Abstract: Separable mounting elements are adhesively affixed to a rigid foam display base and to a display surface. One element is affixed within a cavity anterior the foam base, the front of which penetratingly holds flowers and the like. A shield or cup is placed intermediate the mounting element and the foam, to resist tearing or distension of the foam, to allow non-dissolving adhesive on the foam side of the shield and other suitable adhesive between shield and mounting element, and to aid in non-rotatingly indexing the foam to a display surface. A corresponding second mounting element is first indexingly located by mating to the first mounting element; a third suitable variety of adhesive is applied to then join same to the display surface. Thereafter, the display may be easily separated from and restored to the display surface, or replaced by an alternate display.

Abstract: A spraying system includes a screw conveyor to transmit material to be sprayed from a storage container to a spray nozzle. A predetermined torque is maintained on the screw to thereby maintain a predetermined pressure on the material within the conveyor, so that an instantaneous flow of material at a predetermined pressure can be obtained when the nozzle is opened. The pressure is preferably maintained by means of a hydraulic motor designed to stall at a predetermined torque. A heating jacket for housing heated oil surrounds the screw conveyor and provides heat necessary to maintain the material therein at a predetermined temperature.