Apparatus for metal adhesive bonding

Claim 1

IN AN APPARATUS FOR ADHESIVELY BONDING TOGETHER A A PLURALITY OF MEMBERS WITH AN ADHESIVE WHICH IS CURED BY HEAT AND PRESSURE IN WHICH ONE OF SAID MEMBERS REQUIRES APPLICATION OF DIFFERING PRESSURES TO ADHESIVELY BOND IT IN PLACE, A PRESSURE TRANSMITTING MEANS FOR TRANSMITTING A UNIFORM PRESSURE TO THE ADHESIVE DISPOSED BETWEEN THE MEMBERS TO BE BONDED TOGETHER, SAID PRESSURE TRANSMITTING MEANS COMPRISING A MULTIPLICITY OF FREE-FLOW ING DISCRETE PARTICLES CONFINED IN A COMPARTMENT WHICH IS CLOSED BY A PRESSURE APPLYING MEANS, RIGID PRESSURE VARYING MEANS IN SAID COMPARTMENT FOR TRANSMITTING A DIFFERENT PRESSURE TO AN AREA BETWEEN MEMBERS BEING BONDED TOGETHER, SAID PRESSURE VARYING MEANS HAVING ONE SURFACE AREA EXPOSED TO THE PARTICLES, AND AN OPPOSING SURFACE AREA WHICH IS SMALLER THAN SAID ONE SURFACE AREA AND WHICH IS ADAPTED TO BE IN SURFACE ABUTMENT WITH A SELECTED SURFACE PORTION OF ONE OF SAID MEMBERS WHERE A DIFFERENT PRESSURE IS REQUIRED, THE DIFFERENT PRESSURE TRANSMITTED TO SAID ONE MEMBER BEING PROPORTIONAL TO THE RATIO OF THE AREA OF THE EXPOSED SURFACE TO THE OPPOSING SURFACE, AT LEAST A FURTHER SURFACE PORTION OF SAID ONE MEMBER BEING ADAPTED TO BE EXPOSED TO SAID PARTICLES SUCH THAT DIFFERENT PRESSURES ARE CONCOMITANTLY TRANSMITTED TO SEPARATE SELECTED PORTIONS OF SAID ONE MEMBER.