Abstract

Contemplated tool and tool cartridge assemblies are provided that include at least one tool component and a movable cover. The movable cover has at least one guard portion that moves to cover or expose at least one tool component to protect a user from injury. Contemplated movable covers could be biased to cover tool components, and can be moved by a user or work piece as needed.

IPC Classes  ?

• B26B 3/00 - Hand knives with fixed blades
• B26B 29/02 - Guards or sheaths for knives

Abstract

Apparatuses, systems, and methods in which a utility knife includes a hook-type cutter, and at least one of a blade tip cap and a blade cover that is movable relative to a blade or blade cartridge. Contemplated blade tip caps can be fixedly, removably or movably attached to the blade or other portion of a utility knife cartridge. Contemplated blade covers can move from a blade covering configuration to a blade exposing configuration.

IPC Classes  ?

• B25G 3/18 - Locking or securing devices comprising catches or pawls
• B26B 5/00 - Hand knives with one or more detachable blades
• B26B 29/02 - Guards or sheaths for knives

Abstract

A bag cutter for opening a sealed package using at least one of a blade and a piercer. Preferably, at least one blade is disposed partially within a cutout of an arm in a manner that exposes an edge of the blade. A piercer can comprise an extension of a cutout edge or be located on any other suitable portion of an arm. Another blade can be provided that is substantially perpendicular to the blade within a cutout, and juxtaposable against a cutting surface.

IPC Classes  ?

• B26B 27/00 - Hand cutting tools not provided for in groups , e.g. finger rings for cutting string, devices for cutting by means of wires
• B26F 1/24 - Perforating by needles or pins

Abstract

A multi-blade bag cutting apparatus for opening a sealed package using one of at least two methods has a first arm partially enclosing a first blade and a first or second arm having a cutout exposing a second blade. The two arms can be injection molded as a single piece of plastic or comprise two separate pieces coupled to a pivot. Preferably, the first blade is partially juxtaposable against a cutting surface, which can be, among other things, a raised portion and/or an anvil.

IPC Classes  ?

• B26B 27/00 - Hand cutting tools not provided for in groups , e.g. finger rings for cutting string, devices for cutting by means of wires

Abstract

A cutting apparatus comprises a first arm, an opposable second arm, a first blade and a second blade orthogonal to the first blade. The first arm comprises or is coupled to a blade enclosing material that partially encloses the first blade at the first end and the second end in a manner that leaves the central portion of the blade unenclosed. The opposable second arm comprises or is coupled to a raised portion made of a first material. The raised portion partially encloses an anvil made of a second material different from the first material. A first segment of the central portion is sized and dimensioned to physically contact the raised portion and/or the anvil. The second blade is partially embedded in and extends entirely within a thickness of the first arm in a manner that exposes a portion of the second blade at a cutout.

IPC Classes  ?

• B26B 27/00 - Hand cutting tools not provided for in groups , e.g. finger rings for cutting string, devices for cutting by means of wires
• B26F 1/24 - Perforating by needles or pins

Abstract

A cutting apparatus having an open conformation and a closed conformation, comprises a first arm having a first inner surface and an opposable second arm having a second inner surface opposite the first inner surface. A first blade is partially embedded in and extending from a first recess in the first arm. A cutting surface extends from the second arm. At least a portion of the first blade is sized and dimensioned to physically contact at least a portion of the cutting surface. A piercer has a blunted tip extending outward from the second inner surface, and toward the first inner surface. The cutting surface comprises (i) a raised portion at least partially enclosing an anvil and (ii) an exposed portion of the anvil extending from the raised portion, wherein the exposed portion of the anvil is curved.

IPC Classes  ?

• B26B 3/00 - Hand knives with fixed blades

Abstract

In a knife, the combination, comprising a cartridge, a blade carried by the cartridge, a holder supporting the cartridge so that the blade projects from the holder, a shield for the blade, carried to be displaced relative to the holder and blade to expose the blade, for cutting.

IPC Classes  ?

• B26B 3/00 - Hand knives with fixed blades