# US 2014/0190927 A1 · Heat-set container and mold system thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0190927 A1 - Document ID: US20140190927A1 - Status: Published application - Kind: A1 - Application number: 14/238,789 - Filed: 2012-08-31 - Published: 2014-07-10 - Earliest claimed: 2011-08-31 - Assignees: Amcor Limited - Inventors: Michael T. Lane; Walt Paegel - Web page: https://patentgrep.com/patent/US20140190927A1 ## CPC - B29C 49/28: Blow-moulding apparatus - B29C 49/04: Extrusion blow-moulding - B29C 49/06: Injection blow-moulding - B29C 49/08: Biaxial stretching during blow-moulding - B29C 49/12: Stretching rods - B65D 1/0284: {having a discontinuous contact surface, e.g. discrete feet} - B65D 79/0081: {in the bottom part thereof} - B29C 2049/023: {using inherent heat of the preform, i.e. 1 step blow moulding} - B65D 2501/0027: Hollow longitudinal ribs - B65D 2501/0036: Hollow circonferential ribs - B65D 2501/0081: Bottles of non-circular cross-section - 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 (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) - 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 ## Abstract A heat-set container that defines a longitudinal axis is disclosed that includes a finish and a sidewall portion extending from the finish. The container also includes a base portion extending from the sidewall portion and enclosing said sidewall portion to form a volume therein for retaining a commodity. The base portion has a plurality of contact surfaces for supporting the container. The plurality of contact surfaces are spaced away from each other about the longitudinal axis. Also, the container includes a central pushup portion disposed in the base portion and extending generally toward the finish. The central pushup portion is substantially centered on the longitudinal axis, and the central pushup portion is moveable in response to internal vacuum pressure to decrease the volume. ## Claims ### Claim 1 A heat-set container that defines a longitudinal axis comprising: a finish; a sidewall portion extending from said finish; a base portion extending from said sidewall portion and enclosing said sidewall portion to form a volume therein for retaining a commodity, said base portion having a plurality of contact surfaces for supporting the container, said plurality of contact surfaces spaced away from each other about the longitudinal axis; and a central pushup portion disposed in said base portion and extending generally toward the finish, said central pushup portion being substantially centered on the longitudinal axis, said central pushup portion being moveable in response to internal vacuum pressure to decrease said volume. ### Claim 2 (depends on 1) The heat-set container according to claim 1 wherein said central pushup portion has a generally frusto-conic shape. ### Claim 3 (depends on 2) The heat-set container according to claim 2 wherein said central pushup portion comprises an upper surface spaced apart from said contact surface in a direction parallel to the longitudinal axis to define a pushup height, said central pushup portion defining a pushup entrance having a pushup width. ### Claim 4 (depends on 3) The heat-set container according to claim 3 wherein said central pushup portion is sized such that a ratio of said pushup height to said pushup width is in the range of about 1:1.3 to about 1:1.4. ### Claim 5 (depends on 3) The heat-set container according to claim 3 wherein said central pushup portion is sized such that a ratio of said pushup height to said pushup width is in the range of about 1:1.0 to about 1:1.6. ### Claim 6 (depends on 3) The heat-set container according to claim 3 wherein said central pushup portion is sized such that a ratio of said pushup height to said pushup width is in the range of about 1:1.0 to about 1:1.7. ### Claim 7 (depends on 3) The heat-set container according to claim 3 wherein said central pushup portion is sized such that a ratio of said pushup width to an overall width of said base portion is in the range of about 1:2.9 to about 1:3.1. ### Claim 8 (depends on 3) The heat-set container according to claim 3 wherein said central pushup portion is sized such that a ratio of said pushup width to an overall width of said base portion is in the range of about 1:2.5 to about 1:3.5. ### Claim 9 (depends on 3) The heat-set container according to claim 3 wherein said central pushup portion is sized such that a ratio of said pushup width to an overall width of said base portion is in the range of about 1:1 to about 1:4. ### Claim 10 (depends on 1) The heat-set container according to claim 1 wherein said central pushup portion is generally conical extending from a major width to a minor width. ### Claim 11 (depends on 10) The heat-set container according to claim 10 wherein said major width is generally less than about 50 mm. ### Claim 12 (depends on 10) The heat-set container according to claim 10 wherein said minor width is generally greater than about 5 mm. ### Claim 13 (depends on 10) The heat-set container according to claim 10 wherein said conical shape defines a pushup wall angle of less than about 45 degrees relative to the longitudinal axis. ### Claim 14 (depends on 1) The heat-set container according to claim 1, wherein the central pushup portion can include a top surface that is centered on the longitudinal axis and a side surface that extends away from the top surface toward the contact surfaces, wherein the at least one of the top surface and the side surface changes in contour in response to internal vacuum pressure. ### Claim 15 (depends on 14) The heat-set container according to claim 14, wherein the at least one of the top surface and the side surface is convexly curved. ### Claim 16 (depends on 14) The heat-set container according to claim 14, wherein the at least one of the top surface and the side surface is concavely curved. ### Claim 17 (depends on 1) The heat-set container according to claim 1, wherein the central pushup portion includes a top surface that is defined by a plurality of lines that are arranged about the longitudinal axis, the plurality of lines arranged in one of a polygonal shape, a plurality of convex curves, a plurality of concave curves, and an alternating arrangement of convex and concave curves. ### Claim 18 A mold system for forming a heat-set container having a central pushup portion disposed in a base portion thereof, the central pushup portion substantially centered on a longitudinal axis of the container and extending generally toward an interior of the container, the base portion having a plurality of contact surfaces for supporting the container, said plurality of contact surfaces spaced away from each other about the longitudinal axis, the base portion bound by a sidewall portion to hold a commodity, said mold system comprising: a sidewall system for molding the sidewall portion of the container; and a base system for molding the base portion of the container, said base system operable to form an entirety of the base portion of the container including the central pushup portion and the plurality of contact surfaces. ### Claim 19 (depends on 18) The mold system according to claim 18, further comprising: a pushup member operably coupled with said base system, said pushup member being movable being an extended position and a retracted position, said pushup member stretching the central pushup portion of the container in said extended position, said pushup member being separate from the central pushup portion of the container in said retracted position. ### Claim 20 (depends on 18) The mold system according to claim 18 wherein said base system is at a first temperature and said sidewall system is at a second temperature, said first temperature being different than said second temperature. ### Claim 21 (depends on 20) The mold system according to claim 20 wherein said first temperature is higher than said second temperature. ### Claim 22 (depends on 20) The mold system according to claim 20 wherein said first temperature is lower than said second temperature. ### Claim 23 (depends on 18) The mold system according to claim 18 wherein said base system is bound by said sidewall system.