Gravatt

Lynn M. Gravatt, Seattle, WA US

Patent application number	Description	Published
20110030380	HIGH STIFFNESS SHAPE MEMORY ALLOY ACTUATED AEROSTRUCTURE - A shape memory alloy (SMA) actuated aerostructure operable to dynamically change shape according to flight conditions is disclosed. Deformable structures are actuated by SMA actuators that are coupled to face sheets of the deformable structures. Actuating the SMA actuators produces complex shape changes of the deformable structures by activating shape changes of the SMA actuators. The SMA actuators are actuated via an active or passive temperature change based on operating conditions. The SMA actuated aerostructure can be used for morphable nozzles such as a variable area fan nozzle and/or a variable geometry chevron of a jet engine to reduce engine noise during takeoff without degrading fuel burn during cruise.	02-10-2011

Patent application number	Description	Published
20090298971	NOVEL WAX DISPERSION FORMULATIONS, METHOD OF PRODUCING SAME, AND USES - Aqueous wax dispersions useful as surface modifiers for paints, inks and coatings. More particularly, aqueous particulate wax dispersions useful as surface modifiers to provide improved properties in primers, paints, inks and other coating formulations. The dispersions are stable, substantially homogenous, have a high solids concentration at low viscosities, and comply with the applicable FDA regulations for use in food packaging applications.	12-03-2009