USA As Represented by Secretary of the Navy

James Cassidy

Nicholas Bitsakis

Richard F Hubbell

A large panel surface planer is provided. The planer has a flat platform d as a mounting base. A pair of channel rails are clamped to the mounting base using c-clamps at the ends of each channel rail. A workpiece is secured to the flat platform using one or more pairs of back-to-back clamps which clamp both the workpiece and the flat platform. A pair of rectangular guide bars are clamped to and aligned orthogonally with the channel rails using a c-clamp at each end of each guide bar. A tool stop is also clamped at the channel rail-guide bar intersection providing both a tool stop and a spacer for alignment of the spacing between the guide bars. A cutting tool, such as a router, is then manually moved across the surface of the workpiece using the guide bar to hold the tool in position (both height and lateral position). After planing a particular set position, it is necessary to manually reposition the guide bar for the next cut and to continue sequentially until the entire workpiece has been planed.

Large panel surface planer

An ejection pump apparatus of a torpedo launching system is provided with improved water piston which is more stable during use and which enables the intake end of the water cylinder and the sea valve to have a smaller diameter than that of the piston. In order to assemble the piston through the smaller diameter opening, the piston is segmented into four pie-shaped segments which are assembled together in adjacent relation with bolt fasteners that extend through the sidewalls of the segments. The outer wall of the piston includes a circumferential slot which divides the outer wall into two spaced bearing lands which provide the piston with more stability. The circumferential slot also enable water to flow through the sidewall of the piston into the piston and outwardly through an open top thereof.

Segmented flow-through piston for use in a torpedo launching system

A cascade orificial resistive device for throttling fluid flow which minies acoustic noise and internal vibrations is described herein. The device has a hollow body defining a fluid passageway, a plurality of perforated plates mounted within the passageway, a fixed end ring adjacent one end of the perforated plates, and a threadable end ring adjacent an opposite end of the perforated plates to place the plates in compression. Each of the perforated plates is a single piece molded plate having an integral outer ring and an integrally formed center keying mechanism as well as a plurality of orifices. The keying mechanism formed on each plate is designed so that adjacent ones of the plates have their orifices misaligned. In this manner, a pressure drop across each plate is created and the fluid flow through the device is throttled. The device of the present invention has utility in a number of onboard marine vessel systems wherein reduced acoustic noise and internal vibrations are particularly desirable.

Cascade orificial resistive device

A self-actuating slide valve system for launching a device in a fluid envnment is provided. An interior channel, in which the device is positioned, is provided with first and second openings in its radial walls for allowing the passage of pressurized fluid into the interior channel. The first opening is located at least partially behind a tail end of the device and the second opening is located forward of the first opening. A sleeve is slidably fitted within a portion of the interior channel and around at least a portion of the device. The sleeve is movable between at least a first and second position. In the first position, the sleeve prevents the pressurized fluid from entering the interior channel through the first opening. In the second position, the sleeve allows the pressurized fluid to enter the interior channel through the first opening whereby the pressurized fluid can act on the tail end of the device to launch same through an axial opening of the interior channel. In this way, the interior channel, the sleeve and the circumferential extremity define a holding volume in communication with the second opening that is: (1) supplied with the pressurized fluid to maintain the sleeve in its first position and, (2) evacuated of the pressurized fluid to permit the sleeve to attain its second position.

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Wakefield, RI, United States of America

James Cassidy