PRECISION HAND-HELD SYSTEM FOR DISPENSING VISCOUS MATERIALS FROM A FLEXIBLE POUCH AND METHOD OF DISPENSING VISCOUS MATERIALS

摘要

A precision dispensing system and method of use is disclosed. The system includes a hand-holdable dispensing gun and a flexible pouch for dispensing metered amounts of a flowable material. The pouch is formed of a pair of panels of a flexible sheet material that are sealed together to form a pair of nozzles in communication with the flowable material in the pouch. The panels are cut along lines to form finger grip portions enabling one to tear open the nozzles, while leaving the portion of the pouch that is torn still attached to the pouch. The dispensing gun includes a pair of hinged sections defining an interior chamber. A piston is located at one end of the chamber and an end wall is located at the other end thereof. The end wall has passageway in it and is formed by the hinged sections when they are closed. The pouch is arranged to be disposed within the chamber with its nozzles extending out of the passageway.

主权项

1. A flexible pouch for use in a dispensing gun for dispensing metered amounts of a flowable material disposed within said pouch, said pouch comprising a hollow body formed of a pair of panels of a flexible sheet material, said panels being secured together along a pair of side edges by respective side edge seals and along a front edge by a front edge seal, one of said side edge seals and said front edge seal forming a first corner of said pouch, the other of said side edge seals and said front edge seal forming a second corner of said pouch, said panels at said first corner being secured together by a first corner seal, said first corner seal forming one side edge of a first dispensing nozzle, said panels at said second corner being secured together by a second corner seal, said second corner seal forming one side edge of a second dispensing nozzle, said panels also being secured together at an intermediate portion of said front edge seal by an intermediate seal, said intermediate seal forming another side edge of said first nozzle and another side edge of said second nozzle, said panels being cut along first cut lines adjacent to said first corner seal between said first corner seal and said front edge seal to form a first finger grip portion, a portion of each of said panels contiguous with said front edge seal at said nozzles forming a respective tear line along which said panels may be torn by pulling on said first finger grip portion to open said nozzles, and with the portion of said package which is torn along said tear lines remaining secured to other portions of said pouch.