Ships – Implements – Hull cleaning
Patent
1987-02-06
1987-10-06
Peters, Jr., Joseph F.
Ships
Implements
Hull cleaning
114330, 114333, 114121, 114124, 114125, B63B 5910
Patent
active
046975365
ABSTRACT:
Vessels and the like require cleaning either periodically or whenever a need arises to remove various living things such as seaweeds and shells or contaminants such as oil for the sake of appearance and proper performance. Divers were conventionally employed to manually remove them one by one using a scraper as one means to remove such substances. Such manual operation is, however, extremely inefficient, involving great amounts of time and labor especially for large ships. According to the present invention, the main body of a cleaning apparatus is pressed against an underwater object to be cleaned by means of impellers which are provided substantially at the center of the main body and driven to rotate, whereby cleaning brushes which are provided at the bottom of the cleaning apparatus concentrically with the impellers are rotated to remove substances adherent to the object while the cleaning apparatus is manipulated to run on the object's surface. Two pairs of an impeller and a brush are provided in parallel at the normal angle to the direction of forward and backward movement of the cleaning apparatus. The impellers and the brushes are driven by the same driving source as they are connected to the impellers by means of a universal joint.
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Brahan Thomas J.
Peters Jr. Joseph F.
West Tsusho Co., Ltd.
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