Apparatus for dispensing flowable materials from a pouch

Details Apparatus for dispensing flowable materials from a pouch Apparatus for dispensing flowable materials from a pouch

B - Operations, Transporting

67

D

B67D 7/02 (2010.01) B05C 17/01 (2006.01) B67B 7/86 (2006.01) B67D 1/00 (2006.01) B05C 17/005 (2006.01) B67D 5/02 (2006.01)

Patent

CA 2095868

An improved piston for a pouch dispenser is disclosed. The dispenser is adapt- ed to contain a pouch (52) of flowable material, and has lid (35) to keep the pouch within the dispenser and a piston which is adapted to move toward the lid and press against a first end (113) of the pouch, and push the flowable material out of the pouch through a hole in the second end of the pouch. The piston (47) has a peripheral lip (115) extending towards the second end of the pouch. The peripheral lip extends for a length sufficient to cause the film from which the pouch is made to pleat (116) in a di- rection transverse to the longitudinal axis of the dispenser when the material in the pouch is squeezed from the pouch by the pressing action of the piston. The lid (35) and piston (47) are adapted to allow the peripheral lip to nest with the lid and to prevent the pleats from hindering essentially all of the material from being squeezed out of the pouch.

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