The Boeing Company

Technifab, Inc.

Htg-wyandotte, LLC

Bruce Whitman

Douglas Dean Maben

Jayant Dahyabhai Patel

Walter Forrest Frantz

Douglas E Freeman

Martin E Likozar

Steve Kalman

Cory Kunkel

Theodore Burdoff

Robert Schmidt

Theodore Burdorff

Thomas S Doppke

An aerospace vessel including a fuselage, a means for causing the fuselage to fly coupled to the fuselage, and an environmental control system within the fuselage. The environmental control system includes a duct made of closed cell thermoplastic foam, such as polyvinylidene fluoride foam.

Light weight thermoplastic flex foam and hybrid duct system

A composite structural component includes a longitudinally extending elongated tubular duct of a first material having a first coefficient of thermal expansion, and a plurality of longitudinally extending elongated reinforcing members of a second material. Each of the reinforcing members is secured to the tubular duct along a length of the reinforcing member at spaced apart locations on the tubular duct, with the second material having a second coefficient of thermal expansion less than the first coefficient of thermal expansion, such that the composite structural component has an effective coefficient of thermal expansion in the longitudinal direction that is less than 25% of the first coefficient of thermal expansion. Each of the plurality of reinforcing members is retained in a corresponding one of a plurality of longitudinally extending recesses formed in a peripheral wall of the tubular duct.

Composite structural components with reduced coefficient of thermal expansion

A composite structural component includes a longitudinally extending elongated base element and a plurality of longitudinally extending elongated reinforcing members each secured to the base element along a length of the reinforcing member at spaced apart locations on the base element. The base element is of a first material having a first coefficient of thermal expansion and a first modulus of elasticity. The plurality of longitudinally extending elongated reinforcing members are of a second material having a second coefficient of thermal expansion less than the first coefficient of thermal expansion, and a second modulus of elasticity greater than the first modulus of elasticity, such that the composite structural component has an effective coefficient of thermal expansion in the longitudinal direction that is less than 25% of the first coefficient of thermal expansion.

Thermoplastic components with reduced coefficient of thermal expansion

A method of forming a closed cell thermoplastic foam duct and a method of forming a duct and attaching it to an aircraft environmental control system. The environmental control system includes a duct made of closed cell thermoplastic foam, such as polyvinylidene fluoride foam.

Method of forming a light weight thermoplastic flex foam and hybrid duct system

A torque prevailing stud having a male component made of a shank with an outer wall that is threaded, a gripping component formed on the shank, and a wedge ramp rolled in a portion of the threaded outer wall. A female component having a body with a threaded bore that is used for engaging the male component. The threaded bore of the female component matingly engages a portion of the threaded outer wall and the wedge ramp when screwed thereon. The wedge ramp forces the threaded bore to conform to the shape of the wedge ramp thereby securing the male and female components together in a torque prevailing fit.

Torque prevailing stud

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Lorain, OH, United States of America

Bruce Whitman