UNDERWATER GENERATOR OF INTIMIDATING SOUNDS Russian patent published in 2012 - IPC A01M29/00 

FIELD: agriculture.

SUBSTANCE: invention relates to the field of ecology, in particular to means of protection of wild animals, mainly for non-traumatic intimidating of water inhabitants from the local areas dangerous for their lives. The underwater generator comprises a working chamber with an exhaust outlet, a locking chamber with a piston, a front valve, and autonomous air ducts to each chamber. The body of the locking chamber is rigidly mounted on the flange of the housing of the working chamber opposite to the exhaust outlet. In the flange an axial through hole with a socket for a tight seal is provided. The piston and the front valve are separated and mounted on the ends of the additional rod passed through the axial through hole in the flange of the working chamber housing. The autonomous air duct of the locking chamber is brought into the cavity closed by the cylinder of the locking chamber housing, the piston and the housing flange of the working chamber, and the cavity closed by the cylinder of the locking chamber housing, the piston and the flange of the locking chamber housing, forms a compensating compartment which is not connected to the autonomous air duct. The bodies of the working and the locking chambers form a single body of the generator, and the flange between the working chamber and the locking chamber form a rigid partition between the chambers.

EFFECT: increased efficiency of sound generation due to removal of obstacles in exhaust of air in the exhaust passage.

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