In one aspect, a trimming knife is provided that includes a blade and a handle. The blade has a straight leading edge, a straight trailing edge, a straight lower cutting edge, and squared leading and trailing corners between the straight leading and trailing edges and the straight lower cutting edge. The handle includes a gripping portion, a spine to receive the blade, and a blade guard configured to protect the squared trailing corner of the blade with the blade received in the spine.

A box top opener employs a trapezoidal ceramic blade having a cutting edge which is positionable at multiple positions. A knob is rotatable to extend and retract the blade. A guide projects from a front of the cutter body to provide a guide surface engageable against the top of a box. In one embodiment, a blade carrier has a follower which traverses a spiral track for displacing the blade.

A utility knife has a housing in which a particle flow cross section is substantially constant or increases in a flow direction of particles from an inlet of the housing into an interior of the housing at an end of the housing to an outlet of the housing. A blade assembly has a blade with a cutting edge and is movable relative to the housing between a stowed position and an operating position for a cutting operation. A first actuating part and a second actuating part mounted movable relative to the first actuating part move of the blade assembly between the stowed and operating positions. First and second slotted links form a four-point linkage with the first and second actuating parts.

A utility knife has a housing in which a particle flow cross section is substantially constant or increases in a flow direction of particles from an inlet of the housing into an interior of the housing at an end of the housing to an outlet of the housing. A blade assembly has a blade with a cutting edge and is movable relative to the housing between a stowed position and an operating position for a cutting operation. A first actuating part and a second actuating part mounted movable relative to the first actuating part move of the blade assembly between the stowed and operating positions. First and second slotted links form a four-point linkage with the first and second actuating parts.

Safety knife with a blade that can be replaced and where access to the cutting edge of the blade is limited so as to reduce the risk of injury to a user, comprising a blade piece with a blade arranged between a guard and a fixation and an oblong knife body comprising a holder and a partly flat insert for rigidly holding the blade piece near a proximal end, wherein said insert having rails on both sides of the flat part at least near the proximal end, said holder including a depression near the proximal end for receiving the fixation and a channel extending from the proximal end towards the distal end at least beyond the depression for receiving at least the flat part of the insert, said channel having grooves on each side starting at the proximal end for receiving the rails.

Safety knife with a blade that can be replaced and where access to the cutting edge of the blade is limited so as to reduce the risk of injury to a user, comprising a blade piece with a blade arranged between a guard and a fixation and an oblong knife body comprising a holder and a partly flat insert for rigidly holding the blade piece near a proximal end, wherein said insert having rails on both sides of the flat part at least near the proximal end, said holder including a depression near the proximal end for receiving the fixation and a channel extending from the proximal end towards the distal end at least beyond the depression for receiving at least the flat part of the insert, said channel having grooves on each side starting at the proximal end for receiving the rails.

Implementations of a hand-held multi-purpose kitchen tool are provided. In some implementations, the hand-held multi-purpose kitchen tool comprises a handle for holding and using the hand-held multi-purpose kitchen tool and a body comprising a plurality of surfaces and features configured to prepare food and to protect a user's hand while preparing food.

In some implementations, a method for using the hand-held multi-purpose kitchen tool comprises holding the hand-held multi-purpose kitchen tool with the handle and using one or more of the surfaces and features of the hand-held multi-purpose kitchen tool to prepare food and/or to protect the user's hand while preparing the food.

Implementations of a hand-held multi-purpose kitchen tool are provided. In some implementations, the hand-held multi-purpose kitchen tool comprises a handle for holding and using the hand-held multi-purpose kitchen tool and a body comprising a plurality of surfaces and features configured to prepare food and to protect a user's hand while preparing food.

In some implementations, a method for using the hand-held multi-purpose kitchen tool comprises holding the hand-held multi-purpose kitchen tool with the handle and using one or more of the surfaces and features of the hand-held multi-purpose kitchen tool to prepare food and/or to protect the user's hand while preparing the food.

An apparatus is provided that includes a knife and blade cover. The knife includes a handle and a blade. The handle is attached to the blade. The blade includes a cutting edge, a cheek, and an upper spine. The cheek extends between the cutting edge and the upper spine. The apparatus further includes a blade cover. The blade cover covers opposite sides of the cutting edge of the blade. The blade cover covers at least a portion of the upper spine in a stowed position. The apparatus further includes a biasing device. The biasing device is in operative connection with the knife and the blade cover. The biasing device is operative to bias the blade cover down against the upper spine in the stowed position. The blade is in operative connection with the knife. The blade cover is operative to move relative to the blade in a direction away from the cutting edge when the blade cuts an object to enable the blade to cut the object.

An apparatus is provided that includes a knife and blade cover. The knife includes a handle and a blade. The handle is attached to the blade. The blade includes a cutting edge, a cheek, and an upper spine. The cheek extends between the cutting edge and the upper spine. The apparatus further includes a blade cover. The blade cover covers opposite sides of the cutting edge of the blade. The blade cover covers at least a portion of the upper spine in a stowed position. The apparatus further includes a biasing device. The biasing device is in operative connection with the knife and the blade cover. The biasing device is operative to bias the blade cover down against the upper spine in the stowed position. The blade is in operative connection with the knife. The blade cover is operative to move relative to the blade in a direction away from the cutting edge when the blade cuts an object to enable the blade to cut the object.