PRESSURE GENERATING APPARATUS FOR SPRAY

摘要

A pressure-generating appa=atus comprises a sealed plastic bag located in a the spray vessel, which is adhered permanently to the inside wall; a seat-connecting element having many pockets in its inner area; another seat-connecting element to seal the pockets. First a gas-producing component is located in each pocket-connecting element. Second, the gas producing component and delayed-starting equipment are positioned at the bottom of the pocket. The pocket expands from the bottom as gas is produced; the pocket-connecting element is separated from the seat-connecting element and is opened gradually as the pocket expands. This ensures a constant spraying pressure as the gas is continuously produced.