Abstract: A face mask for supplying oxygen to personnel such as flight crews during times when there is inadequate air available, has fitted to it a device containing a passageway leading from the interior to the exterior of the mask, and a manually operable, slidable valve stem adapted in a first position to block the exit through the passageway of gas within the mask, and in a second position to open the passageway to permit the flow of gas from the interior to the exterior of the mask. The exit opening from the passageway is located at the upper nose area where it will be encompassed within the cavity of a goggle fitted over the vicinity of the eyes of the user. By manually moving the valve stem to the position where the passageway is open, oxygen from within the face mask is forced into the goggle cavity to flush out from the goggle cavity any smoke or noxious gas which may be present within it.

Abstract: A helmet useful for crew members of an aircraft from which they may be ejected at high speeds comprises a shell over which there is a visor housing containing a visor which can be pulled down over the face of the searer. An anti-lift device in the form of a flange protrudes from the visor housing and extends from a position near a forward side edge of the visor housing and passes around and across the top crown area to a position near the opposite forward side edge of the visor housing. The flange rises from a lowest elevation near the forward side edges to a highest elevation at the top crown area. The regions adjacent the forward side edges constitute wings at a negative angle of attack against wind blase and the region in the vicinity of the top crown area constitutes a spoiler producing turbulence to spoil upward lift.

Abstract: There is disclosed a helmet useful for crew members of an aircraft from which they may be ejected at high speeds. The helmet comprises a shell which fits over the head in a conventional manner and is provided with a strap which passes beneath the chin to retain the helmet on the head. A visor housing attached to, and spaced from, the shell is positioned to cover the forward crown part of the head and has portions which extend downwardly along the sides of the face of the wearer, which merge into the planes of flat areas at the ears. By this structure the usual bulbous shape at the ears commonly found in helmets is avoided and the side-to-side dimension is reduced.There are formed at the upper part of the visor housing a number of discontinuous louvers forming ridges through forward facing walls of which there are apertures. During an ejection, air scooped into the region between the visor housing and the shell exits through these louver openings.

Abstract: A protective cover for an electric connector containing electric contacts within an open end of the connector comprises a peripheral clamping strip to be clamped over an elastomeric band around the peripheral wall adjacent to the open end of the connector. A base member attached to the clamping strip protrudes toward the open end where there is pivoted a protective lid which can cover the open end. A spring loads the lid so that it is urged toward the position where it closes the open end and a finger portion may be used to pivot the lid against the force of the spring to open the lid. The clamping strip has ends which overlap so that the strip is substantially in the form of a ring. The two ends of the strip are provided with louvered notches which can be drawn toward each other by a suitable tool to contact the diameter of the circle over the elastomeric band.

Abstract: A restraining device for use on a small child or person for holding him to a lap seat belt of a seat such as an automobile or airplane seat, comprises a vest provided with an adjustable vest belt attached around the bottom of the vest and buckling in front. A pair of adjustable straps attached at the vest belt at the front pass upward over the shoulders of the wearer and down the back, where they cross each other to the region of the vest belt at the back, where they are fastened. Loops are formed at the lower rear ends of the straps through which an ordinary lap seat belt attached at the seat, may be passed to hold the person to the seat.