Abstract: A corkscrew includes a rotatable pinion gear having a fixed radius and a horizontal rotational axis rotatably coupled to an annular collar and engaging a gear rack of a vertically translating driver. A helical worm is coupled through a freely rotating connection to the vertically translating driver wherein the corkscrew freely rotates about a longitudinal rotation axis coaxially aligned with a location of a bottle neck from which a corkscrew is to be withdrawn. A crank rotates the pinion gear for translating the driver up and down relative to the collar along the rotation axis of the corkscrew. A helical pinon gear a helical pinion rack drives rotates about the longitudinal rotation axis in meshing engagement with helical rack on the vertically translating driver, the helical pinion gear having at least one blade to contact the bottle neck scoring a foil capsule thereon as the helical pinon gear rotates.

Abstract: A method and apparati for regulating introduction of ambient air begins with initiating a liquid flow through a venturi to induce a localized drop in pressure at a bowl situated at a venturi throat. Airflow is admitted at a barrel inlet, through a first barrel lumen segment to a first half-moon port at a throttle first side. The airflow is selectively obstructed by a second half-moon port whose rotational position relative to the first half-moon port defines a variable aperture. The airflow is conducted from the second half-moon port through a second barrel lumen segment to the barrel outlet and mixing with the liquid to produce an aerated liquid.

Abstract: A method and apparati to exploit a bottle mounted housing, defining a liquid passageway for a liquid flow from the bottle. A funnel coaxially situated to the liquid flow and extending from a funnel inlet converging in a downstream direction at a funnel outlet joins a bowl coaxially situated to the liquid flow and converging in the downstream direction at a bowl outlet. A horn extends from the bowl outlet and flares downstream to a horn outlet having a greater cross-sectional area than that of the bowl outlet. At least one barrel has a barrel lumen extending from a barrel inlet to a barrel outlet at an acute angle to the liquid flow to admit an airflow through the lumen and into the bowl. A resilient sealing gasket including at least one annular flange, is removable engaged with an opening in a bottle for pouring liquid from the bottle.