Process and machine for packing pasty, liquid or semiliquid...

Details Process and machine for packing pasty, liquid or semiliquid... Process and machine for packing pasty, liquid or semiliquid...

2007-08-14

2007-08-14

Truong, Thanh (Department: 3721)

Package making

Methods

Enclosing contents within progressively formed web means

C053S555000, C452S030000, C452S035000

Reexamination Certificate

active

10486247

ABSTRACT:
Process and machine for packing pasty, liquid or semiliquid products comprising: nonstop feeding two sheets (1, 2) sandwiching ducts (3) ending in nozzles (4) feeding pasty, liquid or semiliquid products to be packed (M); nonstop longitudinally sealing the said sheets (1, 2) through longitudinal continuous beads (5) adjacent to the said continuous sleeves (6); forming through the said longitudinal sealing narrowings arranged at intervals longitudinally regular in the said sleeves (6) making possible the passage of the said ducts (3) and defining in the sleeves (6) long, wide lengths (8) and short narrow lengths (9); nonstop injecting with nozzles (4) material (M) within the said sleeves (6) which are inflated forming units (28) of material (M) with prior pressure closing of a narrow length (9) each sleeve advanced to each nozzle (4) while the sheets (1, 2) are moving forwards, and pressure closing and transversally sealing at regular intervals the said sleeves (6) filled with material (M).

REFERENCES:
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patent: 3266911 (1966-08-01), Clement
patent: 4015021 (1977-03-01), Harima et al.
patent: 4169344 (1979-10-01), Ganz et al.
patent: 4730367 (1988-03-01), Vinokur
patent: 4759170 (1988-07-01), Sawa et al.
patent: 5053239 (1991-10-01), Vanhatalo et al.
patent: 5084283 (1992-01-01), Oxley et al.
patent: 5813197 (1998-09-01), Aguzzoli
patent: 6135869 (2000-10-01), Schutz
patent: WO 00/24262 (2000-05-01), None

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