Ships – Implements – Hull cleaning
Patent
1980-06-06
1981-07-28
Basinger, Sherman D.
Ships
Implements
Hull cleaning
114230, 405 64, 405 66, 405 68, B63B 5900
Patent
active
042804388
ABSTRACT:
A selectively floatable protective shroud is disclosed for protecting a boat hull from fouling by marine organisms. The assembly consists of an inflatable, elongated toroidal bladder with an inner opening larger than the circumference of the hull of the boat at its water line. The bladder has an inflation nozzle which is connected to a gas pump, for controllably inflating the bladder. A continuous, flexible, water impervious shroud has a circumferential edge mounted about the circumference of the toroidal bladder for protecting the boat hull, when deployed about the boat. By controllably inflating the bladder, the shroud is selectively brought from a submerged position beneath the boat to a deployed position enveloping the hull of the boat so as to protect the hull from fouling by marine organisms. A water pump is disclosed being connected to a water drain nozzle mounted on the flexible shroud, for controllably pumping out sea water from the region between the flexible shroud and the boat hull. Various embodiments for guide members are disclosed which are mounted to the sea bed floor and are connected to the bladder for guiding the shroud from the submerged position to the deployed position enveloping the hull of the boat. Various control and interlock mechanisms are disclosed for conveniently operating the system from onboard the boat.
REFERENCES:
patent: 2912954 (1959-11-01), Jensen
patent: 3142283 (1964-07-01), Fisher
patent: 3205851 (1965-09-01), Wiswell, Jr.
patent: 3570256 (1971-03-01), Thompson
patent: 3599434 (1971-08-01), Missud
patent: 3839870 (1974-10-01), Ryan
patent: 3922861 (1975-12-01), Grihangne
Basinger Sherman D.
Miller Stanley M.
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