Abstract: The invention relates to a knife comprising a handle of longitudinal axis and a blade rotatably mounted at a first longitudinal end of the handle, between a position deployed outside the handle and in alignment thereof, and a position folded in a space provided in the handle, the knife further comprising a cap lifter, the cap lifter being placed at a second longitudinal end of the handle, the cap lifter comprising a wire structure mounted to freely rotate about an axis orthogonal to the longitudinal axis of the handle, the wire structure defining with the handle a closed contour delimiting a cap lifting aperture intended to receive a capsule, and in that the cap lifter comprises a bearing element allowing the bearing of the cap lifter on an upper part of the capsule, said bearing element being formed by a bearing zone of the handle, and a hooking element allowing the hooking of the cap lifter under the capsule, said hooking element being formed by a rectilinear transverse portion of the wire structure.

Abstract: An accessory suitable for a removable attachment in a grip handle, in which the handle includes an inner housing formed in an end portion of the grip handle, an opening whose second portion opens onto a lateral side of the grip handle, a rotating ferrule rotating between a blocking position, in which the rotating ferrule at least partly covers the second portion of the opening, and a release position, in which the rotating ferrule releases the second portion of the opening. The accessory includes an assembly portion usable as a removable attachment of the accessory to the grip handle. The assembly portion is inserted into the inner housing, and includes a retaining part that cooperates with the rotating ferrule when the rotating ferrule is in the blocking position so as to retain the assembly portion in the inner housing.

Abstract: A knife with a handle and a blade, associated with means adapted to emit sound using an air flow, the said means being incorporated inside the body of the said handle, and being of the whistle type, and comprising a recess connected to a mouthpiece located upstream, through which the said flow of air is introduced, and connected to an exit window located downstream. An air compression chamber located downstream from the mouthpiece, opens through a hole into an expansion chamber (or pressure relief chamber) which is itself connected to the said exit window. The compression chamber is such that its section along a plane orthogonal to the air flow reduces, preferably in a linear manner, in the direction of the expansion chamber. The exit window has a bevelled edge on the side opposite the compression chamber. The compression chamber opens onto two parallel expansion chambers having different lengths.

Abstract: A knife with a handle and a blade, associated with means adapted to emit sound using an air flow, the said means being incorporated inside the body of the said handle, and being of the whistle type, and comprising a recess connected to a mouthpiece located upstream, through which the said flow of air is introduced, and connected to an exit window located downstream. An air compression chamber located downstream from the mouthpiece, opens through a hole into an expansion chamber (or pressure relief chamber) which is itself connected to the said exit window. The compression chamber is such that its section along a plane orthogonal to the air flow reduces, preferably in a linear manner, in the direction of the expansion chamber. The exit window has a bevelled edge on the side opposite the compression chamber. The compression chamber opens onto two parallel expansion chambers having different lengths.

Abstract: A knife with a handle and a blade, associated with means adapted to emit sound using an air flow, the said means being incorporated inside the body of the said handle, and being of the whistle type, and comprising a recess connected to a mouthpiece located upstream, through which the said flow of air is introduced, and connected to an exit window located downstream. An air compression chamber located downstream from the mouthpiece, opens through a hole into an expansion chamber (or pressure relief chamber) which is itself connected to the said exit window. The compression chamber is such that its section along a plane orthogonal to the air flow reduces, preferably in a linear manner, in the direction of the expansion chamber. The exit window has a bevelled edge on the side opposite the compression chamber. The compression chamber opens onto two parallel expansion chambers having different lengths.

Abstract: This invention relates to a folding knife including a blade having a heel pivotally mounted onto an intermediate member made of plastic or composite material, provided with a blade-spring co-operating with the blade heel, and inserted, then stuck within a recess provided in one end of a wooden handle.