Patent ID: 7967576

Claim:
An operating unit to generate a flow of air under pressure in aerosol therapy appliances, the operating unit comprising: a pump group which includes a head, an electric motor and a fan; and a body enclosing said pump group and formed by a bottom shell and a top shell, said bottom shell having a bottom shell edge, said top shell having a top shell edge, one of said bottom shell and said top shell being superimposed on to the other one of said bottom shell and said top shell to close said body on a transversal plane, said transversal plane being on a level with said bottom shell edge and said top shell edge, said bottom shell edge and said top shell edge being formed to self-center one of said top shell and said bottom shell with the other one of said top shell and said bottom shell, said head having an air outlet duct and an air inlet duct comprising a filter, said electric motor comprising a plurality of suspension elements in said body and said electric motor being electrically connected to a socket and a switch supported by a plate with a fuse, said bottom shell and said top shell having means for receiving and holding the air inlet duct with said filter, the air outlet duct, and the plate with said fuse, said socket, and said switch following the overlapping of one of said top shell edge and said bottom shell edge with the other of the top shell edge and said bottom shell edge upon an automated assembly of said pump group with said body, wherein each of said top shell and said bottom shell has a first recess and a slot, said first recess and said slot of said top shell being on a level with said top shell edge, said first recess and said slot of said bottom shell being on a level with said bottom shell edge, said top shell edge being aligned with said bottom shell edge, said means for receiving and holding said air inlet duct with said filter being provided by said first recess of said top shell joined with said first recess of said second shell when said body is closed to form a lateral lodging to receive the air inlet duct and the air filter, said means for receiving and holding the socket, the switch, and the plate comprising said slot of said top shell and said slot of said bottom shell, said slot of said top shell being joined with said slot of said bottom shell when said body is closed to form a lateral opening that receives and holds said socket, said switch, and said plate for connecting said electric motor to an electric supply source, said means for receiving and holding said outlet duct comprising a second recess on a top surface of said top shell, said second recess receiving said air outlet duct.