초록 ▼

A process for thermoforming laminated hollow articles including a plurality of processing steps wherein a thermoplastic material heated to a plastic state is selectively deposited area-wise on a sheet of thermoplastic material and such resulting laminate of thermoplastic materials is positioned prox

A process for thermoforming laminated hollow articles including a plurality of processing steps wherein a thermoplastic material heated to a plastic state is selectively deposited area-wise on a sheet of thermoplastic material and such resulting laminate of thermoplastic materials is positioned proximate to a female mold of a thermoforming apparatus including preferably a plug assist for a subsequent forming of laminated hollow articles.

대표청구항 ▼

A process for plastic container manufacture comprising the steps of: (A) clamping an outer portion of a preformed thermoplastic member positioned adjacent a female forming means, (B) relatively projecting a first male forming means into a face of said thermoplastic member to stretch and form said th

A process for plastic container manufacture comprising the steps of: (A) clamping an outer portion of a preformed thermoplastic member positioned adjacent a female forming means, (B) relatively projecting a first male forming means into a face of said thermoplastic member to stretch and form said thermoplastic member into a hollow article having an opening and integral side wall and end wall portions. (C) removing said hollow article from said female forming means and said first male forming means, (D) relatively positioning said hollow article in operative relationship to a second male forming means, (E) positioning a container neck forming means around at least a portion of said side wall, (F) clamping said side wall between said neck forming means and said second male forming means, (G) projecting said second male forming means within said hollow article to stretch and form said hollow article into an elongated hollow body having an opening an integral side wall and end wall portions, (H) relatively positioning a blow mold cavity means about said side wall and end wall portions of said elongated hollow body, (I) positioning sealing means adjacent said opening of said elongated hollow body to seal said opening, (J) pressurizing the interior of said resulting hollow body by injecting fluid thereinto to enlarge the volume of said hollow body to an extent sufficient to generally conform said wall portions against said blow mold cavity means thereby forming said hollow body into a container, (K) separating said blow blow molding cavity from said container, (L) trimming residual portions of said preformed member from said container adjacent said opening, and (M) removing said formed container.