Lockheed Martin Corporation

Other

Todd Charles Gloo

Raymond Porzio

David J Erickson

James D Weigner

Blake A Carnahan

Michael James Avery

William D Putzer

Michael R Obleman

A tape cast transducer element assembly comprises a tape cast transducer element including a multi-layer piezoelectric stack diced from a sintered piezoelectric body formed from a plurality of thin film tape layers, the film thin tape layers sintered to produce a final density. A conductive film coats select ones of the thin film tape layers such that conductive layers of different polarities are exposed on opposing sides of the multi-layer piezoelectric stack. Electrodes are coupled to the conductive layers. Electrical leads are coupled to each electrode. A head mass is configured to encapsulate a top portion of the stack. A tail mass is configured to encapsulate a bottom portion of the stack. At least one coupling arrangement extends from a top surface of the head mass through the cross-sectional area of the head mass into the tail mass such that the stack is contained in a rigid assembly under compression.

Tape cast multilayer sonar transducer

A mechanical joint is provided comprising a bracket having a first elongated opening formed therein. An alignment guide comprising a second elongated opening formed therein is configured to rotatably attach to the bracket and is moveable between a first, floating position, and a second, non-floating position. In the first position the first elongated opening of the bracket and the second elongated opening of the alignment guide are axially aligned with one another and define a single elongated opening. In the second position the first elongated opening of the bracket and the second elongated opening of the alignment guide are partially aligned with one another and define a generally circular opening. The alignment guide is configured to slideably attach to a moveable end of a linear actuator.

Floating clevis mechanism

A fall protection system having two telescoping supports positioned at either end of a job location in combination with conventional ladders. The two supports retain and securely attach to a horizontal support beam that is the anchoring location for a fall protection harness. The two supports may also be laterally interconnected to the two ladders, which may additionally support a conventional walk board via ladder jacks. A user may then use the walk board to perform installations or repairs above the minimum height necessary for fall protection and be secured against a fall by attaching via a harness and strap to the cross-bar.

Fall protection system

A manufacturing process provided herein pertains to a single-piece, multi-layer piezoelectric stack in a sonar transducer element utilized in acoustic arrays requiring many thousands of elements. A slurry formed by mixing ceramics, powders, and binders is filtered, dried and cast into a thin film on a moving substrate. When the film has dried, it is removed from the substrate and layered into piezoelectric stacks. Screening a pattern of conductive platinum ink onto a desired layer forms electrodes. Applied heat and pressure forms a unitary body with electrically accessible layers. Burning removes the binders and sintering produces a final density. Dicing the body exposes the desired electrode polarities. A strip of conductive material is applied to connect the electrodes of like polarity and the ceramic parts are polarized. The transducer elements may be arrayed to conform to the curved surfaces such as a ship's hull.

Method of manufacturing a tape cast multilayer sonar transducer

A transducer comprises a longitudinal tubular member symmetrically disposed about a central longitudinal axis, the tubular member having a slot extending from the front end of said member to the rear end of the member, the slot extending parallel to the central longitudinal axis; a stack comprising a single element or plurality of vibratory elements arranged from a first to a second end and; a mounting arrangement for mounting the said stack across the inner wall of said tubular member on a line relatively transverse to said longitudinal central axis. The mounting arrangement includes a layer of solid lubricant engaging opposite ends of the stack, enabling the stack to move in a direction of the central axis when the stack exhibits vibratory motion.

Longitudinally driven slotted cylinder transducer

A longitudinally driven slotted transducer has a tubular member with an axial slot extending from one end to the other end. A drive assembly is disposed across the inner wall of the tubular member and supported by journal bearing surfaces extending from opposing sides of the inner wall to locate the drive assembly in a position offset from the longitudinal central axis of the tubular member. The interface between the drive assembly and tubular member comprises a layer of solid lubricant material mounted on the journal bearing type surfaces.

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Manlius, NY, United States of America

Todd Charles Gloo