Abstract: A one-way valve with an annular nozzle. The valve body is a truncated cone with an interior fluid manifold. The truncated cone section includes a lower retaining groove and a fluid groove. A fluid conduit connects the interior fluid manifold to the fluid groove. An elastic cylinder having an internal diameter which is smaller than the truncated cone is slipped over the truncated cone. The lower portion of the elastic cylinder slips into the retaining groove. The upper portion rests over the fluid groove. When fluid pressure within the interior fluid manifold exceeds the pressure outside the valve, fluid flows through the conduit and into the fluid groove. This pressure urges the upper portion of the elastic cylinder away from the truncated cone Fluid then flows out through an annular nozzle formed between the upper portion of the elastic cylinder and the upper portion of the truncated cone.

Abstract: An easily adjustable scope mounting head and stand. The stand includes a stabilized base with a vertical rod extending upward. The scope mounting head is attached to the vertical rod. A ball and socket joint is located on one end of the mounting head and an adjusting knob is located on the opposite end. The ball is equipped with accessible mounting mens for attaching a spotting scope or similar article. When the user slackens the adjusting knob, the ball and socket joint is free to move in roll, pitch, and yaw. In addition, the entire mounting head can rotate about the vertical rod and slide up and down the vertical rod. When the user tightens the adjusting knob, all degrees of freedom are locked. Thus, the single adjusting knob provides all needed adjustment for the height and orientation of the spotting scope.