WO1997034808A9 - Blow-molded container having label mount regions separated by peripherally spaced ribs - Google Patents
Blow-molded container having label mount regions separated by peripherally spaced ribsInfo
- Publication number
- WO1997034808A9 WO1997034808A9 PCT/US1997/004288 US9704288W WO9734808A9 WO 1997034808 A9 WO1997034808 A9 WO 1997034808A9 US 9704288 W US9704288 W US 9704288W WO 9734808 A9 WO9734808 A9 WO 9734808A9
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- container
- ribs
- lands
- collapse
- label
- Prior art date
Links
- 210000000614 Ribs Anatomy 0.000 title claims abstract description 42
- 239000000853 adhesive Substances 0.000 claims abstract description 9
- 230000001070 adhesive Effects 0.000 claims abstract description 8
- 239000002991 molded plastic Substances 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 230000002787 reinforcement Effects 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 230000000153 supplemental Effects 0.000 claims description 2
- 235000013361 beverage Nutrition 0.000 description 4
- 230000003014 reinforcing Effects 0.000 description 4
- 230000002708 enhancing Effects 0.000 description 2
- 230000002093 peripheral Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 230000001737 promoting Effects 0.000 description 1
Definitions
- the present invention relates to blow-molded plastic hot-fill beverage containers, and more particularly to a container having a series of short, peripherally spaced ribs in the sidewall of the container to stiffen the sidewall adjacent collapse panel corners while enhancing label attachment.
- Alberghini et al. discloses a continuous peripheral rib medially of the label panel area between upper and lower arrays of collapse panels.
- U.S. Patent 5,064,081 to Hayashi et al. discloses, in FIGs. 8 and 9, a container of square cross-section having reinforcing ribs located directly above and below vertically-elongate collapse panels.
- U.S. Patent 5,178,289 to Krishnakumar et al. discloses interrupted ribs in a container structure similar to that disclosed in the aforementioned '046 patent to Collette et al.
- U.S. Patent 5,337,909 to Vailliencourt discloses a hot-fill container having continuous peripheral ribs in a label mounting region above and below vacuum panels.
- the continuous reinforcing rings being located in the label mounting area of the container, limit the area available for the application of label adhesives.
- the Hayashi et al. patent incorporates discontinuous reinforcing ribs, they are located directly above and below the vacuum panels at locations that do not provide significant reinforcement.
- a commercially desirably hot-fill blow- molded vacuum-panel container is one which provides desirable reinforcement in conjunction with a maximum area for application of label adhesive.
- a primary object of the present invention is to provide a hot-fill blow-molded container having collapse panels that are reinforced in a manner that also maximizes areas available for the application of label adhesive.
- the present invention provides an improved hot-fillable, blow-molded plastic container for containing a liquid filled initially in a hot state and subsequently sealed so that the cooling of the liquid creates a reduced volume in the container.
- the container has a base, a shoulder above the base, a closeable neck on the shoulder permitting filling and discharge of the liquid, and a body connecting the base and the shoulder and defining a label mount section.
- the label mount section has a plurality of identical, spaced-apart collapse panels with a land located between adjacent collapse panels. Each collapse panel is vertically elongate and has a predetermined width, and each land is vertically elongate and has a predetermined width.
- the improvement comprises an upper and a lower series of peripherally spaced ribs separated endwise by label mount areas.
- Each upper rib is located within the label mount section and is centered above one of the lands.
- Each lower rib is located within the label mount area and is centered below one of the lands.
- Each upper and lower rib has a length at least as great as the width of one of the lands, but does not extend completely above or below the narrow ends of the collapse panels. This arrangement provides label mount areas between endwise adjacent ribs.
- FIG. 1 is an elevational view of a container having reinforcement ribs in accordance with the present invention.
- Fig. 2 is an elevational view of the container shown in Fig. 1 rotated 30° about a central vertical axis.
- Figs. 1 and 2 illustrate a blow-molded plastic container 10 useful in containing beverages such as juice.
- the empty container 10 can be filled by automated, high-speed, hot-fill processing equipment known in the art.
- Hot-fill processing creates stress and strain on the container structure. For instance, internal pressure is exerted on the container when the beverage is charged into the container at high volumetric flow rates, and external pressure results from cooling of the capped container filled with high temperature product.
- the container 10 has many features in common with known collapse-panel containers.
- the container 10 has a base 12 and a shoulder 14 above the base 12.
- the shoulder 14 has a closeable neck 16 for permitting filling and discharge of a beverage.
- the container 10 has a body 18 of generally circular cross- section connecting the shoulder 14 and the base 12.
- a label (not shown) can be applied to the container 10 for product and source identification as well as informational, promotional and advertising purposes.
- the container 10 has an upper label bumper 22 and a lower label bumper 24 defining therebetween a label mount section 26. When applied, the label extends around the entire periphery of the container 10 and is secured with adhesives to the label mount section 26.
- the body 18 is provided with means to prevent unintended distortion of the container 10.
- a plurality of collapse panels 28 are located on the body 18 to provide a controlled response to the pressures causing the container to deform inwardly.
- the container 10 has six identical collapse panels 28 evenly spaced apart around the periphery of the body 18.; Each collapse panel 28 has an upper end 40 terminating in upper corners 42 and a lower end 44 terminating in lower corners 46.
- a series of vertically- elongate lands 30 are located between adjacent collapse panels 28 and separate them. Each land 30 has a width "L". The collapse panels 28 and lands 30 are located within the label mount section 26, and therefore are hidden from view after a label is applied to the container 10.
- a series of short, horizontal upper ribs 32 are provided to stiffen the container 10 adjacent the upper corners 42 of the collapse panels 28, and a series of short, horizontal lower ribs 34 are provided to stiffen the container 10 adjacent lower corners 46 of the collapse panels 28.
- the upper and lower ribs 32 and 34 are inwardly convex and are aligned endwise about the periphery of the container body 18 to form a chain-like configuration. All the upper ribs 32 are positioned at the same container elevation and are separated endwise, i.e. they do not touch or overlap. Similarly, all the lower ribs 34 are positioned at the same container elevation and do not touch or overlap.
- the ends 32a and 32b of endwise adjacent ribs 32 terminate above and inwardly of the upper corners 42 of the collapse panel 28a.
- each upper rib 32 and lower rib 34 is centered above or below one of the lands 30 and within the label mount section 26. Since there are six collapse panels 28, there are six lands 30, six upper ribs 32 and six lower ribs 34. Each upper and lower rib 32 and 34 extend a distance at least as great as the width "L" of one of the lands 30. However, in order to ensure desirable spacing between the ends of adjacent ribs, such as ends 32a and 32b, each upper and lower rib 32 and 34 extends only above, or below, the upper corners 42, or lower corners 46, of the collapse panels 28 and not along the entire length of the upper ends 40, or lower ends 44, of the collapse panels 28. Preferably, all ribs 32 and 34 are of the same length and, in aggregate, occupy about half of the periphery of the container body.
- the short lengths of the upper and lower ribs 32 and 34 aid in effective label attachment. This is because areas 36 between the ends 32a and 32b of adjacent upper ribs 32 provide smooth, supplemental, spaced areas for the application of adhesives for securing labels.
- areas 38 between the ends of adjacent lower ribs 34 provide smooth areas for the application of adhesives.
- the present invention now provides a hot-fillable blow- molded plastic container which is not only resistant to distortion, but which also enhances label attachment by providing desirably-located label-adhesive areas. While a preferred embodiment of the present invention has been described in detail, various modifications, alterations, and changes may be made without departing from the spirit and the scope of the present invention as defined in the appended claim.
Abstract
A blow-molded plastic container (10) intended for use in hot-fill processing. The container (10) has a series of short, upper and lower ribs (32, 34) which are spaced apart endwise and which extend peripherally about the container sidewall above and below lands (30) between vertically elongate collapse panels (28) and adjacent corners (42, 46) of collapse panels (28) to reinforce the container (10) at selected locations while providing additional areas for receiving label attachment adhesive.
Description
BLOW-MOLDED CONTAINER HAVING LABEL MOUNT REGIONS SEPARATED BY PERIPHERALLY SPACED RIBS
Field of the Invention
The present invention relates to blow-molded plastic hot-fill beverage containers, and more particularly to a container having a series of short, peripherally spaced ribs in the sidewall of the container to stiffen the sidewall adjacent collapse panel corners while enhancing label attachment.
Background of the Invention
Blow-molded hot-fill containers having vacuum- collapse panels and reinforcing ribs are known. For instance, U.S. Patent 4,863,046 to Collette et al. discloses vertically-disposed ribs in the land area between adjacent panels. U.S. Patent 5,054,632 to
Alberghini et al. discloses a continuous peripheral rib medially of the label panel area between upper and lower arrays of collapse panels. U.S. Patent 5,064,081 to Hayashi et al. discloses, in FIGs. 8 and 9, a container of square cross-section having reinforcing ribs located directly above and below vertically-elongate collapse panels. U.S. Patent 5,178,289 to Krishnakumar et al. discloses interrupted ribs in a container structure similar to that disclosed in the aforementioned '046 patent to Collette et al. U.S. Patent 5,337,909 to Vailliencourt discloses a hot-fill container having continuous peripheral ribs in a label mounting region above and below vacuum panels.
In the '909 Valliencourt patent, the continuous reinforcing rings, being located in the label mounting area of the container, limit the area available for the application of label adhesives. Although the Hayashi et al. patent incorporates discontinuous reinforcing ribs, they are located directly above and below the vacuum panels at locations that do not provide significant
reinforcement. A commercially desirably hot-fill blow- molded vacuum-panel container is one which provides desirable reinforcement in conjunction with a maximum area for application of label adhesive.
Objects of the Invention
With the foregoing in mind, a primary object of the present invention is to provide a hot-fill blow-molded container having collapse panels that are reinforced in a manner that also maximizes areas available for the application of label adhesive.
Summary of the Invention
More specifically, the present invention provides an improved hot-fillable, blow-molded plastic container for containing a liquid filled initially in a hot state and subsequently sealed so that the cooling of the liquid creates a reduced volume in the container. The container has a base, a shoulder above the base, a closeable neck on the shoulder permitting filling and discharge of the liquid, and a body connecting the base and the shoulder and defining a label mount section. The label mount section has a plurality of identical, spaced-apart collapse panels with a land located between adjacent collapse panels. Each collapse panel is vertically elongate and has a predetermined width, and each land is vertically elongate and has a predetermined width. The improvement comprises an upper and a lower series of peripherally spaced ribs separated endwise by label mount areas. Each upper rib is located within the label mount section and is centered above one of the lands. Each lower rib is located within the label mount area and is centered below one of the lands. Each upper and lower rib has a length at least as great as the width of one of the lands, but does not extend completely above
or below the narrow ends of the collapse panels. This arrangement provides label mount areas between endwise adjacent ribs.
Brief Description of the Drawings Fig. 1 is an elevational view of a container having reinforcement ribs in accordance with the present invention; and
Fig. 2 is an elevational view of the container shown in Fig. 1 rotated 30° about a central vertical axis.
Description of the Preferred Embodiment
Figs. 1 and 2 illustrate a blow-molded plastic container 10 useful in containing beverages such as juice. The empty container 10 can be filled by automated, high-speed, hot-fill processing equipment known in the art.
Hot-fill processing creates stress and strain on the container structure. For instance, internal pressure is exerted on the container when the beverage is charged into the container at high volumetric flow rates, and external pressure results from cooling of the capped container filled with high temperature product.
The container 10 has many features in common with known collapse-panel containers. For instance, the container 10 has a base 12 and a shoulder 14 above the base 12. The shoulder 14 has a closeable neck 16 for permitting filling and discharge of a beverage. The container 10 has a body 18 of generally circular cross- section connecting the shoulder 14 and the base 12.
A label (not shown) can be applied to the container 10 for product and source identification as well as informational, promotional and advertising purposes. To this end, the container 10 has an upper label bumper 22 and a lower label bumper 24 defining therebetween a label
mount section 26. When applied, the label extends around the entire periphery of the container 10 and is secured with adhesives to the label mount section 26.
To withstand the forces resulting from hot-fill processing, the body 18 is provided with means to prevent unintended distortion of the container 10. To this end, a plurality of collapse panels 28 are located on the body 18 to provide a controlled response to the pressures causing the container to deform inwardly. As shown in the drawings, the container 10 has six identical collapse panels 28 evenly spaced apart around the periphery of the body 18.; Each collapse panel 28 has an upper end 40 terminating in upper corners 42 and a lower end 44 terminating in lower corners 46. A series of vertically- elongate lands 30 are located between adjacent collapse panels 28 and separate them. Each land 30 has a width "L". The collapse panels 28 and lands 30 are located within the label mount section 26, and therefore are hidden from view after a label is applied to the container 10.
Although the collapse panels 28 are intended to respond to various pressures exerted on the container 10, the remaining structure of the container 10 must remain rigid and resist distortion. For this purpose, a series of short, horizontal upper ribs 32 are provided to stiffen the container 10 adjacent the upper corners 42 of the collapse panels 28, and a series of short, horizontal lower ribs 34 are provided to stiffen the container 10 adjacent lower corners 46 of the collapse panels 28. As shown in the drawings, the upper and lower ribs 32 and 34 are inwardly convex and are aligned endwise about the periphery of the container body 18 to form a chain-like configuration. All the upper ribs 32 are positioned at the same container elevation and are separated endwise, i.e. they do not touch or overlap. Similarly, all the
lower ribs 34 are positioned at the same container elevation and do not touch or overlap. The ends 32a and 32b of endwise adjacent ribs 32 terminate above and inwardly of the upper corners 42 of the collapse panel 28a.
As shown, each upper rib 32 and lower rib 34 is centered above or below one of the lands 30 and within the label mount section 26. Since there are six collapse panels 28, there are six lands 30, six upper ribs 32 and six lower ribs 34. Each upper and lower rib 32 and 34 extend a distance at least as great as the width "L" of one of the lands 30. However, in order to ensure desirable spacing between the ends of adjacent ribs, such as ends 32a and 32b, each upper and lower rib 32 and 34 extends only above, or below, the upper corners 42, or lower corners 46, of the collapse panels 28 and not along the entire length of the upper ends 40, or lower ends 44, of the collapse panels 28. Preferably, all ribs 32 and 34 are of the same length and, in aggregate, occupy about half of the periphery of the container body.
The short lengths of the upper and lower ribs 32 and 34 aid in effective label attachment. This is because areas 36 between the ends 32a and 32b of adjacent upper ribs 32 provide smooth, supplemental, spaced areas for the application of adhesives for securing labels.
Likewise, areas 38 between the ends of adjacent lower ribs 34 provide smooth areas for the application of adhesives.
In view of the foregoing, it should be apparent that the present invention now provides a hot-fillable blow- molded plastic container which is not only resistant to distortion, but which also enhances label attachment by providing desirably-located label-adhesive areas.
While a preferred embodiment of the present invention has been described in detail, various modifications, alterations, and changes may be made without departing from the spirit and the scope of the present invention as defined in the appended claim.
Claims
1. In a hot-fillable, blow-molded plastic container (10) for containing a liquid filled initially in a hot state and subsequently sealed so that the cooling of the liquid creates a reduced volume in the container (10) , the container (10) having a base (12) , a shoulder (14) above the base (12) , a closable neck (16) on the shoulder (14) permitting filling and discharge of the liquid, and a body (18) connecting the base (12) and the shoulder (14) and defining a label mount section (26) , the label mount section (26) having a plurality of identical, spaced-apart vertically-elongate collapse panels (28) with an upper end (40) terminating at upper corners (42) and a lower end (44) terminating at lower corners (46) , adjacent collapse panels (28) being separated by a vertically-elongate land (30) located therebetween, each land (30) having a width "L", the improvement comprising: an upper and a lower series of short peripherally-spaced ribs (32, 34), each said upper rib (32) being located within the label mount section (26) and centered above one of the lands (30) , and each said lower rib (34) being located within the label mount area (26) and centered below one of the lands (30) ; each said upper rib (32) being aligned endwise, extending a length at least as great as the width "L" of one of the lands (30) , and terminating a predetermined distance from adjacent upper ribs (32) ; each said lower rib (34) being aligned endwise, extending a length at least as great as the width "L" of one of the lands (30) , and terminating a predetermined distance from adjacent lower ribs (34) ; and said ribs (32, 34) being located relative to said lands (30) and collapse panel corners (42, 46) to provide desirable reinforcement adjacent said collapse panels (28) and to provide supplemental smooth areas for receiving label attachment adhesive above and below said collapse panels
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US1369296P | 1996-03-19 | 1996-03-19 | |
US60/013,692 | 1996-03-19 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1997034808A1 WO1997034808A1 (en) | 1997-09-25 |
WO1997034808A9 true WO1997034808A9 (en) | 1998-07-02 |
Family
ID=21761224
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1997/004288 WO1997034808A1 (en) | 1996-03-19 | 1997-03-18 | Blow-molded container having label mount regions separated by peripherally spaced ribs |
Country Status (2)
Country | Link |
---|---|
CA (1) | CA2248957A1 (en) |
WO (1) | WO1997034808A1 (en) |
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CA2330284C (en) * | 1999-02-27 | 2007-08-07 | Yoshino Kogyosho Co., Ltd. | Synthetic resin container with label |
US8127955B2 (en) | 2000-08-31 | 2012-03-06 | John Denner | Container structure for removal of vacuum pressure |
US10435223B2 (en) | 2000-08-31 | 2019-10-08 | Co2Pac Limited | Method of handling a plastic container having a moveable base |
NZ521694A (en) | 2002-09-30 | 2005-05-27 | Co2 Pac Ltd | Container structure for removal of vacuum pressure |
US8381940B2 (en) | 2002-09-30 | 2013-02-26 | Co2 Pac Limited | Pressure reinforced plastic container having a moveable pressure panel and related method of processing a plastic container |
US7900425B2 (en) | 2005-10-14 | 2011-03-08 | Graham Packaging Company, L.P. | Method for handling a hot-filled container having a moveable portion to reduce a portion of a vacuum created therein |
US7543713B2 (en) | 2001-04-19 | 2009-06-09 | Graham Packaging Company L.P. | Multi-functional base for a plastic, wide-mouth, blow-molded container |
US10246238B2 (en) | 2000-08-31 | 2019-04-02 | Co2Pac Limited | Plastic container having a deep-set invertible base and related methods |
AU2002257159B2 (en) | 2001-04-19 | 2007-03-01 | Graham Packaging Company, L.P. | Multi-functional base for a plastic wide-mouth, blow-moulded container |
AU2003256691A1 (en) | 2002-07-24 | 2004-02-09 | Graham Packaging Company, Lp | Plastic container having improved base structure and ribs |
US9969517B2 (en) | 2002-09-30 | 2018-05-15 | Co2Pac Limited | Systems and methods for handling plastic containers having a deep-set invertible base |
US9896233B2 (en) | 2002-12-05 | 2018-02-20 | Graham Packaging Company, L.P. | Rectangular container having a vertically extending groove |
US7882971B2 (en) | 2002-12-05 | 2011-02-08 | Graham Packaging Company, L.P. | Rectangular container with vacuum panels |
US6974047B2 (en) | 2002-12-05 | 2005-12-13 | Graham Packaging Company, L.P. | Rectangular container with cooperating vacuum panels and ribs on adjacent sides |
CA2707749C (en) | 2003-07-30 | 2011-02-01 | Graham Packaging Company L.P. | Container handling system |
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US7334695B2 (en) * | 2003-09-10 | 2008-02-26 | Graham Packaging Company, L.P. | Deformation resistant panels |
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US7021479B2 (en) * | 2004-06-04 | 2006-04-04 | Plastipak Packaging, Inc. | Plastic container with sidewall vacuum panels |
US10611544B2 (en) | 2004-07-30 | 2020-04-07 | Co2Pac Limited | Method of handling a plastic container having a moveable base |
PE20060579A1 (en) | 2004-09-30 | 2006-09-13 | David Murray Melrose | PRESSURE VESSEL WITH DIFFERENTIAL VACUUM PANELS |
US7823737B2 (en) | 2005-02-02 | 2010-11-02 | Graham Packaging Company, L.P. | Plastic container with substantially flat panels |
US8017065B2 (en) | 2006-04-07 | 2011-09-13 | Graham Packaging Company L.P. | System and method for forming a container having a grip region |
US8075833B2 (en) | 2005-04-15 | 2011-12-13 | Graham Packaging Company L.P. | Method and apparatus for manufacturing blow molded containers |
US7799264B2 (en) | 2006-03-15 | 2010-09-21 | Graham Packaging Company, L.P. | Container and method for blowmolding a base in a partial vacuum pressure reduction setup |
US9707711B2 (en) | 2006-04-07 | 2017-07-18 | Graham Packaging Company, L.P. | Container having outwardly blown, invertible deep-set grips |
US8747727B2 (en) | 2006-04-07 | 2014-06-10 | Graham Packaging Company L.P. | Method of forming container |
US11731823B2 (en) | 2007-02-09 | 2023-08-22 | Co2Pac Limited | Method of handling a plastic container having a moveable base |
US11897656B2 (en) | 2007-02-09 | 2024-02-13 | Co2Pac Limited | Plastic container having a movable base |
JP5238212B2 (en) * | 2007-10-17 | 2013-07-17 | 株式会社吉野工業所 | Bottle |
US8627944B2 (en) | 2008-07-23 | 2014-01-14 | Graham Packaging Company L.P. | System, apparatus, and method for conveying a plurality of containers |
US8636944B2 (en) | 2008-12-08 | 2014-01-28 | Graham Packaging Company L.P. | Method of making plastic container having a deep-inset base |
US7926243B2 (en) | 2009-01-06 | 2011-04-19 | Graham Packaging Company, L.P. | Method and system for handling containers |
US8962114B2 (en) | 2010-10-30 | 2015-02-24 | Graham Packaging Company, L.P. | Compression molded preform for forming invertible base hot-fill container, and systems and methods thereof |
US9133006B2 (en) | 2010-10-31 | 2015-09-15 | Graham Packaging Company, L.P. | Systems, methods, and apparatuses for cooling hot-filled containers |
US9150320B2 (en) | 2011-08-15 | 2015-10-06 | Graham Packaging Company, L.P. | Plastic containers having base configurations with up-stand walls having a plurality of rings, and systems, methods, and base molds thereof |
US9994378B2 (en) | 2011-08-15 | 2018-06-12 | Graham Packaging Company, L.P. | Plastic containers, base configurations for plastic containers, and systems, methods, and base molds thereof |
US8919587B2 (en) | 2011-10-03 | 2014-12-30 | Graham Packaging Company, L.P. | Plastic container with angular vacuum panel and method of same |
JP5969752B2 (en) * | 2011-10-28 | 2016-08-17 | 株式会社吉野工業所 | Plastic blow bottle |
US9254937B2 (en) | 2013-03-15 | 2016-02-09 | Graham Packaging Company, L.P. | Deep grip mechanism for blow mold and related methods and bottles |
USD727736S1 (en) | 2013-03-15 | 2015-04-28 | Ocean Spray Cranberries, Inc. | Bottle |
US9022776B2 (en) | 2013-03-15 | 2015-05-05 | Graham Packaging Company, L.P. | Deep grip mechanism within blow mold hanger and related methods and bottles |
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DE3852894T2 (en) * | 1987-02-17 | 1995-05-24 | Yoshino Kogyosho Co Ltd | Flameproof bottle-like container. |
US4863046A (en) * | 1987-12-24 | 1989-09-05 | Continental Pet Technologies, Inc. | Hot fill container |
WO1991004912A1 (en) * | 1988-04-01 | 1991-04-18 | Yoshino Kogyosho Co., Ltd. | Biaxially stretched blow molded bottle |
US5054632A (en) * | 1990-07-23 | 1991-10-08 | Sewell Plastics, Inc. | Hot fill container with enhanced label support |
US5092475A (en) * | 1991-06-28 | 1992-03-03 | Continental Pet Technologies, Inc. | Reinforced and paneled hot fill container |
US5178289A (en) * | 1992-02-26 | 1993-01-12 | Continental Pet Technologies, Inc. | Panel design for a hot-fillable container |
US5337909A (en) * | 1993-02-12 | 1994-08-16 | Hoover Universal, Inc. | Hot fill plastic container having a radial reinforcement rib |
US5341946A (en) * | 1993-03-26 | 1994-08-30 | Hoover Universal, Inc. | Hot fill plastic container having reinforced pressure absorption panels |
-
1997
- 1997-03-18 WO PCT/US1997/004288 patent/WO1997034808A1/en active Application Filing
- 1997-03-18 CA CA 2248957 patent/CA2248957A1/en not_active Abandoned
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