Package making – Closing packages and filled receptacles – By means adapted to engage outturned seam of package cover
Patent
1985-04-18
1986-12-02
Coan, James F.
Package making
Closing packages and filled receptacles
By means adapted to engage outturned seam of package cover
53DIG2, 493209, 156510, B65B 3102
Patent
active
046254927
ABSTRACT:
The device comprises a support rack having a plurality of trays for supporting in a horizontal position air-impermeable plastic bags containing the products to be sterilized, each bag having an open end which is engaged through one of a plurality of vertically spaced horizontal slits in a vertical face of the support rack, each slit being defined by a pair of sealing bars comprising a fixed bar and a movable bar which can be moved into engagement with the fixed bar to compress and seal the open end of the plastic bag, the movable bar of each pair of sealing bars being actuated by a linear actuator having a direction of movement which is parallel to the longitudinal direction of the sealing bars, and by a conversion mechanism which is arranged for converting the direction of movement of the linear actuator into a movement orientated perpendicularly to the longitudinal direction of the sealing bars and which acts on the movable sealing bar at two longitudinally spaced points thereof, the arrangement being such that the stroke of the movable sealing bar is at least 5 mm, the conversion mechanism comprising a control bar coupled to the linear actuator, a pair of ramp-shaped cams and a pair of rollers coacting with the cams, respectively, the cams being carried by one of the movable sealing bar and control bar, the rollers being carried by the other of the movable sealing bar and control bar, and the control bar extending between the movable sealing bar of one pair of sealing bars and the fixed bar of an adjacent pair of sealing bars, other rollers being provided between the control bar and the adjacent fixed sealing bar.
REFERENCES:
patent: 2820403 (1958-01-01), Plough et al.
patent: 2865152 (1958-12-01), Windstrup et al.
patent: 3509686 (1970-05-01), Bergstrom
patent: 3965333 (1976-06-01), Elsner
patent: 4242852 (1981-01-01), Orliaguet et al.
patent: 4490961 (1985-01-01), Raque
Coan James F.
MAJ
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