A cutter apparatus includes a housing sized to be hand-held, the housing including a channel and openings adjacent to the channel at three different sides of the housing, and a blade carrier sized to fit within and slide along the channel, the blade carrier including three engaging portions that extend from the openings such that a force bearing upon any of the portions can cause the blade carrier to slide along the channel.

A heated utility knife is disclosed for heating a material to be cut in order to soften the material before cutting the material. The heated utility knife is made of a knife portion that has a blade with a distal cutting edge, and a heat source configured to direct heat to a region adjacent the cutting edge. The heat source has a head portion which sits below the cutting blade. Pulling the cutting edge across a material to be cut allows heat from said heat source to be directed to the material to be cut to soften the material prior to cutting.

A cushion back cutter is formed from a first side plate, a second side plate, and a center plate between the first and second side plates. The center plate includes a slot that forms a blade holding pocket with a bottom opening to receive one or more blades. A blade clamp is inserted into the blade clamp opening of the first side plate, and a blade clamp fastener tightens to cause the blade clamp to press the blades against the second side plate to hold the blades in position. The center side plate forms a row guide for guiding the blades of the cutter between adjacent rows of carpet tufts. The row guide may include a region having continuous notches, which tend to move the carpet tufts out of the path of the blades to avoid shearing them.

A folding knife includes a handle and a blade. The handle includes a first side portion and a second side portion. The blade is pivotably coupled to the handle and pivotable relative to the handle about a pivot axis between a closed position and an open position. The first side portion of the handle comprises a first portion and a second portion, the second portion slidable relative to the first portion in a longitudinal direction that is perpendicular to the pivot axis and parallel to a longitudinal axis of the first portion, between a first position and a second position. When the second portion is in the first position, the first portion is prevented from rotating relative to the second portion and the second side portion, and when the second portion is in the second position, the first portion is rotatable relative to the second portion and the second side portion.

A folding knife includes a handle and a blade. The handle includes a first side portion and a second side portion. The blade is pivotably coupled to the handle and pivotable relative to the handle about a pivot axis between a closed position and an open position. The first side portion of the handle comprises a first portion and a second portion, the second portion slidable relative to the first portion in a longitudinal direction that is perpendicular to the pivot axis and parallel to a longitudinal axis of the first portion, between a first position and a second position. When the second portion is in the first position, the first portion is prevented from rotating relative to the second portion and the second side portion, and when the second portion is in the second position, the first portion is rotatable relative to the second portion and the second side portion.

A utility knife includes a housing and a slidable blade assembly configured to selectively receive a removable blade in a blade channel thereof and to slide relative to the housing, such that the removable blade is stored within the housing when the slidable blade assembly is in a retracted position, and a portion of the blade extends outwardly from the housing when the slidable blade assembly is in an extended position. The slidable blade assembly comprises a plurality of notch engaging protrusions configured to move to selectively enter the blade channel to engage one or more notches of the removable blade. The housing comprises a blade release actuator configured to move or permit movement of the plurality of notch engaging protrusions out of the blade channel to permit removal of the removable blade from the slidable blade assembly.

Presented embodiments of the handheld cutting tool are capable of cutting in one of two ways: with the cutting edge of the blade only so as to minimize damage to objects not intended to be cut or, alternately, with the point of the blade as with more typical knives. The tool is comprised predominantly of a handle body, a blade holder and a rotational control assembly for allowing the blade holder to rotate. The blade holder holds either a replaceable isosceles trapezoid utility blade or replaceable single edge razor blade and has, in some embodiments, a portion that isolates parts of the blade from objects not intended to be cut. The rotational control assembly enables the blade holder to rotate between retracted and a plurality of extended positions thus permitting the blade holder to deploy the blade at various angles to facilitate proper cutting of materials.

Presented embodiments of the handheld cutting tool are capable of cutting in one of two ways: with the cutting edge of the blade only so as to minimize damage to objects not intended to be cut or, alternately, with the point of the blade as with more typical knives. The tool is comprised predominantly of a handle body, a blade holder and a rotational control assembly for allowing the blade holder to rotate. The blade holder holds either a replaceable isosceles trapezoid utility blade or replaceable single edge razor blade and has, in some embodiments, a portion that isolates parts of the blade from objects not intended to be cut. The rotational control assembly enables the blade holder to rotate between retracted and a plurality of extended positions thus permitting the blade holder to deploy the blade at various angles to facilitate proper cutting of materials.

A cold knife holder capable of pushing and pulling operations, includes a main body forming a chamber and a slot, a handle, a detent member, a first spring and a first steel ball. One side of the main body forms a perforation which communicates with the chamber. The handle includes a sleeve, a connecting rod and a grip rod. Both ends of the connecting rod are respectively connected to the sleeve and the grip rod, and the sleeve is pivotally sleeved on the main body, so that the handle is rotated relative to the main body, and the first or second caulking is connected to the perforation, and the detent member is arranged in the chamber. The first steel ball is pivotally embedded in the perforation, so that the detent member drives the first steel ball to be embedded in the first or second caulking, thereby positioning the handle.

The present disclosure relates to safety blades for use in utility knives, related assemblies and methods of manufacturing. More specifically, the present disclosure relates to safety blades for use in utility knives, related assemblies and methods of manufacture which limit user exposure to associated cutting edges.