Abstract: An optical node (100) is disclosed. The optical node (100) comprises first and second line ports (104, 106) for Wavelength Division Multiplexing (WDM) signals and first and second pluralities of local add/drop ports (108, 110) for optical signals. The optical node further comprises a wavelength selective switch (112), coupled between the first and second line ports (104, 106) and configured to drop optical signals from a WDM signal traversing the optical node between the first and second line ports (104, 106), and a node optical combiner (114) coupled between the first and second line ports (104, 106) and configured to add optical signals to a WDM signal traversing the optical node between the first and second line ports (104, 106).

Abstract: The present invention relates to a pourer comprising a tubular body which is able to be attached to a container and a pouring spout accommodated within the tubular body and reversibly movable relative to the tubular body between a retracted position and an extracted position. The pouring spout has a pouring lip conformed to define a pouring orientation and the tubular body and the pouring spout are coupled together by coupling means that are able to guide the movement of the pouring spout relative to the tubular body between the retracted and extracted positions and prevent rotation of the pouring spout relative to the tubular body to hold the relative angular position of the pouring lip with respect to the tubular body.

Abstract: The present invention relates to a comprising a tubular body which is able to be attached to a container and a pouring spout accommodated within the tubular body and reversibly movable relative to the tubular body between a retracted position and an extracted position. The pouring spout has a pouring lip conformed to define a pouring orientation and the tubular body and the pouring spout are coupled together by coupling means that are able to guide the movement of the pouring spout relative to the tubular body between the retracted and extracted positions and prevent rotation of the pouring spout relative to the tubular body to hold the relative angular position of the pouring lip with respect to the tubular body.

Abstract: A swim or diving fin includes a footpocket for housing a foot, a blade extending from the front end of the footpocket member, a frame member extending for at least a portion of the blade. The frame member or members includes a closed loop perimetric rim member having two opposite longitudinal branches delimiting an inner hollow region and also having one or more transversal bridges connecting the longitudinal branches. The blade is connected to the frame member at one or more of the transversal bridges and/or at least at one or more ends of the rim member.

Abstract: A swim fin comprises a footpocket (1) and a propelling blade (2), which has a central longitudinal member (3) for supporting and stiffening the blade (2). The blade (2) has at least one pair, preferably a plurality, of ribs (5) oriented toward the free end (4) of the blade (2) and extending from the central longitudinal member (3) to the peripheral edge (4, 6) of the blade (2). The gaps (6) between the ribs (5) are at least partly closed by at least one waterproof element, so that the fin has an in-fluid behavior and an exterior aspect which is comparable to a plume or a bird's feather.

Abstract: The invention relates to a diving and swimming mask, comprising a mask body (1) which has at least one front opening, and means (3, 4) for firmly securing and/or holding the peripheral edge of at least one transparent member (2) in a water tight manner all along the peripheral edge of said front opening. According to the invention, the mask has at least one, two, three or more members (6) for finishing the peripheral edge of the assembly consisting of the transparent member (2), the mask body (1) and the securing members (3, 4), which members (6) may be added and/or secured at least or only by interlock and/or shape fitting, and after the addition of the means for water tightly securing the transparent member (2) to the mask body (1).

Abstract: The invention relates to a swim fin, comprising a seat for the foot, the so-called footpocket (1) and a propelling blade (2), which has a central longitudinal member (3) for supporting and stiffening the blade (2). According to the invention, the blade (2) has at least one pair, preferably a plurality of ribs (5) oriented toward the free end (4) of the blade (2) and extending from the central longitudinal member (3) to the peripheral edge (4, 6) of the blade (2). The gaps (6) between the ribs (5) are at least partly closed by at least one waterproof membrane-like element or the like, so that the fin has an in-fluid behavior and an exterior aspect which is comparable to a plume or a bird's feather.

Abstract: An adjustable quick-release buckle, particularly for masks or similar, of the type provided in combination with a strap (1). The strap has a set of equally spaced teeth (101), projections, transverse ribs, or similar, arranged along the strap (1), and at least on the end portions of said strap (1), covering a predetermined length, and the buckle (2) has removable means (4, 5), preventing the strap (1) from sliding in the loosening direction, and allowing it to slide in the opposite tightening direction, said means (4, 5) being controllable, when the strap (1) is in the disengagement position, also in said loosening direction.

Abstract: Swimming flipper formed by a blade and a shoe, wherein the blade comprises a body of an ethylene vinyl acetate-based polymer made by injection moulding and at least partially covered by at least one flexible and elastic film of polyethylene additioned with ethylene vinyl acetate, having a decorative and/or protective and/or mechanical function. The film is applied onto and permanently connected by chemical-thermal adhesion to the body of the blade, directly during the moulding operation thereof, being previously inserted within the mould as an insert.