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US 3,964,237 AGranted
Apparatus for the production of a product filled container
AssigneePortion Packaging Limited
InventorPoul Egon Johansen
Life of this patent
Estimating the term…
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AssigneePortion Packaging Limited
InventorPoul Egon Johansen
Estimating the term…
With the view to obviating or mitigating the disadvantages that in processes for the production of containers, for example, product-filled containers, in which processes a substantial proportion of scrap is produced and that the space occupied by a plurality of the containers prior to the product-filling thereof is considerable even if the containers are disposed in stacked relationship, there is provided a process for manufacturing a rimmed container preparatory to the filling and closing thereof from a one piece homogeneous blank, composed entirely of heat formable material containing just the requisite amount of material for forming the rimmed container to be filled, filling rim and an apparatus for performing the process, wherein the process includes the steps of uniformly heating a substantially rigid planar preshaped homogeneous blank of thermo plastic material, out to at least immediately adjacent the portion thereof adapted to form the container rim to a formable state while leaving the outermost periphery portion of the rim rigid, then while holding said rigid outermost peripheral blank portion forming the heated blank portion into a cavity, to produce a container. The invention further involves the heating of the blank to a sterilizing temperature to produce an aseptic container and subsequently filling the container e.g. with a food stuff, and closing same.
Apparatus for producing an individual rimmed plastic container preparatory to the filling and closing thereof from a relatively stiff resilient blank of predetermined shape formed entirely of heat formable material which is essentially rigid at normal ambient temperatures comprising means for supporting a supply of blanks, a rigid blank holder mounted for translating movement and means for translating same, said holder having an opening therethrough corresponding to the shape of but slightly smaller than said blank and presenting a support ledge therearound, means for delivering a blank from a supply supported on said support means and seating the outermost peripheral portion of said blank on said support ledge at a first position of said holder, said holder having means for engaging said outermost peripheral blank portion to preclude movement thereof relative to said holder, means at a second position of said holder displaced from said first position for uniformly heating the blank portion bridging said holder opening to a formable temperature while leaving said seated outermost peripheral blank portion rigid, means at a third position of said holder displaced from said second position for clamping a heated peripheral portion of the blank immediately adjacent to said seated rigid outermost peripheral portion against movement out of the plane of said outermost rigid peripheral portion and further means at said third holder position for forming a cavity from the heated blank portion within said clamped peripheral portion while same remains clamped.
Apparatus for producing an individual rimmed plastic container preparatory to the filling and closing thereof from a relatively stiff resilient blank of predetermined shape formed entirely of heat formable material which is essentially rigid at normal ambient temperatures comprising means for supporting a supply of blanks, a blank holder adapted to receive and carry a blank from a pick-up location through a heating location, and a forming location, and means for moving said holder, said holder having an opening formed therethrough of a shape corresponding to but slightly smaller than the shape of said blank and presenting a seating ledge on which the outermost peripheral portion of said blank is adapted to seat, means for delivering a blank from a supply supported on said support means to said holder at said pick-up location to seat same on said seating ledge, means provided on said holder to secure said blank in seated relation after delivery thereto and while said holder is being moved from location to location, a pair of heaters associated with said heating location and presenting a pair of planar heating surfaces adapted to be brought when said blank is moved to said heating location into contact with opposite sides of the portion of said blank bridging said seating ledge to heat same uniformly to a formable temperature while leaving said outermost peripheral blank portion rigid, means for applying resilient pressure to ensure intimate contact between said planar heating surfaces and said bridging blank portion during the heating thereof, and means associated with said forming location for forming said heated blank portion into a cavity when said heated blank is moved to said forming location to produce a rimmed container.
Apparatus for producing an individual rimmed plastic container from a relatively stiff resilient blank of predetermined shape formed entirely of heat formable material which is essentially rigid at normal ambient temperatures, then filling and closing said container comprising means for supporting a supply of blanks, a rigid blank holder mounted for translating movement and means for translating same, said holder having an opening therethrough corresponding to the shape of but slightly smaller than said blank and presenting a support ledge therearound, means for delivering a blank from a supply supported on said support means and seating the outermost peripheral portion of said blank on said support ledge at a first position, said holder having means for engaging said outermost peripheral blank portion to preclude movement thereof relative to said holder, means at a second position of said holder displaced from said first position for uniformly heating the blank portion bridging said holder opening to a formable temperature while leaving said seated outermost peripheral blank portion rigid, means at a third position of said holder displaced from said second position for clamping a peripheral heated portion of the blank immediately adjacent to said seated rigid outermost peripheral portion against movement out of the plane of said outermost rigid peripheral portion, means at said third holder position for forming a cavity from the heated blank portion within said clamped peripheral portion while same remains clamped to produce a container, means for introducing a desired product into said cavity, subsequently to the forming thereof, and means for sealing a closure to said outermost rigid peripheral portion subsequent to the introduction of said product into said cavity.
Apparatus for producing an individual rimmed plastic container from a relatively stiff resilient blank of predetermined shape formed entirely of heat formable material which is essentially rigid at normal ambient temperatures then filling and closing said container comprising means for supporting a supply of blanks, a blank holder adapted to receive and carry a blank from a pick-up location through a heating location, and a forming location, and means for moving said holder, said holder having an opening formed therethrough of a shape corresponding to but slightly smaller than the shape of said blank and presenting a seating ledge on which the outermost peripheral portion of said blank is adapted to seat, means for delivering a blank from a supply supported on said support means to said holder at said pick-up location to seat same on said seating ledge, means provided on said holder to secure said blank in seated relation after delivery thereto and while said holder is being moved from location to location, a pair of heaters associated with said heating location and presenting a pair of planar heating surfaces adapted to be brought, when said blank is moved to said heating location, into contact with opposite sides of the portion of said blank bridging said seating ledge to heat same uniformly to a formable temperature while leaving said outermost peripheral blank portion rigid, means for applying resilient pressure to ensure intimate contact between said planar heating surfaces and said bridging blank portion during the heating thereof, means associated with said forming location for forming said heated blank portion into a cavity when said heated blank is moved to said forming location to produce a rimmed container, means for subsequently introducing a product into the cavity of said container, and means for securing a closure to the rim of said container.
Dependencies are inferred from the claim text.