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Large bottle-shaped container having substantially rectangular cross sectionRelated Patent Categories: Bottles And Jars, Sidewall Structure, Contoured Sidewall (e.g., Curved, Corrugated, Ribbed, Variable Thickness, Etc.), Recess In Sidewall, Specified Gripping StructureLarge bottle-shaped container having substantially rectangular cross section description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20070187354, Large bottle-shaped container having substantially rectangular cross section. Brief Patent Description - Full Patent Description - Patent Application Claims
BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] This invention relates to a large bottle-shaped container having a substantially rectangular cross section. More particularly, the present invention relates to a bottle-shaped container that does not need to absorb a reduced internal pressure in the container by a grip thereof and that has a improved rigidity for the entire container. [0003] 2. Related Background Art [0004] So-called 64-ounce containers (having a weight capacity of about 1.8 kg and a volume capacity of about 1.8 liters) and other large containers (bottles) in the U. S. market show a shift from those having a substantially circular cross section to those having a substantially rectangular cross section, from a viewpoint of easy handling on a route of delivery and in a shop. [0005] U.S. Pat. No. 6,575,321 discloses a bottle-shaped container having a neck, a body portion including a top portion and a bottom portion, and a bottom. The body portion of the disclosed container is provided with a vacuum panel for accomodating an internal force at the bottom portion, and with grip portion at the top portion. [0006] Meanwhile, it is sometimes impossible for a large bottles to absorb a reduced internal pressure in the bottle only by means of vacuum panels of the bottom portion. For this reasons the bottle of the above cited U. S. Patent is so devised that the grip acts as an auxiliary vacuum panel in order to reduce the internal pressure that cannot be completely absorbed by the vacuum panels of the bottom portion. [0007] However, since the grip acts as an auxiliary vacuum panel, the grip by turn is forced to show a reduced rigidity. Additionally, the grip is deformed not only by the internal proof the bottle but also by an external pressure of the bottle (e.g., a force applied by the user when gripping the bottle). Then, there arises a risk that the grip is permanently deformed and that an appearance of the bottle is damaged as a result of permanent deformation. Still additionally, since the vacuum panels inevitably show a large total surface area (particularly when a further vacuum panel is formed in the top portion in addition to the vacuum panel formed in the grip), such a large total surface area of the vacuum panels by turn restricts a design freedom of the bottle. SUMMARY OF THE INVENTION [0008] In view of the above described circumstances, it is therefore an object of the present invention to provide a large bottle-shaped container having a substantially rectangular cross section, which container shows an improved property for absorbing a reduced internal pressure by the lower body, and does not need to absorb the reduced internal pressure by the grip thereof while showing an improved rigidity as a whole. [0009] In the first aspect of the present invention, the above object is achieved by providing a large container made of synthetic resin, and comprising a neck and a body; said body having a substantially rectangular cross section, and including an upper body and a lower body; said upper body containing a center of gravity of the container when filled with liquid; said upper body having a waist section containing the center of gravity; said waist section having a grip, said grip being not adapted to absorb a negative pressure in the container; at least one surface of said lower body including a vacuum panel. [0010] Preferably, said waist section has a height equal to about 20 to 40% of a height of said upper body. Preferably, said waist section has a depth of 4 to 15 mm relating to the largest diameter of said upper body. [0011] Preferably, said grip has a height not greater than about 33% of a height of said upper body. Preferably said grip has a width equal to about 35 to 80%, most preferably about 60 to 80%, of a width of a longer side of said upper body Preferably, said grip has a depth of about 5 mm or less from a wall of said waist section. [0012] Preferably, said vacuum panel has an area equal to 30.6 to 48.6% of a surface area of said lower body. Preferably, said lower body has a substantially flat label section, and said vacuum panel has an area equal to about 39.3 to 62.4% of an area of said label section. [0013] Preferably, said pressure vacuum panel has at least one transversal rib. Preferably, said transversal rib has a width not smaller than 85.0% of a width of said vacuum panel. [0014] In the second aspect of the present invention, there is provided a large container made of synthetic resin, and comprising a neck and a body, said body having a substantially rectangular cross section, and including an upper body and a lower body; said upper body containing a center of gravity of the container when filled with liquid; said upper body having a rib containing the center of gravity; said rib being not adapted to absorb a negative pressure in the container; at least one surface of said lower body including a vacuum panel. [0015] Said rib operates as a grip. [0016] Preferably, said rib has a height equal to about 2 to 10% of a height of said upper body. Preferably, said rib has a depth of 2 to 5 mm relating to the largest diameter of said upper body. [0017] Preferably, said vacuum panel has an area equal to 23.3 to 42.0% of a surface area of said lower body. Preferably, said lower body has a substantially flat label section, and said vacuum panel has an area equal to about 31.3 to 56.2% of an area of said label section. [0018] Preferably, said vacuum panel has at least one transversal rib. Preferably, said transversal rib has a width not smaller than 85.0% of a width of said vacuum panel. [0019] According to the invention, it is not necessary to provide a grip capable of absorbing the reduced internal press , at a portion (waist section or circumferential rib of the present invention) containing a center of gravity of the container when filled with liquid, so as to easily the container with high rigidity. [0020] Additionally according to the invention, the container has a vacuum panel showing a large area, so that all the negative pressure generated in the container is absorbed by the lower body, and the grip and the upper body are not affected by negative pressure to improve the rigidity of the bottle. [0021] Finally, the container according to the invention shows an improved resilience particularly at the panel by forming a transversal rib in the vacuum panel, so that it is possible to prevent permanent deformation from taking place. BRIEF DESCRIPTION OF THE DRAWINGS Continue reading about Large bottle-shaped container having substantially rectangular cross section... Full patent description for Large bottle-shaped container having substantially rectangular cross section Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Large bottle-shaped container having substantially rectangular cross section patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. 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