Abstract: The fluid dispensing device (10) includes a container (20) with an interior fluid storage region (22) therein. A flexible metering housing (26) is disposed in fluid communication with the fluid storage region (22) a first one-way valve (30) disposed between the container (20) and the flexible metering housing (26). One way flow from the interior fluid storage region (22) of the container (20) fills the predetermined volume of the metering chamber (32) with fluid by vacuum action when a button (36) is depressed and then released. A second valve (40) is in fluid communication with the metering housing (26) and permits one-way fluid flow from the metering chamber (32) to the exterior outer region of the container (20) when the metering housing (26) is depressed again. Each time the metering housing (26) is depressed a substantially equal volume of fluid (24) is dispensed from the container (20). An additional foam layer (12) on the outside of container (20) facilitates dispersion and delivery of the fluid (24).

Abstract: A pump assembly including a resilient dome attached to a base plate, which together define a chamber. A flapper, supported on a raised center boss on the base plate, seats against a raised annular valve seat to selectively expose fluid inlet apertures in the base plate. The dome has a one-way fluid outlet valve. Dome compression seals the flapper against the valve seat and expels fluid through the fluid outlet valve. Release of the dome allows the outlet valve to close, and the dome regain its original shape, thereby creating a vacuum force that unseats the flapper and draws fluid into the chamber via the fluid inlet apertures. The pump assembly can be made for a variety of fluid densities and viscosities by varying the material and thickness of the flapper, the heights of the valve seat and the center boss, and the size and number of the fluid inlet apertures.

Abstract: A method for welding material including: applying a release material to a first film, the release material applied to locations where a weld is not desired; positioning a second film opposite the first film, the release material being positioned between the first film and the second film; placing the first film and the second film between planar press plates having planar surfaces and closing the press plates on the first film and the second film; applying energy to at least one of the press plates to weld the first film to the second film where the release material is absent.

Abstract: A release valve including a top sheet; a bottom sheet sealed at a periphery to the top sheet at a perimeter seal; the bottom sheet including a release hole; the top sheet including an outlet. The top sheet and the bottom sheet provide one-way fluid flow from the release hole through the outlet.

Abstract: An inflatable air cell pressure transducer. The air cell has a concavity formed therein. The concavity has two edges, wherein increased pressure within the air cell causes contraction of the concavity moving the two edges closer.

Abstract: A manually operated pump having a pump assembly and a check valve. The pump assembly includes a dome with a fluid inlet. A support plate is sealed to the dome to define a fluid chamber. The support plate includes a fluid outlet. A foam material is positioned in the fluid chamber, the foam material expanding the dome to a rest state upon release of external pressure on the dome. The check valve has a valve inlet in fluid communication with the fluid outlet of the support plate. The check valve is positioned outside of the fluid chamber. The check valve has at least one exhaust channel to provide one way fluid flow from the fluid chamber through the exhaust channel.

Abstract: The fluid dispensing device (10) includes a container (20) with an interior fluid storage region (22) therein. A flexible metering housing (26) is disposed in fluid communication with the fluid storage region (22) a first one-way valve (30) disposed between the container (20) and the flexible metering housing (26). One way flow from the interior fluid storage region (22) of the container (20) fills the predetermined volume of the metering chamber (32) with fluid by vacuum action when a button (36) is depressed and then released. A second valve (40) is in fluid communication with the metering housing (26) and permits one-way fluid flow from the metering chamber (32) to the exterior outer region of the container (20) when the metering housing (26) is depressed again. Each time the metering housing (26) is depressed a substantially equal volume of fluid (24) is dispensed from the container (20). An additional foam layer (12) on the outside of container (20) facilitates dispersion and delivery of the fluid (24).

Abstract: An embodiment of the invention is an inflatable support member having at least one tension point to establish a bend in the inflatable support member. The inflatable support member includes a first sheet and a second sheet sealed around their respective edges. A tension point is formed by enlarging the seam area where a bend in the inflatable support member is desired. Alternate embodiments of the invention include structures including the inflatable support member. An alternate inflatable support member includes a first sheet and second sheet, the second sheet having an elasticity less than that of the first sheet by using different materials, additional materials or stretching the second sheet.