Sound muffling device for an air conditioning unit

A device for muffling the sound of water droplets falling onto an upper surface of the housing of an air conditioning unit that extends beyond the side of a building, the muffling device comprising:

• a plurality of screens;
• a frame for holding said plurality of screens;
• and
• means for securing said device in spaced parallel relation with the upper surface of said housing of said air conditioning unit.

A device for muffling the sound of water droplets falling onto an upper surface of the housing of an air conditioning unit that extends beyond the side of a building, the device comprising:

• a first screen having a coarse mesh capable of breaking down the water droplets to at most a first predetermined diameter and permitting the broken down water droplets to pass through said first screen;
• a second screen disposed in a spaced-apart parallel relationship with said first screen and having an intermediate mesh capable of breaking down water droplets to at most a second predetermined diameter smaller than the first predetermined diameter passing through said first screen and permitting the broken down water droplets to pass through said second screen;
• a third screen disposed in a spaced-apart parallel relationship with said second screen and having a fine mesh capable of breaking down water droplets to at most a third predetermined diameter smaller than the second predetermined diameter passing through said second screen and permitting the broken down water droplets to pass through said third screen;
• a frame for holding said first, second and third screens in that order;
• and
• means for securing said device to said air conditioning unit with said third screen closest to and in closely spaced parallel relation with the upper surface of said air conditioning unit housing.

An apparatus comprising:

• an air conditioning unit having a housing capable of being placed through a window of a building and extending beyond a side of the building;
• a plurality of screens of different fineness of mesh for muffling the sound of water falling onto an upper surface of said housing of said air conditioning unit;
• a frame for holding said plurality of screens arranged in a spaced-apart parallel relationship and progressively according to their relative fineness with the finest mesh screen at one side of said frame;
• and
• a means for securing said frame to said housing of said air conditioning unit with the finest mesh screen closest to and in spaced parallel relation with the upper surface of said housing of said air conditioning unit.