the sidewall forming portion 22 and the bottom forming portion 23 has an increased wall thickness of about 0.155 inch (3.937 mm). The purpose of the reinforcing ring forming portion 24 will be described hereinafter.
- the preform 18 Prior to blow molding the preform 18 to produce the bottle 1 , the preform 18 is temperature conditioned with preform 18 being turned about axis 8, during conditioning, so as to receive uniform heat. This temperature conditioning takes place outside the blow mold cavity immediately prior to being positioned in the mold cavity. For simplicity, the neck producing portion (which remains substantially the same) and the mold itself are not shown.
- the stretch rod 19, being extendable along the longitudinal axis, is pushed downward stretching the preform longitudinally until the bottom 29 of the preform 18 is closely adjacent (but spaced from) the bottom of the cavity.
- the reinforcing ring forming portion 24 has a wall thickness greater than both the wall thickness of the sidewall forming portion 22 and the bottom forming portion 23 and therefor the reinforcing ring forming portion 24 has a greater mass per unit area and is slightly cooler than the thinner portions of the preform. Due to this and the greater thickness, more stretching occurs in the sidewall forming portion 22 and the gate area forming portion 23 than in the relatively cool thicker reinforcing ring forming portion 24.
- the stretch ratio between the wall thickness of the gate area forming portion 23 and the gate area 14 is about 2:1 whereas the stretch ratio between the sidewall forming portion 22 and the sloping wall 11 is about 12:1.
- the extension of the sidewall forming portion 22 by the stretch rod 19 occurs along axis 8 as shown by arrows 35 whereas arrows 36 show the direction of extension in the bottom forming portion 23 by the stretch rod.
- the inside diameter of the preform 18 is greater than the outside diameter of the stretch rod 19 whereby an annular space 20 is provided.
- This space 20 facilitates pressurization of the preform 18 to produce the bottle 1. Also, this space provides for a simply designed stretch rod having no step to accommodate the reinforcing ring forming portion 24 of the preform 18.
- Pressurized gas is introduced within the preform 18 to blow the preform 18 outwardly and downwardly away from the stretch rod to produce the bottle 1.
- the gas is introduced so that blow molding proceeds from the top of the bottle 1 adjacent the neck transition to the bottom forming portion 23.
- the introduction of the gas may commence before the stretch rod has completed the longitudinal extension of the preform.
- preferred performance is obtained in PET containers by providing desired axial and hoop stretching of the material during the blow molding process thus bi-axially orienting the material of the container.
- the above described control of the temperature conditioning and the stretch rod operation coupled with the blow molding itself provide desired bi-axial orientation of the container material together with accurate placement of the reinforcing ring forming portion 24 and gate area forming portion 23 to form the reinforcing petaloid base of the container.
- the reinforcing ring forming portion 24 is cooler, material is pulled from bottom forming portion during blowing to increase the stretch and thus the orientation in the gate area 14. This is believed at least in part because as the sidewall forming portion 22 is blown outwardly away from the stretch rod 19, the gate area forming portion 23 is also blown outwardly and downwardly away from the stretch rod 19 while the slightly cooler more massive reinforcing ring forming portion 24 is laid into the pad forming portion of the mold last after the gate area has been formed.
- the expansion of the reinforcing ring 24 has the tendency to draw material from gate area 23 and area 22 adjacent the reinforcing ring 24.
- the gate area forming portion 23 is able to expand across the gate area with greater freedom than is available in the absence of the reinforcing ring forming portion 24.
- container in the form of a bottle is produced having less weight than prior art petaloid based bottles while maintaining adequate strength to withstand internal pressure from a carbonated beverage.
- the bottle illustrated includes a small annular lip 16, which is primarily present for aesthetic purposes and for label alignment during production. This lip lies adjacent the transition from the sidewall to the base.
- Fig. 7 there is shown the bottom view of the base of the present invention showing the reinforcing ring 21 extending circumferentially around the base and following the curves and slopes through the foot walls 9, foot pads 10, straps 12 and sloping walls 11.
- the hand grip features each comprise an intaglio feature in the form of five identical, hollow feet 21', which together form a petaloid foot formation with the feet symmetrically and evenly disposed about the longitudinal axis of the intaglio feature.
- the innermost extensions of the feet 21' terminate in "foot" pads 23'.
- the pads 23' together define a plane disposed normal to the axis 8' of the hand grip feature, this axis 8' passes through and extends normal to the longitudinal axis of the container.
- Each foot 21' comprises sloping sidewalls 24' extending from its pad 23' to adjacent straps 25' which generally conform to the underlying modified hemispherical form.
- FIG. 8 may be made using the preform of Fig. 3.
- the dashed lines in the feet 21' of Fig. 10 indicate the theoretical underlying intersections of the surfaces defining the feet and the modified hemispherical shaped base. These intersections are theoretical due to the joining of the surfaces by smooth transitions, fillets or chamfers in order to define the curvature of the surfaces concerned.
- the radially extending straps 25' are disposed between adjacent pairs of feet 21'. These straps 25' each include flat strap, root portions 26' but otherwise substantially follow the surface curvature of the underlying modified hemispherical shape of the base. The straps 25' each terminate at and open into an extended portion and meet a sloping wall.
- the base area 27' through which extends the axis is connected to each pad 23' by a ridge ankle 28 * joined on either side by blending curves to portions of the sloping walls 24'.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2001221161A AU2001221161A1 (en) | 2000-02-03 | 2000-10-19 | Hand grippable bottle and preform |
US10/181,123 US6841262B1 (en) | 2000-02-03 | 2000-10-19 | Hand grippable bottle and preform |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US17993700P | 2000-02-03 | 2000-02-03 | |
US60/179,937 | 2000-02-03 |
Publications (1)
Publication Number | Publication Date |
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WO2001056896A1 true WO2001056896A1 (en) | 2001-08-09 |
Family
ID=22658598
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2000/041302 WO2001056896A1 (en) | 2000-02-03 | 2000-10-19 | Hand grippable bottle and preform |
Country Status (2)
Country | Link |
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AU (1) | AU2001221161A1 (en) |
WO (1) | WO2001056896A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1468930A1 (en) * | 2003-04-15 | 2004-10-20 | Nestlé Waters Management & Technology | Thin-walled container |
WO2005037524A2 (en) * | 2003-10-14 | 2005-04-28 | Action Uno, S.L. | Preform used for the production of a container, container, and device for closing said container |
WO2006124199A1 (en) * | 2005-05-11 | 2006-11-23 | The Coca-Cola Company | Lightweight stretch blow molded pet copolymer container and preform for making same |
USD790279S1 (en) | 2016-06-30 | 2017-06-27 | Lokai Holdings Llc | Water bottle |
US9849620B2 (en) | 2014-03-21 | 2017-12-26 | Husky Injection Molding Systems Ltd. | Container preform |
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US4950514A (en) * | 1988-10-26 | 1990-08-21 | Plasticon Patents, S. A. | Plastic preform for forming blow molded plastic bodies |
US4954376A (en) * | 1988-12-30 | 1990-09-04 | Continental Pet Technologies, Inc. | Two material three/five layer preform |
US5066528A (en) * | 1990-03-05 | 1991-11-19 | Continental Pet Technologies, Inc. | Refillable polyester container and preform for forming the same |
US5104706A (en) * | 1990-03-15 | 1992-04-14 | Continental Pet Technologies, Inc. | Preform for hot fill pressure container |
US5261543A (en) * | 1991-07-30 | 1993-11-16 | Sipa S.P.A. | Plastic bottle for containing both under-pressure and non under-pressure liquids |
US5392937A (en) * | 1993-09-03 | 1995-02-28 | Graham Packaging Corporation | Flex and grip panel structure for hot-fillable blow-molded container |
US5888598A (en) * | 1996-07-23 | 1999-03-30 | The Coca-Cola Company | Preform and bottle using pet/pen blends and copolymers |
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2000
- 2000-10-19 WO PCT/US2000/041302 patent/WO2001056896A1/en active Application Filing
- 2000-10-19 AU AU2001221161A patent/AU2001221161A1/en not_active Abandoned
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US4950514A (en) * | 1988-10-26 | 1990-08-21 | Plasticon Patents, S. A. | Plastic preform for forming blow molded plastic bodies |
US4954376A (en) * | 1988-12-30 | 1990-09-04 | Continental Pet Technologies, Inc. | Two material three/five layer preform |
US5066528A (en) * | 1990-03-05 | 1991-11-19 | Continental Pet Technologies, Inc. | Refillable polyester container and preform for forming the same |
US5104706A (en) * | 1990-03-15 | 1992-04-14 | Continental Pet Technologies, Inc. | Preform for hot fill pressure container |
US5261543A (en) * | 1991-07-30 | 1993-11-16 | Sipa S.P.A. | Plastic bottle for containing both under-pressure and non under-pressure liquids |
US5392937A (en) * | 1993-09-03 | 1995-02-28 | Graham Packaging Corporation | Flex and grip panel structure for hot-fillable blow-molded container |
US5888598A (en) * | 1996-07-23 | 1999-03-30 | The Coca-Cola Company | Preform and bottle using pet/pen blends and copolymers |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100355631C (en) * | 2003-04-15 | 2007-12-19 | 雀巢水业管理技术公司 | Thin-walled container for products |
WO2004092029A1 (en) * | 2003-04-15 | 2004-10-28 | Nestle Waters Management & Technology | A container for product with thin wall |
US10266298B2 (en) | 2003-04-15 | 2019-04-23 | Nestle Waters Management & Technology | Container for product with thin wall |
EP1468930A1 (en) * | 2003-04-15 | 2004-10-20 | Nestlé Waters Management & Technology | Thin-walled container |
US20130213922A1 (en) * | 2003-04-15 | 2013-08-22 | Nestle Waters Management & Technology | Container for product with thin wall |
EA007761B1 (en) * | 2003-04-15 | 2006-12-29 | Нестле Уотерз Менеджмент Энд Текнолоджи | A container for product with thin wall |
WO2005037524A3 (en) * | 2003-10-14 | 2005-06-23 | Action Uno S L | Preform used for the production of a container, container, and device for closing said container |
WO2005037524A2 (en) * | 2003-10-14 | 2005-04-28 | Action Uno, S.L. | Preform used for the production of a container, container, and device for closing said container |
CN101203431B (en) * | 2005-05-11 | 2011-01-19 | 可口可乐公司 | Lightweight stretch blow molded PET copolymer container and preforms for preparing the same |
AU2006248005B2 (en) * | 2005-05-11 | 2011-04-28 | The Coca-Cola Company | Lightweight stretch blow molded pet copolymer container and preform for making same |
US8247049B2 (en) | 2005-05-11 | 2012-08-21 | The Coca-Cola Company | Preforms for preparing lightweight stretch blow molded pet copolymer containers and methods for making and using same |
WO2006124199A1 (en) * | 2005-05-11 | 2006-11-23 | The Coca-Cola Company | Lightweight stretch blow molded pet copolymer container and preform for making same |
US9849620B2 (en) | 2014-03-21 | 2017-12-26 | Husky Injection Molding Systems Ltd. | Container preform |
USD790279S1 (en) | 2016-06-30 | 2017-06-27 | Lokai Holdings Llc | Water bottle |
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