Back to results
US 5,471,821 AGranted
Apparatus for filling and sealing liquid-phased extruded containers and method
OwnerPeter B. Lindgreninventor
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
OwnerPeter B. Lindgreninventor
Estimating the term…
An apparatus and method for filling liquid-phased extruded containers comprises injecting the extruded material into a die head forming a tubular shape. The die head is hollow, or bored, from its back end to its front where the extruded material egresses to form the extrudate (pre-container) tube shape. A means for introducing a separable insert through the die head bore permits the insert to be encased within the tube while the thermoplastic material is still in its liquid or molten phase. Pinch rollers seal the tube at ends opposite that of the insert while avoiding the insert, while the line of sealed containers is pulled by gear rollers through a water cooling bath. A die punch stamp cuts the pinched, or sealed, sections of the containers separating them into individual, filled, singular units.
An apparatus suitable for continuous manufacture of filled extruded containers formed from extrudate, said apparatus comprising a material extruder connectable to a die head having a bore therethrough, a feeding means for introducing and placing an insert through the said die head bore and into said extrudate, a means for sealing said extrudate prior to solidification thereof forming a said container, and a cooling means to solidify the said container after sealing.
An apparatus suitable for continuous manufacture of filled extruded containers, said apparatus comprising a thermoplastic material extruder connectable to a die head having a bore disposed therethrough, a loader for holding separable inserts, a feeding means for placing said inserts in position for introduction through said bore, means for introducing said inserts through said bore such that said inserts, when introduced, engage molten thermoplastic material extruded through the said die head, means for sealing the said thermoplastic material to result in a continuous line of sealed containers such that the said sealing means avoids the said inserts encased therein.
A method for continuously manufacturing filled extruded containers, comprising extruding a thermoplastic material through a die head having a bore disposed therethrough, loading separable inserts into a loader, feeding said inserts onto a feeding guide, introducing an insert through said bore such that a fed insert engages molten thermoplastic material extruded through the said die head, sealing the said material resulting in a continuous line of sealed containers such that the said sealing avoids the said inserts encased therein, and separating each of the sealed containers from the preceding and succeeding container.
Dependencies are inferred from the claim text.