Abstract: Boeing is actively engaged in the production of lightweight composite airframes for both military and commercial applications. The double bag vacuum infusion process of the present invention provides a low cost, method for producing complex composite assemblies without an autoclave. It also enables the production of highly innovative structures. The quality of the composites produced using such an infusion process are comparable to composites made using prepregs, hand layup or fiber placement, and autoclave curing.

Abstract: Boeing is actively engaged in the production of lightweight composite airframes for both military and commercial applications. The double bag vacuum infusion process of the present invention provides a low cost, method for producing complex composite assemblies without an autoclave. It also enables the production of highly innovative structures. The quality of the composites produced using such an infusion process are comparable to composites made using prepregs, hand layup or fiber placement and autoclave curing.

Abstract: Boeing is actively engaged in the production of lightweight composite airframes for both military and commercial applications. The double bag vacuum infusion process of the present. invention provides a low cost, method for producing complex composite assemblies without an autoclave. It also enables the production of highly innovative structures. The quality of the composites produced using such an infusion process are comparable to composites made using prepregs, hand layup or fiber placement, and autoclave curing.

Abstract: Boeing is actively engaged in the production of lightweight composite airframes for both military and commercial applications. The double bag vacuum infusion process of the present invention provides a low cost, method for producing complex composite assemblies without an autoclave. It also enables the production of highly innovative structures. The quality of the composites produced using such an infusion process are comparable to composites made using prepregs, hand layup or fiber placement and autoclave curing.

Abstract: The double bag vacuum infusion process of the present invention provides a low cost method for producing complex composite assemblies without an autoclave. It also enables the production of highly innovative structures. The quality of the composites produced using such an infusion process are comparable to composites made using prepregs, hand layup or fiber placement, and autoclave curing. Double bagging provides vacuum integrity, controls bag relaxation while flow media controls the flow front to allow high quality aerospace-grade products.

Abstract: Boeing is actively engaged in the production of lightweight composite airframes for both military and commercial applications. The double bag vacuum infusion process of the present invention provides a low cost, method for producing complex composite assemblies without an autoclave. It also enables the production of highly innovative structures. The quality of the composites produced using such an infusion process are comparable to composites made using prepregs, hand layup or fiber placement, and autoclave curing.

Abstract: A scalpel blade extractor and disposal unit formed of semi-flexible plastic material. The unit has a substantially closed chamber within which a blade mounted on a handle is received. The chamber has a top and a bottom and an abutment shoulder is attached to the top and extends below the plane of the bottom for the purpose of retaining the blade in the chamber. A mechanism is provided for increasing the distance between the top and the bottom so that the blade on the handle passes under the abutment shoulder. The bottom has a groove and shoulders around the groove for prying the heel of the blade up such that it is stopped by the abutment shoulder when the handle is withdrawn leaving the blade behind in the chamber.

Abstract: A lightweight protective headgear having ventilating qualities and having an outer shell, an elastomeric liner with a plurality of elastomeric members arranged with airspace therebetween and a porous material to keep the wearer's hair from filling the airspace between said elastomeric members. The elastomeric members have a base and a surface tapering towards a truncated apex and are arranged in a loosely fitted side by side pattern with their small ends directed axially inward for engaging the head of a wearer and with their large ends engaging the inside of the outer shell. The elastomeric members vary in height to conform the liner to the wearer's head and are arranged along the inside of the outer shell in front to back rows having greater spacing between the rows than between the elastomeric members in the rows.