Accession Number : ADD016171

Title :   Acoustic Window.

Descriptive Note : Patent, Filed 19 Nov 92, patented 4 Jan 94,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Bullat, David M ; Bradshaw, Philip C ; Brown, Jay C

Report Date : 04 Jan 1994

Pagination or Media Count : 7

Abstract : A cost-effective, producible improved apparatus for and method of fabricating a transducer acoustic window for a marine environment has acceptable acoustic energy transmitting properties and appropriate mechanical properties to withstand the rigors associated with varying velocities of flowing water, fluctuating temperatures, changing ambient pressures, the abuse attendant operations, etc., that are routinely encountered during a prolonged deployment. The acoustic window has a cast CONAP 1556 polyurethane window portion that extends over a hull opening and on a bearing surface rim about the opening. A number of equidistantly, circumferentially spaced stainless steel inserts are molded in the cast polyurethane window portion.

Descriptors :   *ACOUSTIC WINDOWS, *PATENTS, *POLYURETHANE RESINS, *UNDERWATER ACOUSTICS, *BOLTS, *MOLDINGS, BEARINGS, COSTS, DEPLOYMENT, INSERTS, MECHANICAL PROPERTIES, OPENINGS, PRESSURE, STAINLESS STEEL, SURFACES, TEMPERATURE, TRANSDUCERS, VELOCITY, COST EFFECTIVENESS, WATER FLOW, FLOW RATE, SHIP HULLS, MOLDING TECHNIQUES

Subject Categories : Acoustics
      Couplers, Fasteners, and Joints
      Plastics

Distribution Statement : APPROVED FOR PUBLIC RELEASE