Electropneumatic horn system

An electropneumatic horn assembly for generating sound, wherein said horn assembly comprises:

• a compressor unit to provide a supply of compressed air, said compressor unit having a compressor air inlet and a compressor air outlet;
• a compressor housing assembly having a base portion and a movable cover portion, said housing assembly embodying an opening defining a space for reception of said compressor unit, said cover portion movably engaged with said base portion to provide access to said compressor when in an open position and to provide a sealed bonding interface when in a closed position;
• and
• a sound generating assembly comprising a diaphragm and a horn duct housing;
• wherein a plurality of vents are embedded in said cover portion for venting air adjacent an outer face of said compressor unit;
• wherein a rigidly secured spacer having a width is positioned between and secured to an inner wall of said cover portion and said outer face of said compressor unit to provide an air channel therebetween by maintaining a space corresponding to the width of the spacer, the spacer extending in a direction along an axis extending along lengths of the inner wall and the cover portion;
• and
• wherein said cover portion and said base portion comprise respective irremovable engagement means including upper and lower spring clips and a receiver that engages the spring clips for securely affixing said cover portion to said base portion around said compressor unit to maintain operational stability of said horn assembly.