Abstract: The v-cut knife of the present invention has a handle connected to a blade section comprising a blade with a proximal end, a distal end, a top surface and a bottom surface. The bottom surface is formed into a sharp cutting edge. A generally v-shaped section is disposed between the proximal and distal ends of the blade. The v-shaped section is shaped and configured to cut away a waste portion of a plant from the useful produce portion. The knife is particularly useful for cutting the tail portion of a Romaine lettuce plant so as to maximize the amount of produce portion remaining after removing the waste core portion of the plant. When configured as described herein, the knife efficiently and safely cuts the tail section of a Romaine plant so as to leave as much produce behind as possible.

Abstract: A cup of plastics material incorporating foaming agents has thin wall portions, namely a base (101), a lower side wall (102) and an upper side wall (103). These portions have their wall thickness determined by mold part gap. The cup also has thick wall portions, namely the corner (104), the band (105) and the rim (106), in which foaming occurs after mold opening so that the wall thickness is increased beyond that provided by the mold.

Abstract: A knife for producing sections of a wide variety of specimens and/or for creating extremely high-quality surfaces, in particular for producing thin sections and semi-thin sections by means of microtomes or ultramicrotomes, preferably for examinations with an electron microscope, having a blade and a holder for the blade, is characterized in that the blade is fabricated from an artificial diamond.

Abstract: An egg breaking knife used in an egg breaking device which increases the yield of the egg breaking device. The upper edge of the egg breaking knife is in a “V” shape. The “V” shape creates a lower drainage point to eliminate any “damming” of egg shell contents which may occur in the egg shell halves. The knife edge of the egg breaking knife of the present invention may also include a vertical slot or opening, preferably at the vertex or intersection point of the “V” shape, which assists in preventing “damming” of egg contents and enhances the drainage of egg contents from the egg shell halves. The lower edge of the egg breaking knife of the present invention may include a drip point, preferably located below the vertical slot, which serves to collect all egg content drippage at a single location, to ensure that a minimal amount of egg content drippage remain adhered to the egg breaking knife during egg content dumping.

Abstract: Ceramic blade (1) of a cutting tool, in particular a knife, with a cutting edge (10) and a rounded off upper edge (12) running opposite to the cutting edge (10). The rounded off upper edge (12) makes possible, in comparison to the conventional sharp-edged transitions, a substantial increase in the break resistance in the case of bending forces.

Abstract: A knife and a knife holder for a cutting wheel are disclosed for a food product slicing apparatus. The knife has a gauging surface, a cutting edge and a second edge located opposite to the cutting edge, the second edge extending obliquely with respect to the cutting edge such that the knife has a generally triangular configuration. A plurality of such knives are mounted between a hub and a rim of the cutting wheel such that the knives extend generally radially from the hub and wherein the second edge and gauging surface form a juncture, which extends substantially parallel to the cutting edge of an adjacent knife blade to form a gate opening, the thickness of the gate opening accurately controlling the thickness of the sliced food product. A knife holder for use with a separate blade is disclosed, the holder formed to provide the desired gauging surface defining a gate opening when assembled to a cutting wheel with other knife holders.

Abstract: A modified reciprocating saw blade for use in association with a saw blade holder, shingles and nails, the apparatus comprises a blade member being formed in an elongated planar configuration with an inboard end, an outboard end and a central section, the inboard end being formed as a universal blade mount to permit coupling to a saw blade holder in an operative orientation, the central section having parallel linear upper and lower edges; and the outboard end of the blade member having an upper edge and a lower edge, the lower edge including a cutting region having a length of about one-third of the total length of the blade member, the cutting region including a plurality of cutting teeth, in an operative orientation the inboard end of the blade member being coupled to a saw blade holder, the configuration of the blade member permitting a user to cut nails which secure shingles without damaging adjacent shingles.

Abstract: A cutting attachment for use with a vegetation cutting device. The cutting attachment has a body with a generally planar coupling portion and a central axis of rotation. In one embodiment, the body further includes a conical central wall portion extending radially outwardly and in a first direction from the coupling portion and the axis and a circular outer wall portion adjoining the central wall portion and extending generally radially outwardly therefrom. The central wall portion defines a conically-shaped self-cleaning inner cavity disposed symmetrically about the axis. The outer wall portion has a generally smooth outer surface which serves as a skid plate. An outer self-cleaning cavity is formed by an outer surface of the central wall portion and an inner surface of the outer wall portion. A coupling assembly, which can include an adapter having first and second clamping elements, is carried by the coupling portion for coupling the body to the cutting device to cause rotation about the axis.

Abstract: To control the angle of an incision by a surgical scalpel during microsurgery, a scalpel has a double-beveled thin blade with reflective and light-absorbing matted portions on its surface whereby glare from the reflective portions of the blade indicates the angle of an incision. The matted portions are spaced longitudinally along the blade of the scalpel against a reflective background. A source of light in the microscope is reflected into the eye piece of the microscope from the blade so that the pattern of reflective and matted portions indicates the angle of the blade with respect to the light source.

Abstract: A fencing blade is described comprising a substantially planar elongate strip having at least a portion thereof shaped to be non-planar in cross-section. In a preferred embodiment of the invention, a foil or sabre type blade is made from a planar, tapering, elongate steel billet pressed into a `U` or `V` shape along substantially two thirds of its length, the remaining one third of the blade being left flat. The blade may be formed of separate tang/shoulder and blade sections, which may be releaseably or permanently connected together.

Abstract: The method of manufacturing the knife blade (1), comprises the following steps: by stamping the two faces (1a, 1b) of a blade blank (1), a series of protuberances (2, 3) are formed, extending transversely to the length of the blade and, during the same stamping operation, a chamfer is formed on one of the longitudinal edges of the blade, after which, said edge (5) of the blade opposite the chamfer is sharpened. Use especially in order to avoid the blade sticking when cutting food.

Abstract: A scalpel for eye surgery having a blade member with a plurality of juxtaposed cutting sections arranged successively along the blade member. The cutting sections have respective cutting edges defining respective widths and lengths of incisions. Each cutting section is visually delineated from the other cutting sections by different coloration or other marking indicia, such that each cutting section will visually indicate the depth and width of an incision made by inserting the blade member into a body to the depth of the respective cutting section. The scalpel can include both a keratome type blade member and a scleral dissector blade member on a common support stem.

Abstract: A knife utensil for separating shell members of a mollusk comprised of a bar member having a blade portion mounted to retaining members forming a handle and formed with an arcuate upper honed edge and a concave-shaped lower honed edge defining a point at a free end disposed between a centerline of a bar member and a point at which the upper surface meets the retaining members.

Abstract: Part of a cutting blade blank corresponding to a cutting edge is bent such that it is tilted at a grinding angle relative to the longitudinal median plane of the blank. After heat treatment, the cutting edge is sharpened by grinding only that part of the blank which extends from the median plane of the blank until the apex of the cutting edge is in the median plane.

Abstract: A bladed implement such as a knife, has a flexible blade extending from a handle. The blade can be rigidified for use by a series of slides which run along a slot in the blade and which can be forced into and held in end to end contact by an operating mechanism in the handle. The endmost slide engages a stop at the distal end of the slot. When the operating mechanism is released, the slides are free to separate and the flexibility of the blade is restored.

Abstract: A blank for a scraper blade is disclosed. The blade is designed to fit into a utility knife and is bent so as to be useful as a scraper.

Abstract: A pair of tooling assemblies cooperate to cut and strip insulation from an insulated electrical conductor. The first tooling assembly comprises a die type stripping blade and an insulation guide. The first stripping blade has a cutting edge located a predetermined distance from a guide face on the insulation guide. The second tooling assembly comprises a second die type stripping blade and an insulation stop. The second stripping blade has a cutting edge complementary with the first stripping blade cutting edge. The insulation stop has a stop face that is located a predetermined distance from the second stripping blade cutting edge. The two tooling assemblies are aligned in a coplanar plane and clamped in respective toolholders.

Abstract: An edged medical tool, such as scalpels and injection needles, is imparted with unexpectedly improved incisiveness by first providing a carbonaceous coating layer of 1 to 20 nm thickness having a crystalline structure of diamond by a method of plasma-induced vapor-phase deposition in an atmosphere of a mixture of hydrogen gas and a hydrocarbon gas at a microwave frequency of 1 to 10 GHz and then etching the thus formed diamond-like coating layer in a plasma of hydrogen gas to such an extent that the thus etched surface has a roughness of 0.5 to 5 nm.

Abstract: The present invention provides a saw blade for use in a jig saw mechanism in which a drive member is caused to reciprocate axially and to reciprocate a saw blade carried by one end only thereof on said drive member, which saw blade comprises:a. an axially elongated generally rod-like blade member having a grit edge cutting surface thereto, one end of said blade member being secured into a blade mounting member;b. a blade mounting member comprising an axial socket into which the end of the blade member is secured; andc. a securing member extending axially from the said mounting member and adapted to be secured to the reciprocating drive member of a jig saw mechanism.

Abstract: A sword blade is formed of a rib (3) connected by stress concentration studs (19) to a pair of extension strips (2), so that the moment of inertia of the cross section of the rib, with respect to a plane of inertia (x'-x) passing through the concentration studs, is equal that of the strips, all along the length of the sword. The concentration studs concentrate stress in the blade and are deformed and break, thus alerting the user to discard the sword, end faces (10b, 14a) of the rib and extension strips are formed parallel to the plane of inertia, for distribution stress across these faces, to prevent the starting of cracks causing the sword to break.

Abstract: Insulation is precisely cut and stripped from insulated electrical conductors by V type stripping blades. Precision cutting and stripping is assured by forming the blades with complementary and interlocking T and U-shaped cross sections. The blades have increased stiffness compared with prior blades even though the overall thickness of the blade pair does not exceed the overall thickness of prior blade pairs. A blade stop is interlockable with either stripping blade to precisely control the cutting hole size during production. An insulation stop is also interlockable with a selected blade for precisely locating the insulated electrical conductor relative to the blade cutting edges when the blades are closed over the conductor.

Abstract: The rotary cutting tool is used for making holes in walls of thermoplastic materials, e.g. fuel tanks produced by the blowing process. Cutting blades pointing roughly in the axial direction are placed on the free end face of a circular, rotary tool member and said cutting blade score and displace, instead of cutting the material. The cutting blades are arranged at a drawing angle to the axial direction and slope to the inside or outside, depending on whether a burr is or is not required on the opening edge. A holding device in the form of a mandrel or pin ensures that the cut out circular disk does not drop into the container. Thus, a cut is made, which is suitable for further processing by welding on connections or fitting seals and produces no chips and waste which could fall into the container.

Abstract: A cutting tool, preferably in the form of a scalpel, microtome or razor blade is fabricated from single crystal material such as aluminum oxide with a preferential etching process to produce a radius of curvature less than 100 Angstroms on the edge. Depending upon the etchant, the crystallographic orientation of the blank and the resulting different etch rates on blade surfaces, the preferential etching process not only sharpens a preformed edge but also, in one embodiment, produces an opposing edge which meets the sharpened edge at a point, thereby to produce a particularly efficient scalpel blade configuration having two cutting edges converging at a point for plunging and cutting. With respect to the sharpening of the cutting edge, consistent with all other blade forming requirements, the subject blade is made to a maximum sharpness by utilizing a maximum ratio of bevel plane etch rate to edge plane etch rate.

Abstract: An improved utility blade for use with the conventional type of utility knife handle and having means near its cutting points for shielding the cutting points and portions of the cutting edges of the blade from the contents of cardboard cartons.

Abstract: An improved blade holder for rotatably mounting a circular-shaped meat-cutting blade on one end of a power-driven handle. A split metal ring is formed with an interior annular groove for rotatably mounting a circular cutting blade thereon. A pair of arcuate-shaped flanges generally T-shaped in cross section are formed integrally with the ring on opposite sides of the split and extend axially upwardly from the top wall of the ring. The T-shaped flanges form an alignment groove for properly aligning the holder on the power-driven handle, and a pair of radially inwardly extending arcuate projections. The projections are received within a pair of complementary-shaped grooves formed in a lower end of an arcuate-shaped mounting plate for removably mounting the ring on the plate. A pair of holes are formed in the mounting plate through which a pair of screws extend which are engaged in a pair of tapped holes formed in the power-driven handle for mounting the plate and attached ring on the handle.

Abstract: A knife for tableware and kitchen use comprises a supporting body of plastics material in the shape of a common knife and a metal lamellar insert incorporated in the supporting body and having a cutting edge projecting therefrom.

Abstract: A method of restoring and/or protecting a cutting surface so that it has an increased effective life comprises applying to the cutting surface a chlorhexidine compound dispersed or dissolved in a carrier therefor. Novel compositions for use for this purpose comprise solutions or suspensions of chlorhexidine compounds in suitable carriers, preferably together with cationic surfactants.