Abstract: The corkscrew according to the invention, which has the basic structure of a conventional corkscrew, comprising a helix (1) which fits into a handle (3) with a grooved configuration so that, in the operating condition of the helix (1), it may remain partially engaged within the grooved part of the handle (3), said handle (3) being hinged at one of its ends on a support arm (5), is principally characterized in that the handle (3) incorporates a metal core (7) with a basically U-shaped cross section, housing internally a longitudinally displaceable capsule-cutting knife (10) capable of protruding externally from the handle (3) and with a blade extended at the rear in the form of a widened segment (11) acting as a guide, having a lateral projection (12) protruding towards the outside of the handle (3) through a longitudinal groove (13) along which it is displaceable with the aid of the user's finger. In this way the knife may be easily extracted using only one hand.

Abstract: The corkscrew according to the invention, which has the basic structure of a conventional corkscrew, comprising a helix (1) which fits into a handle (3) with a grooved configuration so that, in the operating condition of the helix (1), it may remain partially engaged within the grooved part of the handle (3), said handle (3) being hinged at one of its ends on a support arm (5), is principally characterized in that the handle (3) incorporates a metal core (7) with a basically U-shaped cross section, housing internally a longitudinally displaceable capsule-cutting knife (10) capable of protruding externally from the handle (3) and with a blade extended at the rear in the form of a widened segment (11) acting as a guide, having a lateral projection (12) protruding towards the outside of the handle (3) through a longitudinal groove (13) along which it is displaceable with the aid of the user's finger. In this way the knife may be easily extracted using only one hand.

Abstract: The corkscrew of the invention is specially designed to ensure optimum functionality, while being extremely easy to use and having great structural simplicity, with the consequent positive effects in terms of costs and lifetime of the corkscrew. To this end, the support arm (7) of said corkscrew, with a channel-like configuration, is made as a single piece and incorporates within it a pivot element (11) mounted pivotably on a transverse pin or axis (10), said pivot element (11) ending at each end in respective support means (12 and 14), the first in the form of a claw and the second in the form of a hook, the first being located at the free end of the support arm and the second in the middle thereof, and the support surface of both being oriented outwards, i.e. towards the opening in the neck of the bottle when the corkscrew is placed on the bottle.

Abstract: A corkscrew has an external tubular body having a mouth forming a support over a bottle, a spiral introducible into a cork when rotating the corkscrew, a support for supporting the spiral, and an actuating unit including a toothing provided on the tubular body, an arm having a lower end engageable with the toothing and a lever pivotably connected with the tubular body and also with an upper end of the arm and turnable toward and away form the tubular body, to provide step-by-step an engagement of the lower end of the arm with the toothing, a disengagement of the lower arm with the toothing, and a subsequent engagement of the lower end of the arm with the toothing at a greater height to impart an ascending movement to the support means and thereby to the spiral for removing the cork.

Abstract: A corkscrew has an external tubular body having a mouth forming a support over a bottle, a spiral introducible into a cork when rotating the corkscrew, a support for supporting the spiral, and an actuating unit including a toothing provided on the tubular body, an arm having a lower end engageable with the toothing and a lever pivotably connected with the tubular body and also with an upper end of the arm and turnable toward and away form the tubular body, to provide step-by-step an engagement of the lower end of the arm with the toothing, a disengagement of the lower arm with the toothing, and a subsequent engagement of the lower end of the arm with the toothing at a greater height to impart an ascending movement to the support means and thereby to the spiral for removing the cork.

Abstract: A multipurpose corckscrew has a main body, a helical screw connected with the main body and introducible into a cork to be removed, an arm provided with an end tab and connected with the main body, a guide connecting the arm with the main body so that the arm is displaceable on the guide between a rear position and a forward position, means keeping the arm in the forward position, and elastic means pushing the arm toward the rear position.

Abstract: A corkscrew has an external tubular body having a mouth forming a support over a bottle, a spiral introducible into a cork when rotating the corkscrew, support means for the spiral, and actuating means for raising the spiral and removing the cork, the support means including a tubular part housed in the external tubular body so as to be longitudinally displaceable.

Abstract: This corkscrew consists of a main body (1) fitted to a foldable blade (7) to open bottles, a helicoidal screw (2) and a guide (4) over which is fitted a detachable arm (3) having an end nail (3a) providing a point of support over the bottle neck during uncorking. The arm (3) may be placed, with the aid of a curved retainer (5) and helicoidal spring (6), in a front or rear position.

Abstract: A manually operated corkscrew for removing a stopper from a mouth of a bottle is described. The corkscrew includes a body and a support arm, with an edge, pivotally connected to the body. A ringlet, for removable insertion into the stopper, is pivotally connected to the body adjacent to where the body and support arm are pivotally connected. A mechanism, providing at least two intermediate and graduated points along the edge of the support arm for engagement with the mouth of the bottle to permit removal of the stopper without having to further insert the ringlet into the stopper is also provided.

Abstract: An improved corkscrew having a main body or lever (1), whose intermediate section has a shaft (2) on which a helicoidal thread (3) swings and in whose end there is another shaft (7) by which a second ribbed arm (8) swings, having on its two sides two grooves (12) opposite to each other, along which the two extensions of the shaft (7) run, with several locking points.

Abstract: A manually operated corkscrew is disclosed with a substantially U-shaped body having first and second ends. A rack with teeth is moveable within the body. The rack has first and second ends and is biased to move toward the second end of the body. Two symmetrical wings are provided on the second end of the rack with an extension spike mounted therebetween. A handle, pivotally attached at a pivot to the body adjacent to the first end of the body also has an axis joint disposed adjacent to the pivot. A ratchet claw, with a claw end, is pivotally disposed on the axis joint and biased so that the claw end engages the teeth on the rack. The handle acts as a first-class lever when activated about the pivot to gradually push the rack toward the first end of the body through progressive engagement between the ratchet claw and the teeth on the rack.

Abstract: A corkscrew has a body having a central part and an end part, a helix provided at the central part of the body, an end arm provided on the end part of the body, the end arm having an end provided with a first fulcrum and an internal medium part provided with a mechanism for forming an intermediate auxiliary fulcrum under the action of a manual drive of a user to facilitate a drawing action on a cork in which the helix has been introduced.

Abstract: The invention provides a pocket hand corkscrew having an operating lever with a bottom and two flanges, attached to a channel-like guideway which may pivot from a position wherein it is applied against the bottom. A slide member may slide along the guideway, is attached to a helical corkscrew member and has teeth. A dog rotatably attached to the lever may engage the teeth when the lever is operated, providing smooth, comfortable movement of the slide member and consequently of the helical screw member previously driven into a stopper.