Abstract: A self closing cap for dispensing fluids that is composed of a cap (10) with a rotating-lid (40) on top. The cap (10) having a cylindrical shape with holes (16) and channels (12) (14) on top to direct the fluids and an opening on the bottom to be mounted on a container (FIG. 1). Also the cap has a rotating lid (40) on top that works as a diaphragm (44), opening and closing according with the pressure of the fluid behind it and not allowing any substances to enter inside the cap (10). The rotating-lid (40) also has a plurality of pads (48) able to block and open the holes (16) on the cap (10) to permit the fluid to exit as the user desires (FIG. 8A).

Abstract: A valve assembly includes a valve housing defining a metering chamber and an elongated stem. The stem is axially movable with respect to the valve housing for dispensing liquid and is rotatable for adjusting the length of the stroke of a piston to thereby select the volume of liquid dispensed with each actuation of the stem. A sliding float member is fitted around the stem within the chamber and is axially slidable with respect to the stem but is locked for rotation with the stem. The lower surface of the sliding float is locked for axial movement with the piston but is independently rotatable with respect to the piston. A pair of spaced poles extends parallel to the axis of the float and engages vaginations in a surface of the housing to thereby limit the length of the stroke of the piston. The poles of the float and the complementary pairs of vaginations in the housing are angularly spaced a distance of less than 180 degrees.

Abstract: A valve assembly includes a valve housing defining a metering chamber and an elongated stem. The stem is axially movable with respect to the valve housing for dispensing liquid and is rotatable for adjusting the length of the stroke of a piston to thereby select the volume of liquid dispensed with each actuation of the stem. A sliding float member is fitted around the stem within the chamber and is axially slidable with respect to the stem but is locked for rotation with the stem. The lower surface of the sliding float is locked for axial movement with the piston but is independently rotatable with respect to the piston. A pair of spaced poles extends parallel to the axis of the float and engages vaginations in a surface of the housing to thereby limit the length of the stroke of the piston. The poles of the float and the complementary pairs of vaginations in the housing are angularly spaced a distance of less than 180 degrees.