Abstract: A fixed-blade knife includes a unitary blade having an implement, a tang, and a pivot region between the implement and the tang. The unitary blade is disposed between a pair of parallel and spaced-apart side pieces that pivot to cover or expose the implement. In the pivoted position wherein the implement is exposed, the side pieces form part of the handle that is used to grasp the knife. A locking structure locks the side pieces in a selectable position, and a limit structure prevents overrotation of the side pieces.

Abstract: A knife has an implement lying in an implement plane and an attachment structure lying in the implement plane. The attachment structure is integral with the knife body with a fixed portion extending laterally from the top of the knife body. A gate is pivotably attached to a first part of the fixed portion of the attachment structure and pivotable in the implement plane between a closed position and an open position. When the gate is opened, the attachment may be clipped to another article, and the knife is releasably attached to the other article when the gate is closed.

Abstract: A folding combination tool includes a jaw mechanism with a first jaw piece having a first lug attachment, a second jaw piece having a second lug attachment, and a jaw pivot that joins the first jaw piece and the second jaw piece so that the first jaw piece and the second jaw piece may pivot with respect to each other in a pivot plane. A first handle is pivotably attached to the first lug attachment by a first handle pivot lying perpendicular to the pivot plane, so that the first handle is pivotable about the jaw mechanism in the pivot plane. A second handle is pivotably attached to the second lug attachment by a second handle pivot lying perpendicular to the pivot plane, so that the second handle is pivotable about the jaw mechanism in the pivot plane. A first lug attachment spacing of the first lug attachment from the jaw pivot is greater than a second lug attachment spacing of the second lug attachment from the jaw pivot, so that the handles asymmetrically fold around the jaw mechanism.

Abstract: A knife-and-sheath combination includes a knife with a blade having two opposing broad faces and an opening through the blade extending between the broad faces, and a handle extending from the blade. The combination also includes a sheath including a sheath body having a receptacle sized to receive the blade therein, and a positive lock operable to lock the knife to the sheath. The positive lock includes a locking element engagable to the opening in the blade of the knife, and a lock release accessible to a user of the knife-and-sheath combination, the lock release being operable to disengage the locking element from the opening in the blade of the knife.

Abstract: A folding combination tool includes a jaw mechanism with a first jaw piece having a first lug attachment, a second jaw piece having a second lug attachment, and a jaw pivot that joins the first jaw piece and the second jaw piece so that the first jaw piece and the second jaw piece may pivot with respect to each other in a pivot plane. A first handle is pivotably attached to the first lug attachment by a first handle pivot lying perpendicular to the pivot plane, so that the first handle is pivotable about the jaw mechanism in the pivot plane. A second handle is pivotably attached to the second lug attachment by a second handle pivot lying perpendicular to the pivot plane, so that the second handle is pivotable about the jaw mechanism in the pivot plane. A first lug attachment spacing of the first lug attachment from the jaw pivot is greater than a second lug attachment spacing of the second lug attachment from the jaw pivot, so that the handles asymmetrically fold around the jaw mechanism.

Abstract: A two-piece handle is provided having a male handle half and a female handle half, each of which may be formed separately by molding, machining, or other processes. The male handle half includes a projection near the rear of the handle, and has a first hole in the projection for receiving a leaf spring rod. The female handle half has an integral spring holder which includes a recess for receiving the projection of the male handle half. The spring holder has a second hole for receiving a leaf spring rod through it which intersects with the recess. When the projection of the male half is fitted into the recess of the female half, the first hole and the second hole line up sufficiently to enable the insertion of the leaf spring rod. When the leaf spring rod has been inserted, it aids in retaining the male handle half in an assembled state with the female handle half, while also serving a spring for the blade locking mechanism.