Method and apparatus for filling and closing a two-chamber plastic container
First Claim
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1. Apparatus for filling and sealing a two-chamber container comprising:
- forming means for forming two-chamber containers in a container sheet, each of said two-chamber containers having a first chamber and a second chamber;
first filling means for filling said first chamber of each two-chamber container with a first filling material;
cover feeding means for feeding a cover sheet to a position overlying said two-chamber containers;
first sealing means for sealing said cover sheet to said container sheet at a peripheral portion of said first chamber to thereby seal said first material in said first chamber;
displacing means for displacing a displaceable position of said cover sheet which overlies said second chamber to a displaced portion to provide access to said second chamber for filling;
second filling means for filling said second chamber with a second filling material;
return means for returning said displaceable portion of said cover sheet from said displaced position to a position overlying said second chamber; and
second sealing means for sealing said cover sheet to said container sheet at a peripheral portion of said second chamber to thereby seal said second material in said second chamber.
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Abstract
A method for filling and closing off a two-chamber container with different filling materials includes two sealing steps for the closing-off procedure, the first chamber being filled with the first material under sterile conditions and closed off over a first partial seal with a covering sheet, after which the second chamber is filled with the second material and closed off by means of a second partial seal with formation of a fully sealed two-chamber container.
25 Citations
10 Claims
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1. Apparatus for filling and sealing a two-chamber container comprising:
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forming means for forming two-chamber containers in a container sheet, each of said two-chamber containers having a first chamber and a second chamber; first filling means for filling said first chamber of each two-chamber container with a first filling material; cover feeding means for feeding a cover sheet to a position overlying said two-chamber containers; first sealing means for sealing said cover sheet to said container sheet at a peripheral portion of said first chamber to thereby seal said first material in said first chamber; displacing means for displacing a displaceable position of said cover sheet which overlies said second chamber to a displaced portion to provide access to said second chamber for filling; second filling means for filling said second chamber with a second filling material; return means for returning said displaceable portion of said cover sheet from said displaced position to a position overlying said second chamber; and second sealing means for sealing said cover sheet to said container sheet at a peripheral portion of said second chamber to thereby seal said second material in said second chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification