초록 ▼

A trolley to convey brushes for cleaning a stationary hull is drawn along the bottom and sides of the hull. Brushes are supported by variable buoyancy chambers to make the biasing of the brushes against the hull also in turn variable. The trolley can be supported and stored in a dock or alternativel

A trolley to convey brushes for cleaning a stationary hull is drawn along the bottom and sides of the hull. Brushes are supported by variable buoyancy chambers to make the biasing of the brushes against the hull also in turn variable. The trolley can be supported and stored in a dock or alternatively supported by a floating platform. There is an electrical motor drive for a chain which pulls the trolley. A diesel prime mover may be used in the floating platform to generate power for the electric motor chain drive and for the submersible motors.

대표청구항 ▼

In a boat cleaning apparatus that may be active and inactive the combination comprising: at least one pair of first brushes with pivotability, which brushes are horizontal when said apparatus is potentially active; a trolley means for conveying said at least one pair of the first brushes, wherein sa

In a boat cleaning apparatus that may be active and inactive the combination comprising: at least one pair of first brushes with pivotability, which brushes are horizontal when said apparatus is potentially active; a trolley means for conveying said at least one pair of the first brushes, wherein said trolley means is adapted to hold said at least one pair of brushes against a symmetrical boat hull and move the brushes longitudinally along said boat hull, biasing means included on said trolley means for variably forcing said at least one pair of first brushes against said hull wherein said biasing means includes chambers of variable buoyancy pressing said brushes against said hull by said variable buoyancy, and at least one pair of second brushes with pivotability that are vertical when said cleaning apparatus is inactive also conveyed by said trolley means whereby said boat hull may be cleaned without removing same from the water.