Opener for opening a tubular bag comprising a pasty material

摘要

The unit has two storage chambers (114) like syringes, with outlets (120). These are attached at a coupling (130) held by a rotary collar (122) turning between locked and released positions, to a mixer casing (34) containing mixer sections (38). There is an outlet opening (40) at the far end. Preferred features: The end where flange sections form the coupling is oval. Stops and limits control the degree of collar rotation in either direction. In a development, tubular pouches of viscous components can be placed in the chambers. Further coupling arrangements, employing push-in tubes for contents extraction, are described. A capping system is provided for the outlets. As the pouches are forced forward, they are penetrated by sharp tubes for contents extraction. This forms part of a claimed opening arrangement. Further mechanical details of the unit are provided.