Plate spring or retaining grid for a bunch cylindrical elements engaged in a heat exchange process

Claim 1

A SUPPORTING GRID FOR SUPPORTING A PLURALITY OF ELEMENTS ENGAGED IN A HEAT EXCHANGE PROCESS AGAINST SIDEWAYS SHIFTING COMPRISING: A PLURALITY OF GRID STRIPS CONNECTED TOGETHER TO FORM THE SIDEWALLS OF A PLURALITY OF COMPARTMENTS HAVING PARALLEL AXES; A PLATE SPRING EXTENDING LONGITUDINALLY IN EACH COMPARTMENT, SAID PLATE SPRING HAVING A CONTINUOUS SURFACE FACING THE SIDEWALL OF THE RESPECTIVE COMPARTMENT, SAID SPRING HAVING A CENTRAL ARCH-LIKE BEND PROJECTING TOWARD THE CENTRAL OF THE RESPECTIVE COMPARTMENT FOR ENGAGING AN ELEMENT THEREIN AND HAVING AT EACH END OF THE ARCH-LIKE BEND A SMALLER BEND FACING THE OPPOSITE DIRECTION, SAID SPRING FURTHER HAVING STRAIGHT END PORTIONS WHICH ENGAGE THE SIDEWALL OF THE RESPECTIVE SIDEWALL, EACH PORTION EXTENDING LONGITUDINALLY OUTWARDLY FROM THE RESPECTIVE SMALLER BEND SO THAT THE SURFACE OF THE END PORTION ENGAGING THE SEDEWALL IS PART OF SAID CONTINUOUS SURFACE, EACH OF SAID SMALLER BENDS PROJECTING THROUGH AN APERTURE IN THE ADJACENT SIDEWALL AND ENGAGING ONLY THAT EDGE OF THE RESPECTIVE APERTURE WHICH IS ADJACENT THE STRAIGHT END PORTIONS OF THE PLATE SPRING TO THEREBY FASTEN SAID PLATE SPRING TO SAID ADJACENT SIDEWALL; AND AN ELEMENT HOLDER IN EACH COMPARTMENT ENGAGING THE SIDEWALL OPPOSITE THE RESPECTIVE PLATE SPRING AND HAVING A PORTION PROJECTING TOWARD THE CENTER OF THE COMPARTMENT FOR ENGAGING AN ELEMENT THEREIN ON THE OPPOSITE SIDE FROM THE RESPECTIVE PLATE SPRING.