Abstract: An expandable metal product for use in extinguishing fires and in the prevention of or protection against explosions. The product is a continuous sheet of material having discontinuous slits in spaced apart lines parallel to each other but transverse to the longitudinal dimension of the sheet. The invention is also directed to the expanded form of the product, either in sheets which may be used for preventing fires or explosion or in the form of shaped ellipsoids for use in a passive inerting system for fuel tanks, as flame arresters, as anti-explosion barriers, and as shields against mechanical impact.

Abstract: A yoke support for a reciprocating member in portable paint spraying equipment having a slot in the housing perpendicular to an axis of reciprocation, and an extension on the reciprocating member and a removable support secured to the housing and aligned with the extension of the reciprocating member and carrying a bearing sized to receive the extension in sliding relationship such that the bearing supports the extension of the reciprocating member in alignment with the housing and the removable support allows installation and removal of the reciprocating member by providing clearance for the extension via the slot in the housing when the removable support is removed.

Abstract: An actuator for a spray valve is provided which includes an actuator head and spray producing body positioned within the head. The actuator head includes a mechanism for connecting the head to a spray valve and transfer channel for receiving a pressurized fluid from the spray valve. The transfer channel is formed with a terminal area surrounding an outlet orifice of the channel. The spray producing body is positioned against the terminal area and has a front wall distant therefrom. The spray producing body features a swirl chamber situated adjacent the outlet orifice, a first channel downstream from the swirl chamber, a second channel of narrower diameter and downstream from the first channel, an expansion orifice situated further downstream and at least four unconnected dead-ended recesses formed into the front wall and surrounding the expansion orifice.