Electrical batteries are integrated with a disposable container of flowable material for powering a dispensing apparatus. The disposable container includes a deformable chamber for containing a predetermined quantity of material to be dispensed, and an electrically energized actuating member deforms...http://www.google.fr/patents/US4722372?utm_source=gb-gplus-shareBrevet US4722372 - Electrically operated dispensing apparatus and disposable container useable therewith
Electrically operated dispensing apparatus and disposable container useable ...
