General Electric Company

Unison Industries, Inc.

John D Hand

Bernard Albert Luschek

Dennis Alan McQueen

Eric Jon Christianson

Kevin Todd Bowers

Wendell Gaylon Whitehouse

Walter Arthur Hundley, Jr

Lonnie R Stewart

Jerry Wayne Myers

Michael J Gilloon

Jerry W Myers

Michael Peoples

A method of assembling a heat exchanger in a gas turbine engine assembly is provided. The method includes providing a structural body including a wall having an elongated slot, providing a heat exchanger operably associated with a bracket, and providing a slip joint for coupling the bracket to the structural body. The slip joint includes a standoff, an elongated member, and a biasing member disposed about the elongated member. The standoff is inserted through the wall so that the biasing member imparts a predetermined biasing force between the bracket and the structural body. The slip joint allows relative sliding movement between the bracket and the structural body when a sliding force due to thermal expansion or contraction is greater than the biasing force.

Method of mounting a heat exchanger in a gas turbine engine assembly

A check valve is provided that includes a valve housing that has a side wall and a flow path therethrough, the side wall defining the flow path. The flow path includes an inlet, an outlet, and a centerline extending between the inlet and the outlet. At least one control member is positioned in the flow path and movable between a first position, wherein fluid flow through the valve housing is substantially prohibited and a second position wherein fluid flow is permitted. The side wall includes a stop configured to limit movement of the at least one control member at a pre-determined stop angle relative to the flow path centerline.

Methods and apparatus for regulating airflow supply systems

Novel polyimide prepolymers with improved mold flow characteristics and enhanced physical properties when thermoset, are provided by heating a difunctional amine and an anhydride of an unsaturated dicarboxylic acid in a solvent at a temperature not in excess of 75.degree. C. until all of the amine groups are reacted, then, without isolating the reaction product, heating it with more difunctional amine in a solvent at a temperature not in excess of 75.degree. C. until formation of a prepolymer is substantially complete.

Solution process for the preparation of polyimides from diamines and

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Pittsfield, MA, United States of America

John D Hand