Accession Number : ADD015125

Title :   Seawater Hydraulic Rotary Disk Tool.

Descriptive Note : Patent,Filed 8 May 90, patented 13 Aug 91,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Farber, Bruce ; Barradas, Scott ; Wyman, David B ; Tausig, Wayne ; Caudy, Donald W

Report Date : 13 Aug 1991

Pagination or Media Count : 11

Abstract : 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.

Descriptors :   ABRASIVES, ASSEMBLY, BEARINGS, CONTROL, DISKS, DRAG, DRIVES, FANS, FLUIDS, GEARS, HOUSING(DWELLINGS), LUBRICATION, MATERIALS, OUTPUT, PRESSURIZATION, ROTATION, SEA WATER, SHAFTS(MACHINE ELEMENTS), SPRAYS, SURFACES, TOOLS, VALVES, WATER

Subject Categories : Hydraulic and Pneumatic Equipment
      Machinery and Tools

Distribution Statement : APPROVED FOR PUBLIC RELEASE