USA As Represented by Secretary of the Navy

John R Myers

Donald J Hackman

Robert T Hoffman

Wayne R Tausig

Don W Caudy

Bruce Farber

William R Dick

Scott Barradas

David B Wyman

Donald W Caudy

This invention pertains to a rotary disk tool which utilizes pressurized water 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.

Seawater hydraulic rotary disk tool

A controlled gas generator system is provided which has a reaction chamber, he reaction chamber having top and bottom ends. A bed of reactant material is disposed within the chamber intermediate its top and bottom ends. Liquids are located within the chamber, one of the liquids being nonreactive with the reactant. The liquids are dissimilar in specific gravity so that the liquids interface substantially along a cross-sectional plane of the chamber. With this arrangement, gas will be produced when the interfacial plane is vertically disposed on one side of the bed of reactant material, and gas will not be produced when the interfacial plane is vertically disposed on an opposite side of the bed of reactant material. Provision is made for selectively adjusting the vertical position of the interfacial plane above or below the bed of reactant material so that gas can be selectively generated.

Controlled gas generator system

Growing community of inventors

Columbus, OH, United States of America

John R Myers