Two-chamber compressed-gas pack and process for producing it

Details Two-chamber compressed-gas pack and process for producing it Two-chamber compressed-gas pack and process for producing it

B - Operations, Transporting

65

D

113/6, 222/78.8

B65D 83/14 (2006.01)

Patent

CA 1330658

ABSTRACT In two-chamber compressed-gas packs, a concertina collar reversing during movement in the can body is fastened by means of its orifice region in a seam or in the upper part of the can body, to guarantee the necessary sealing between the product chamber and the propellant chamber. The disadvantage of packs of this type is that multipart can bodies have to be used unavoidably and/or a supporting ring inserted in the concertina builds up such a high frictional force that the discharge of the filling material is impeded because of a lack of differential pressure between the chambers. The disadvantages are avoided by fastening the collar over its entire region to the inner wall of the can body.

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