Patent ID: 7712430

Claim:
An electropneumatic horn assembly, comprising: (a) an electric compressor unit having a compressor air inlet and a compressor air outlet for the supply of compressed air; (b) a monolithic housing assembly having: (i) a first housing portion embodying an opening defining a space for reception of said compressor unit in said first housing portion, and (ii) a second housing portion substantially housing a sound wave generator system; (c) a set of one or more vents, embedded in said monolithic housing assembly, said set of one or more vents for venting air from an outer face of said compressor unit for the purpose of cooling said outer face of said compressor unit; and (d) affixing means for permanently affixing said electric compressor unit in said housing assembly whereby said means for permanently affixing prevents removal of said compressor unit and improves operational stability of said housing assembly.