Photographic film unit with processing container

Claim 1

A PHOTOGRAPHIC FILM UNIT COMPRISING, IN COMBINATION, A SUPPORT LAYER, A PHOTOSENSITIVE LAYER INCLUDING A MATERIAL SELECTED FROM THE CLASS CONSISTING OF THE PHOTOSENSITIVE HEAVY METAL SALTS, FERRIC SALTS AND DIAZONIUM COMPOUNDS SUSPENDED IN A SUPPORTING MEDIUM AND AN IMAGE-RECEIVING LAYER, SAID LAYERS BEING BONDED TOGETHER IN FACE-TO-FACE CONTACT TO FORM A LAMINATE IN WHICH SAID SUPPORTING MEDIUM ACTS AS THE BONDING AGENTS, THE BOND BETWEEN SAID LAYERS COMPRISING AN AREA THEREOF WHICH EXTENDS TO AN EDGE OF SAID LAMINATE AND IS EXPOSED AND TREATED WITH A PROCESSING FLUID, A COLLAPSIBLE CONTAINER CARRYING A VISCOUS FLUID PROCESSING COMPOSITION INCLUDING AN AGENT CAPABLE OF REACTING WITH SAID AREA OF SAID PHOTOSENSITIVE LAYER, FOLLOWING EXPOSURE THEREOF, TO PRODUCE A VISIBLE IMAGE, SAID CONTAINER HAVING LIPS DEFINING A DISCHARGE PASSAGE THROUGH WHCIH HE FLUID CONTENTS OF SAID CONTAINER CAN BE EJECTED AND MEANS FOR SECURING SAID CONTAINER AT SAID EDGE OF SAID LAMINATE EXTERIORLY THEREOF AND FORMING A SUBSTANTIALLY FLUID-TIGHT SEAL BETWEEN SAID LIPS AND PORTIONS OF THE OUTER LAYER OF SAID LAMINATE AT SAID EDGE, WHEREBY HYDRAULIC PRESSURE GENERATED WITHIN SAID FLUID WILL TENDER TO FORCE SAID FLUID BETWEEN THOSE TWO LAYERS OF SAID LAMINATE BETWEEN WHICH THE BOND FORCES ARE WEAKEST.