Patent ID: 8870040
Filing Date: 2014-10-28
Classification: A21C,A23G

Abstract:
1. A piping bag comprising in combination a two part nozzle and a pouch formed from a flexible material having a dispensing opening defined by conically inclined walls for dispensing thick, viscous fluids therethrough comprising, in combination; wherein, upon actuation of said screw means, internally facing portions disposed within a hollow interior of said nozzle tip intermediate said screw means and said nozzle tip outlet opening and externally facing portions intermediate said screw means and said nozzle base outlet opening are shaped in a manner so as to move to an intersecting relationship around an annular path of narrow axial extent to trap a wall of said pouch therebetween and form a seal, and wherein said nozzle base is disposed on the interior of the conically inclined walls of said dispensing opening and said nozzle tip is disposed on the exterior thereof with said conically inclined walls of the flexible material projecting into the interior of said tip intermediate said outlet opening of said base and said outlet opening of said tip, characterized wherein the conically inclined walls of the projecting film material are sandwiched between the externally facing portions intermediate said screw means and said nozzle base outlet opening and the internally facing portions intermediate said screw means and said nozzle tip outlet opening to form an internal seal therewith, and wherein the shoulder of said nozzle base and the wall of said nozzle tip provide a narrow sealing band for the conically inclined walls of the projecting film material disposed intermediate said screw means and said outlet opening of said nozzle base.