초록 ▼

This invention pertains to a rotary disk tool which utilizes pressurized seawater as the working fluid. When an operator engages a trigger on a novel control handle and valve assembly, pressurized seawater enters the rotary disk tool through the control handle and valve assembly into a seawater powe

This invention pertains to a rotary disk tool which utilizes pressurized seawater as the working fluid. When an operator engages a trigger on a novel control handle and valve assembly, pressurized seawater enters the rotary disk tool through the control handle and valve assembly into a seawater powered vane motor. The shaft of the seawater powered vane motor, is coupled to a drive gear. The drive gear, in turn, is in operative engagement with a driven pinion coupled to an output shaft which drives an abrasive disk. Seawater exhausted from the motor into a gear and pinion housing provides lubrication for the drive gear, driven pinion, and the bearings used with the gear and pinion. The seawater is then exhausted from the housing as a fan spray directed onto the back of the abrasive disk so as to reduce drag of the disk in water and to flush away loose material from the work surface.

대표청구항 ▼

A pressurized seawater powered rotary disk tool for treating a work surface and having an abrasive saw/grinding disk tool connected thereto and which may be removed therefrom, said seawater powered rotary disk tool comprising: a gear and pinion housing; a seawater powered vane motor rotatably mounte

A pressurized seawater powered rotary disk tool for treating a work surface and having an abrasive saw/grinding disk tool connected thereto and which may be removed therefrom, said seawater powered rotary disk tool comprising: a gear and pinion housing; a seawater powered vane motor rotatably mounted on said gear and pinion housing and removable from said housing, said seawater powered vane motor having a shaft journaled within said housing, an inlet port and an outlet port; control means having a trigger and a passageway connected to the inlet port of said seawater powered vane motor, the trigger of said control means when engaged allowing pressurized seawater to pass through said control means to the inlet port of said seawater powered vane motor so as to rotate the shaft of said Vane motor; a drive gear rotatably mounted in said housing in axial alignment with the shaft of said seawater powered vane motor, said drive gear being coupled to and removable from the shaft of seawater powered vane motor; a driven shaft rotatably mounted in said gear and pinion housing perpendicular to the axis of said drive gear, said driven shaft having an end portion extending from said gear and pinion housing; a driven pinion affixed to said driven shaft, said driven pinion being in operative engagement with said drive gear; and means for directing pressurized seawater exhausted from said seawater powered vane motor onto the back side of said saw/grinding disk tool so as to reduce the drag of said saw/grinding disk tool when said saw/grinding disk tool engages said work surface and to flush away loose material from said work surface.