Package making – With contents treating – Vacuum or inert atmosphere
Reexamination Certificate
2005-05-10
2005-05-10
Gerrity, Stephen F. (Department: 3721)
Package making
With contents treating
Vacuum or inert atmosphere
C053S550000
Reexamination Certificate
active
06889487
ABSTRACT:
An apparatus for vacuum packaging a continuous packaged body of the invention is so constructed that a seal bar and a seal table are mounted in the respective skirt parts of seal blocks opposite to each other with a tube film interposed between them, and in the case of nipping the tube film by both seal blocks plural intermittent teeth spot close the tube film on the inner sides of both skirt parts as one points in the transfer direction of a material to be packaged. Simultaneously, in ports of the face of a standing gap formed thin along the outsides of the above intermittent teeth, the tube film is flared by vacuum suction force, and from the section of the tube film cut by forcing a cutting edge in the seal bar into a receiving groove cut in the seal table, the air in the tube film is sucked through the spot closing gap and the receiving groove. By spot closing the tube film by the above intermittent teeth distortion of the film in displacement and suction of the air is restrained, and then the cut end of the tube film is heat sealed by the seal bar and the seal table.
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Gerrity Stephen F.
Ibaraki Seiki Machinery Co., Ltd.
Reising Ethington Barnes Kisselle PC
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