Ships – Implements – Hull cleaning
Patent
1976-08-24
1977-11-15
Blix, Trygve M.
Ships
Implements
Hull cleaning
B63B 5902
Patent
active
040580750
ABSTRACT:
A marine life growth inhibitor device is disclosed for inhibiting marine life on the outer surface of a submerged object such as a boat. The device includes a controller connected to a source of electrical power and a plurality of speakers electrically connected to the controller and attached at predetermined locations on the interior of the boat's hull, whereby vibrations may be transmitted through the hull. The controller may also include a transformer for reducing the voltage of the alternating current power source. Each of the plurality of speakers has a speaker diaphragm having a first and a second speaker diaphragm side. Each of the speakers is mounted in a speaker housing secured to the hull of the boat for enabling transfer of acoustical energy from both the first and second side of the speaker diaphragm to the boat hull to inhibit the growth of marine life on the exterior surface of the boat hull. The speakers are selected to produce acoustical vibration in the audible range.
REFERENCES:
patent: 2366162 (1945-06-01), Vang
patent: 2667706 (1954-02-01), Morse et al.
patent: 3089562 (1963-05-01), Morgillo
patent: 3391754 (1968-07-01), Montanaro
patent: 3947635 (1976-03-01), Frankman
Blix Trygve M.
Frijouf Robert F.
Guito, Jr. Ralph M.
Hooper Walter L.
Sotelo Jesus D.
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