A knife with line cutter generally includes a knife blank having a main blade on one end and a line cutter on the opposing end of a tang. The line cutter has a sharpened edge on the inner curve of a hook at the end of the tang, and may extend from the handle or be recessed within the end of the handle. The tang may comprise a tang extension that allows the line cutter to transition from a retracted position to an extended position outside of the handle. The extension assembly may include a spring and/or a locking mechanism. Alternatively, the line cutter is a recessed diagonal blade. A method of forming a knife with line cutter generally includes forming a knife blank comprising a blade, tang, and line cutter; forming a handle; and securing the knife blank to the handle.

A knife with line cutter generally includes a knife blank having a main blade on one end and a line cutter on the opposing end of a tang. The line cutter has a sharpened edge on the inner curve of a hook at the end of the tang, and may extend from the handle or be recessed within the end of the handle. The tang may comprise a tang extension that allows the line cutter to transition from a retracted position to an extended position outside of the handle. The extension assembly may include a spring and/or a locking mechanism. Alternatively, the line cutter is a recessed diagonal blade. A method of forming a knife with line cutter generally includes forming a knife blank comprising a blade, tang, and line cutter; forming a handle; and securing the knife blank to the handle.

A knife (1) with automatic blade retraction including a housing (2), a moveable actuating device (4), a rotatable blade unit (30), and a retraction element (34) which always applies a retraction force to the blade unit (30) in the direction of the retracted position. The rotatable blade unit (30) can be brought into engagement with the actuating device (4) and is moveable by means of the actuating device (4) from a position retracted in the housing (2) into a position extended from the housing (2). The blade unit (30) is also rotatable by the action of a cutting force in an extended position from an engagement position in which the blade unit (30) is in engagement with the actuating device (4) into a release position in which the blade unit (30) is not in engagement with the actuating device (4).

Various disclosed embodiments include a knife assembly that includes a knife member having a blade portion and a tang portion. The knife assembly also including a handle member configured to be slidable from a knife position. At least a portion of the blade portion extends out of the handle member, to a storage position and the blade portion is substantially concealed by the handle member.

Various disclosed embodiments include a knife assembly that includes a knife member having a blade portion and a tang portion. The knife assembly also including a handle member configured to be slidable from a knife position. At least a portion of the blade portion extends out of the handle member, to a storage position and the blade portion is substantially concealed by the handle member.

A knife and sheath assembly includes a sheath defining therein a knife accommodation portion; an engagement and release unit including a pivot hole pivotally coupled to said sheath, and operating portion and an engagement portion; a knife including a cutter blade insertable into the knife accommodation portion, a grip, a plurality of retaining grooves arranged in series on a back side thereof between the cutter blade and the grip for engagement with the engagement portion of the engagement and release unit in a selective manner. In an alternate form, the knife and sheath assembly includes a sheath defining a knife accommodation portion, a guide-in portion and a guide-out portion, and a knife including a cutter blade insertable into the knife accommodation portion, a grip, a guide-in edge for engagement with the guide-in portion of the sheath and a guide-out edge for engagement with the guide-out portion of the sheath.

A knife and sheath assembly includes a sheath defining therein a knife accommodation portion; an engagement and release unit including a pivot hole pivotally coupled to said sheath, and operating portion and an engagement portion; a knife including a cutter blade insertable into the knife accommodation portion, a grip, a plurality of retaining grooves arranged in series on a back side thereof between the cutter blade and the grip for engagement with the engagement portion of the engagement and release unit in a selective manner. In an alternate form, the knife and sheath assembly includes a sheath defining a knife accommodation portion, a guide-in portion and a guide-out portion, and a knife including a cutter blade insertable into the knife accommodation portion, a grip, a guide-in edge for engagement with the guide-in portion of the sheath and a guide-out edge for engagement with the guide-out portion of the sheath.

A single operation cutting device having a safety guard which locks after each cutting action. The single operation cutting device having a housing, cutting blade holder, safety guard, safety guard release and intermediary member. The safety guard is in movable communication with said intermediary member. The intermediary member having a body translatable along a rod such that it may move responsive to said safety guard during locking and unlocking actions.

A single operation cutting device having a safety guard which locks after each cutting action. The single operation cutting device having a housing, cutting blade holder, safety guard, safety guard release and intermediary member. The safety guard is in movable communication with said intermediary member. The intermediary member having a body translatable along a rod such that it may move responsive to said safety guard during locking and unlocking actions.

A multi-purpose tool or apparatus includes multiple mechanical tools. In one implementation, the multi-purpose tool includes an elongated handle, a folding axe, and a folding shovel or spade, as well as a hammer or hammer-head. The folding axe is foldable between an open position and a closed position. The folding shovel is foldable among three positions, which are a closed shovel position, a 90-degree open shovel position, and a 180-degree extended shovel position. The elongated handle is hollow and includes an elongated cavity. A folding saw, as well as a knife and a sheath to protect the knife, are stored within the elongated cavity and can be removed therefrom.