1
Glen T Eisenbrey, James J Childress: Acceleration activated joystick. Exergame, Stratton Ballew, May 14, 1996: US05516105 (352 worldwide citation)

A video game user interface device that allows the user to play standard video games using realistic arm, leg and body movements which relate to the various activities portrayed in the video game being played. The device is sensitive to acceleration and outputs a signal to the video game controller ...


2
Mark S Alston, Joseph P Brown, James J Childress: Composite patches having Z-pin reinforcement. The Boeing Company, John C Hammar, March 16, 1999: US05882756 (52 worldwide citation)

The strength of composite patches is improved over conventional bolted or bonded patches by including Z-pins in the patch/parent structure interface to provide a mechanical link with small stress concentration between the patch and the parent structure. In some cases, we achieve a stronger repair re ...


3
James J Childress: Z-pin-reinforced sandwich structure. The Boeing Company, John C Hammer, September 28, 1999: US05958550 (42 worldwide citation)

A method of forming a pin-reinforced foam core sandwich structure (10) including placing first and second face sheets (12), (14) on opposite sides of a foam core (16), the foam core (16) having at least one low density sublayer (28), an optional high density foam sublayer (26), and a plurality of Z- ...


4
James J Childress: Composite/metal structural joint with welded Z-pins. The Boeing Company, John C Hammar, January 26, 1999: US05862975 (40 worldwide citation)

A double shear lap joint is formed between metal and composite structure by welding Z-pins in the composite in the joint area to the metal tangs on the metal structure. The joint has modest strength but is less susceptible to shock damage than an adhesive bond or to notch effect crack propagation da ...


5
James J Childress: Interlaced Z-pin structures. The Boeing Company, John C Hammar, April 7, 1998: US05736222 (33 worldwide citation)

Improved pin-reinforced sandwich structure ties the face sheets (typically on opposite sides of a foam core) together with a plurality of Z-pins that extend into each face sheet (through the core). The pins are arranged in a an interlaced configuration off-normal to provide crack resistance around f ...


6
James J Childress: Double lap joint with welded Z-pins. The Boering Company, John C Hammar, October 26, 1999: US05972524 (31 worldwide citation)

A double shear lap join is formed between metal and composite structure by welding Z-pins in the composite in the joint area to the metal tangs on the metal structure. The joint has modest strength but is less susceptible to shock damage than an adhesive bond or to notch effect crack propagation dam ...


7
James J Childress: Composite detail having Z-pin stubble. The Boeing Company, John C Hammar, January 26, 1999: US05863635 (28 worldwide citation)

I improve the impact shock resistance of bonds between composite elements by including Z-pin reinforcement. I prepare stubbled composite structure by using peel plys over the appropriate surface of the composite during pin insertion using conventional processes. I then use the stubbled composite str ...


8
Mark S Alston, Joseph P Brown, James J Childress: Z-pin reinforced bonded composite repairs. John C Hammar, February 9, 1999: US05868886 (27 worldwide citation)

The strength of composite patches is improved over conventional bolted or bonded patches by including Z-pins in the patch/parent structure interface to provide a mechanical link with small stress concentration between the patch and the parent structure. In some cases, we achieve a stronger repair re ...


9
James J Childress: Pin-reinforced sandwich structure. The Boeing Company, Christensen O Connor Johnson & Kindness PLLC, February 22, 2000: US06027798 (26 worldwide citation)

A method of forming a pin-reinforced foam core sandwich structure (10) including placing first and second face sheets (12), (14) on opposite sides of a foam core (16), the foam core (16) having at least one low density sublayer (28), an optional high density foam sublayer (26), and a plurality of Z- ...


10
James J Childress: Z-pin reinforced bonds for connecting composite structures. The Boeing Company, John C Hammar, November 9, 1999: US05980665 (26 worldwide citation)

I improve the impact shock resistance of bonds between composite elements by including Z-pin reinforcement. I prepare stubbled composite structure by using peel plys over the appropriate surface of the composite during pin insertion using conventional processes. I then use the stubbled composite str ...



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