05272960 is referenced by 59 patents and cites 6 patents.

A machine which dispenses beverages from sachets containing a beverage-producing material injects liquid into the sachet. A pressure-sensitive base seam of the sachet is opened by liquid pressure. To prevent the base seam opening explosively and spray solids or liquid away from the beverage receptacle directly below the sachet, a heat source is employed to weaken the seam prior to opening, so that it opens non-explosively by peeling in a controlled manner. The heat source can be internal (an initial volume of hot liquid at a pressure insufficient to break the seal) or external such as a radiant source, hot air or steam. Such a machine is particularly advantageous for dispensing hot chocolate.

Title
Dispensing machine
Application Number
7/607565
Publication Number
5272960
Application Date
November 1, 1990
Publication Date
December 28, 1993
Inventor
Robert N Kinna
Bramley Green
GB
Agent
Curtis Morris & Safford
Assignee
Mars G B
GB
IPC
A47J 31/32
A47J 31/06
View Original Source