Abstract: Devices and methods for removing a spinal disc are provided herein. Discectomy instruments are disclosed that can remove a spinal disc in a single-pass, i.e., without repeatedly inserting and removing the instrument from a patient. In an exemplary embodiment, the discectomy instrument includes a distal housing, at least one cutting blade, and a handle. When the distal housing is positioned adjacent to a spinal disc, a handle can be actuated to advance the cutting blade along a substantially arc-shaped path through the disc. In certain aspects, the path of the blade can correspond to the anatomy of the disc and to the approach used to access the spine. A second cutting blade can be advanced through the disc and can intersect with the arc-shaped path, forming a complete cut. The cut disc can be received in the distal housing and removed from the patient.

Abstract: A fruit or vegetable slicer, particularly suitable for slicing between the edible portion of a watermelon and its rind. The slicer comprises a cutting blade made a thin flexible or bendable food compatible material and having at least one cutting edge; a positioning strip; and a connector mechanism for operably connecting distal ends of the cutting blade and positioning strip to each other and adapted to allow the positioning strip and cutting blade to swivel relative to the connector mechanism.

Abstract: A blade cartridge for a fiber roving chopper comprises an annular support and a plurality of blade holders. Each of the plurality of blade holders comprises a main body portion, a first end, a second end, and a blade. The first end of the main body portion is connected to the annular support. The second end of the main body portion is opposite the first end such that the main body portion is cantilevered from the annular support. The blade is integrally seated in the main body portion and extends between the first end and the second end. In a further embodiment of the invention, the main body portion of the blade holder includes first and second end notches that extend through the main body portion and the blade.

Abstract: A manually operable cutting tool for removing vegetation from a body of water such as along the shoreline of a pond or lake includes a handle and a pair of angularly adjustable cutting blades. The blades are selectively, pivotally adjustable between fully open and fully closed angular positions for ease and safety of handling. An optional floatation bar may be provided for attaching to the blades which allows the blades to be pulled across the surface of the water for collecting floating weeds.

Abstract: An apparatus and method for cutting a material using a water jet. A central shaft is mounted so as to extend outward from a material to be cut. A support member is mounted on the central shaft so as to extend transversely therefrom. At least one water jet cutting head is mounted on the support member so as to be translatable therealong. In addition, the at least one water jet cutting head is mounted so as to be rotatable about the central shaft. By controlling the translatory and rotational motion of the at least one water jet cutting head (for example, using computer numerical control or other computer control), a desired cut pattern can be followed with respect to the material being cut.

Abstract: The cutter of a juicer includes a cutter set provided with a first cutter and a second cutter. The first cutter has its opposite ends respectively slanting to one side of the diagonal edges and forming an upward cutting member having their diagonal edges respectively formed with a cutting edge and their outer ends respectively bent upward to form a flow-guiding wall with a cutting edge at a diagonal edge. The second cutter is S-shaped and positioned over the first cutter, having the diagonal edges of its opposite sides respectively provided with a cutting edge. The first and the second cutter are secured on a rotating shaft, and an included angle between the first and the second cutter is less than 60 degrees. Vegetable and fruit can quickly and evenly be cut and crushed into juice by the cutter set rotating at high speed.

Abstract: The rotary head (10) for garden trimmers, of the type with its cutter means (28, 30) pivoted to the head (10), comprises a lower shell (12) and an upper annular shell (14). The lower shell (12) is fixable coaxially to the trimmer drive shaft (20). The head presents several fixed pins (18) parallel to the rotational axis (10) of the head (10), for pivoting the cutter means (28, 30) provided with an eyelet. The upper shell (14) is coaxially applicable in its working position to the lower shell (12), in which position the cutter means (28, 30) are retained on the relative fixed pins (18), which project upwards from the lower shell (12). To apply the upper shell (14) to the lower shell (12) in said working position bayonet connection means (22, 24) are provided requiring a coaxial movement to cause the two shells (12, 14) to approach each other and a rotation of the upper shell (14) about the lower shell (12), this rotation being opposite to the direction of rotation (R) of the head (10) when working.

Abstract: A method is provided for the punching of a bridge break and thereafter sealing the bridge break during the injection molding process of the lead frame. The bridge breaking tool is placed over the bridge that is to be broken. The collar presses down on the circuit and the punch presses down on the bridge with enough force to form the bridge break. Once the bridge break is formed the punch is retracted from the cavity of the template and molten polymer is injected to flow around the ends of the bridge break. The bridge breaking tool's hold down collars and retracted punch form a molding area for molten polymer to flow over the bridge break and the exposed circuit area. The bridge breaking tool is retracted after the bridge break is encased in the cured molten polymer and the cured molten polymer forms a lead frame structure.

Abstract: A device for slicing the tip from an elongated food product having an elongated housing with a longitudinally extending channel open at one end and closed at its second end. The channel is dimensioned to receive the food product through the first open end of the housing. A plunger assembly is slidably mounted to the housing adjacent the second end of the housing and in the direction transverse to the channel axis. The plunger assembly includes a blade moveable between a retracted position in which the blade is retracted from the channel and an extended position in which the blade extends across the channel.

Abstract: The present invention is directed to novel polypeptides and to nucleic acid molecules encoding those polypeptides. Also provided herein are vectors and host cells comprising those nucleic acid sequences, chimeric polypeptide molecules comprising the polypeptides of the present invention fused to heterologous polypeptide sequences, antibodies which bind to the polypeptides of the present invention and to methods for producing the polypeptides of the present invention.

Abstract: A cloth cutting device used to cut perfect circular pieces from a piece of cloth. The cloth cutting device is positioned over the cloth and utilized in incising a perfect circular piece from the cloth. The device has a base support assembly that maintains the cutting device in a stationary position on the cloth to be cut, a cutting blade enclosed in a housing assembly, a rotateable handle, and a shaft interconnected between the housing assembly and the handle. Rotation of the handle causes the shaft to rotate, effectuating downward movement of the blade onto and into the cloth.

Abstract: A grass and soil trimming system comprises a motor driven yard tool. The tool has a housing in a generally cylindrical configuration with a periphery and a female threaded interior and an interior locking screw. The female threaded interior of the mounting screw is adapted to screwably couple to a male thread of a drive shaft on the tool. A first pair of metal cutting blades is coupled to the periphery. The blades are adapted to cut and dig soil. The blades have a generally triangular configuration. A second pair of metal cutting blades is coupled to the periphery. The blades are adapted to cut grass. Each blade has a generally triangular configuration. The second cutting blades have a generally 90 degree bend.

Abstract: Devices for cutting sod around sprinkler heads. The device may include a handle coupled to a shaft. The shaft may be coupled to a cylindrical cutting assembly that includes one or more blades that are inserted into sod that has grown over a sprinkler head. The cutting assembly is rotated to cut the sod. Alternatively, a cylindrical cutting assembly may be coupled to a drive motor that mechanically lowers the cylindrical cutting assembly into the sod and rotates the cylindrical cutting assembly to cut the sod growing over the sprinkler head.

Abstract: Antigens for the detection of antibodies to Neospora parasites for the diagnosis of neosporosis have been identified. Recombinant antigens may be produced by expression of DNA sequences derived from Neospora caninum. Both antigens are capable of detecting antibody responses in animals experimentally inoculated with N. caninum but show no evidence of cross-reactivity with serum from animals inoculated with closely related parasites such as Toxoplasma gondii or Sarcocystis species.

Abstract: A circular hole cutting device (1) for making a circular hole in an object comprises a bit holder (3) which can be attached to a drive shaft of an electric power tool in such a way that the bit holder (3) with a bit (2) attached to a far end of the bit holder (3) rotates together with the drive shaft on a common axis, a cover (4) which is fitted to the bit holder (3) relatively rotatably about its axis, and a radial rod (5) attached to the cover (4) such that the amount of projection of the radial rod (5) in a direction intersecting the bit (2) can be varied. The physical size of the cover (4) is determined such that the bit (2) projects from a far end of the cover (4). The radial rod (5) has a pivot shaft (52) having a pointed end formed by bending a terminal part of the radial rod (5) approximately at right angles.

Abstract: An apparatus for rendering ovals of adjustable sizes and ellipticity upon various materials. An oval cutter comprises a clickerplate for adjusting the ellipticity of ovals in a single movement. The clickerplate can be rotated about a base using a knob mounted on the clickerplate. One embodiment of this invention comprises a storage compartment in the knob which can hold, for example, extra blades. A further embodiment of this invention comprises an arm that translates through the clickerplate and a swivel plate used for setting the overall size of the oval by locking the arm at a set length. In yet a further embodiment of this invention, ovals can be rendered in either a clockwise or a counterclockwise direction and an arrow can indicate the direction in which the apparatus is set to render ovals.

Abstract: A cutting tool for locating an axis in a first member and cutting a sized hole in a second member overlying the first member. The cutting tool includes a base assembly and a cutter assembly which may be used independently of the base assembly. The cutter assembly includes a guide member, a cutting blade and a handle structure with a face portion. The guide member is coupled to the handle structure and extends from the face portion. The cutting blade is coupled to the handle structure such that the cutting blade extends from the face portion and is spaced radially outward of the guide member. The base assembly has a base structure, a stem member and a pilot aperture. The base structure has a first side adapted to contact the second member and a distal side adapted to contact the first member. The stem member is coupled to the distal side of the base structure and is adapted to engage a hole in the first member to locate the axis in the first member.

Abstract: An apparatus for rendering ovals of adjustable sizes and ellipticity upon various materials. An oval cutter comprises a clickerplate for adjusting the ellipticity of ovals in a single movement. The clickerplate can be rotated about a base using a knob mounted on the clickerplate. One embodiment of this invention comprises a storage compartment in the knob which can hold, for example, extra blades. A further embodiment of this invention comprises an arm that translates through the clickerplate and a swivel plate used for setting the overall size of the oval by locking the arm at a set length. In yet a further embodiment of this invention, ovals can be rendered in either a clockwise or a counterclockwise direction and an arrow can indicate the direction in which the apparatus is set to render ovals.

Abstract: This invention relates to the cutting or trimming of grass directly over the top of the pop-up sprinkle head's shaft. In the past the grass and roots would cross over the path of the sprinkle's pop-up shaft restricting or stopping the upward movement of the shaft and deflecting or stopping the water spray pattern of the sprinkle. This invention will cut a very narrow cylindrical shaped hole down to the top of the pop-up head of the sprinkler eliminating the unsightly bowl shape cut in the grass of the prior patents and leaving a clean unrestricted small opening in the grass.

Abstract: A vegetation trimmer attachment head includes a main body, a plurality of elongated blades extending radially outward therefrom, and pins to pivotably attach the blades to the main body. A single pin cover mates with the main body to retain the pins in place. The pin cover is held in place by being interposed between the main body and the vegetation cutting device. The attachment head is simple and can be quickly disassembled and reassembled without tools because it has few parts, none of which are threaded or snap together.

Abstract: A cutting device is operable with one hand for cutting an elliptical shape in a sheet of material. The cutting device includes an elliptically-shaped base plate for placement on the sheet material and a cutting member for simultaneous pivotal and translatable movement with respect to the base plate. The base plate has a first pivot point that is movable along a first axis, while the cutting member has a second pivot point that is movable along a second axis substantially perpendicular to the first axis. The base plate and cutting member are operably connected to each other at the first and second pivot points. A knob is connected to one of pivot points and is sized to be grasped by one hand and rotated. Rotation of the knob about the one pivot point causes the cutting member to rotate and slide in an elliptical pattern with respect to the base plate to thereby cut an elliptical shape in the sheet of material.

Abstract: A circle cutter, particularly a cutting instrument, is adapted for cutting circles on objects. It includes a rotary disc assembly and a cutting tool. The rotary disc assembly is made up of an outer ring board, a rotary disc, a fixing ring cap and a plurality of beads. The rotary disc mounted to the outer ring board is movably limited in place by the fixing ring cap and are rotatably supported by the multiple beads received in a tunnel defined between the outer ring board and the rotary disc. On the rotary disc are disposed a plurality of holes marked with a numeral that is the diameter of a circle to be cut. The cutting tool has a hollow pen stick and a cutting knife attached to a knife clip that is movably engaged with a holding head. The holding head is further secured to the bottom end of the hollow pen stick and is free to rotate with respect to the pen stick so that the cutting knife can be smoothly guided in a cutting operation.

Abstract: A hand tool for carving a generally ellipsoid shaped vegetable, such as a potato, turnip, radish or carrot, into a predetermined shape, particularly a mushroom shape, is provided. The hand tool includes a hollow elongated cylinder that has a first end terminating in a circumferential cutting surface, a second end, and an outer surface. At the outer surface of the cylinder between the first and second end of the cylinder, there is attached a wire form. The wire form extends outwardly from the outer surface of the cylinder. A cutting wire is attached to the first end of the cylinder and the end of the wire form furthest from the outer surface of the cylinder. Also disclosed is a method of using the hand tool to carve a generally ellipsoid shaped vegetable into the shape of a mushroom.

Abstract: A rotary cutter for cutting holes of various sizes in ceiling tile in connection with the installation of light fixtures. The cutter includes an enclosure which functions as a jig for receiving and accurately positioning tile members prior to the cutting operation. The lower portion of this enclosure functions as a waste receptacle following the cutting operation. A drive shaft turns a pair of arms bearing two cutter knives for rotation within the structure thus cutting holes in the ceiling tile. The cutting blades are biased upwards for returning to a non-cutting position upon completion of the cutting operation. The cutting knives are radially adjustable along the arm on which they are mounted. A conventional electric drill is mounted to the other end of the drive shaft for imparting rotary motion to the blade arm.

Abstract: A circular hole cutting apparatus comprising a support frame, having a forward end, a rearward end, a lower end, and an upper end; the forward end forming a cutting bit mounting means, capable of rotatably retaining a cutting bit so that the upper end of the cutting bit may upwardly extend from the upper end of the support frame, and so that the lower end of such a cutting bit may downwardly extend from the lower end of the support frame; and the lower end of the support frame forming a radius arm mounting means, the radius arm mounting means being capable of adjustably retaining a radius arm, so that the rearward end of the radius arm may alternately extend rearwardly from the rearward end of the support frame and retract forwardly from positions rearward of the rearward end of the support frame.

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: A circular material cutter having a disk-shaped base with a rotating top member attached thereto via a spring and shaft assembly. The top member has a handle formed on its top surface and four legs which extend downwardly from the top surface radial edge, and which have cutting wheels rotatably mounted on their bottom ends of the legs. The shaft and spring assembly extends upwardly from the radial center of the base and is held in a spring receiving portion which extends downward from the radial center of the top member. The shaft and spring assembly allows the top member to be rotated above the base, and also biases the top member away from the base when the device is not in use, to keep the cutting wheels in a retracted position. To use the device, one places the device on sheet material to be cut, pushes down on the top member, and twists it 90.degree. using the handle, thereby causing the four cutting wheels to cut a circular piece from a sheet of material.

Abstract: An annular base carries a moveable cam member. Downwardly extending circumferentially arranged arcuate blades are mounted along the outer edge of the base to form a circle. Downwardly extending circumferentially arranged arcuate blades are pivotly mounted along the inner edge of the base to form a circle within the circle of fixed blades. Springs are interposed between radially aligned pairs of blades. The apparatus is positioned over the bagel such that the blades enter the interior of the bagel. The cam member cooperates with the moveable blades to move each blade in a substantially radial direction, against the intervening spring. The blades move from a position spaced from the aligned fixed blade to a position proximate to the aligned blade, as the cam member is moved, causing the dough to be pinched between the aligned blades. The dough is extracted as the apparatus is removed from the bagel.

Abstract: A coring apparatus for coring a substantially annular food item includes a base member, a post member extending from the base member, the post member including a drive shaft guide structure, a drive shaft having a longitudinal axis and being rotatably fitted through the guide structure, the drive shaft having shaft external threads, a mechanism for engaging the shaft external threads, so that rotating the drive shaft relative to the post member causes the drive shaft to advance along the longitudinal axis relative to the post member, a food item cutting element mounted on the drive shaft including arched blades having blade cutting edges radially spaced from the drive shaft longitudinal axis for cutting along a circular path, and a food item holding structure connected to the mounting base and located within the longitudinal axis of the drive shaft and adjacent to the cutting element for securing the food item against rotation relative to the post member so that the cutting element is advanced toward the hold

Abstract: A device is disclosed for trimming grass from around a pop-up sprinkler having an annular top and a pop-up head concentrically mounted within the top. The device comprises a handle having a grip mounted on one end. A circular cutting element is mounted on the opposing end, the circular cutting element having a diameter larger than that of the annular top. A centering device mounted within the interior of the circular cutting element engages the pop-up head and centers the device over the top.

Abstract: An improved measuring and cutting tool is provided, which consists of an extensible tape measure. A mechanism for cutting is on a first end of the extensible tape measure. A structure for guiding is on a second opposite end of the extensible tape measure. The guiding structure will allow the cutting mechanism to make quick and accurate cuts into a piece of soft thin material.

Abstract: An adjustable size hole cutter for ostomy adhesive wafers is disclosed having firstly a cylindrical body adapted to hold a cutting blade, a cylindrical pilot protruding outward from the bottom circular face of the cylindrical body to reside in a preformed hole in the colostomy wafer, and a Tee handle protruding outward from the top face. Adjustment of the blade's distance from the center of the cylindrical body for cutting different sized holes is accomplished by means of removable adjustment spacers situated in a radial slot formed in the wall of the cylindrical body, the cutting blade secured to the outside adjustment spacer by a set screw passing through a hole in the blade and aligned holes in the adjustment spacers. A circular base plate with centrally located hole receives the pilot of the adjustable hole cutter. The ostomy wafer is placed between the bottom face of the cylindrical body and the base plate whereupon the blade cuts into the wafer and the circular hole cut as the cutter is rotated.

Abstract: A circle cutter having an elongate body is disclosed, the body having an awl perpendicularly affixed to one end and a crank handle affixed to the other. The crank handle stands out from the same face of the body as the awl's handle, and parallel to its axis. The awl's bit projects, coaxial with its handle, from the body's opposite face. A cutting block is disposed in a channel in the cutter's body and is variably positionable therealong. One embodiment of the cutter includes a slot in the channel through which the shank of a thumbscrew projects for tightening the cutting block into a fixed position. Another includes a detent ball in the cutting block, the ball being able to engage one of a regularly-spaced series of depressions in the channel's wall.

Abstract: A scooper for a circular piece of bread-like material including a holder having a substantially circular base, a wall extending vertically upwardly from the perimeter of said base, and a gripper mounted on said base; the holder is adapted to receive the material, thereby preventing it from rotating. A rotor having a substantially circular bottom with a periphery fitting within the base and adapted for rotation with respect thereto. A cutter having a blade is located on the bottom and extends therebelow, so that said blade is at the leading edge of said cutter as the rotor turns. The blade is arcuate, whereby rotation of said rotor causes the blade to cut into the piece and remove a portion thereof.

Abstract: An apparatus and method for treating baked goods, such as bagels, is disclosed. An outer ring including downwardly projecting pins is secured to the cut surface of a previously sliced bagel half. A cutting disc having an upwardly projecting handle and downwardly projecting cutting blades is rotatable within the outer ring, which out ring serves as a guide and as a bearing. By turning the cutting disc while maintaining the bagel and the outer ring stationary, a circular trough will be cut in the dough of the bagel half by the cutting blades. In an antomatic version of the apparatus, a flat, upwardly projecting screw is mounted in a base plate and a bagel half is secured by base plate mounted pins about the flat screw. A cutting disc is provided with a slot to receive the flat screw in a manner to automatically rotate the cutting disc relative to the bagel when the cutting disc is axially moved toward the base plate.

Abstract: A pipe saddle for providing a reliable connection to a pipe. The present invention uses a barb seal which embeds within the surface of the pipe to lock the pipe saddle in place and prevent leakage. The barb seal is formed from the material of the pipe saddle so that no deterioration occurs. The barb seal has an oval shape to provide better sealing capabilities. T-bolt connectors allow the device to be individually tightened on each side of the pipe while allowing the body portions of the saddle to be pivotally opened yet maintained as a single unit to allow easy implementation.

Abstract: A cutting tool assembly of the type including a pilot holder and a cutter blade received in a transverse through slot in the pilot holder. The cutter blade is mounted in the transverse slot in the pilot holder in a manner to allow ready replacement of the pilot blade and in a manner to allow the cutter blade to self-align with respect to the central axis of the pilot holder to minimize the stress loading in the cutter blade and minimize blade breakage. In one embodiment, the cutter blade is mounted in the pilot holder by a cartridge which is received in a threaded bore in the pilot portion of the pilot holder and which includes a spring biased pin projecting upwardly into the transverse slot in the pilot holder. In another embodiment, the cutter blade is mounted in the transverse slot in the pilot holder by a pin and slot connection provided by a slot in the blade and a pin passing through the pilot holder.

Abstract: An ophthalmic device includes a base, a suction ring connected to the base to secure the device to the eye of a patient, and a support piece carrying a pair of securely ganged cutting blades having cutting edges oriented at an angle with respect to one another. The support piece can be raised and lowered with respect to the eye surface, and rotated around the base to simultaneously form two incisions along a path on the eye. The device includes a mechanism for progressively advancing the two cutting blades together in the support piece, while maintaining a constant angular cutting edge relative orientation, to a position in which the cutting points of the two cutting blades are touching, and can thus be used to form an annular wedge-like cut of eye tissue in the treatment of refractive errors. In alternative embodiments, laser or electrosurgical knives may be used instead of cutting blades.

Abstract: A gasket cutting assembly for cutting an inner diameter and an outer diameter of a gasket simultaneously. The assembly has a rectangular bar base portion with a longitudinal slot therein and a blade at one end. An L-shaped adapter arm with a second blade at the L-shaped end also has a longitudinal slot and the arm and base are attached to one another by a bolt through the longitudinal slots. Graduations on the base and arm facilitate settings of the blades for cutting the internal and outside diameters of a gasket simultaneously.

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 guide device for a tool such as a manual planing machine or a manual milling machine comprises a compass point connected to the tool by several guide rods. Curving or circular working processes are possible with this guide device. The compass point is preferably supported in a connecting piece connected to the guide rods, with the guide rods passing through the housing of the working tool. A sliding block additionally arranged on the guide rods carries the weight of the working tool and assures a constant, uniform working depth. When processing edges, the guide rods connected with the working tool may be mounted on an angle piece, which by means of further rods is connected with the connecting piece carrying the compass point.

Abstract: A circular cutter 10 has a drive shaft 11 that turns a beam 30 bearing one or two cutter knives 50 rotated within a drum 20 mounted on shaft 11 to surround beam 30. A pressure shoe 25 on the bottom of drum 20 has a central opening 26 within which cutter knives 50 can turn, and drum 20 is biased downward relative to shaft 11 and beam 30 so that pressure shoe 25 engages and holds a work piece 60 as it is cut. Pressure shoe 25 is preferably interchangeable to afford different sizes of central openings 26 for different radii of cuts, knives 50 are preferably radially adjustable along beam 30, and drum 20 is preferably transparent to serve as a guard that the user can see through.

Abstract: A generally cup shaped cutting head for fitting over and around the sprinker head includes a generally circular cutting edge for cutting around a sprinkler head, and a cleaning brush mounted concentrically within the cutting head and recessed from the cutting edge for engaging and cleaning the surface of a sprinkler head, with the cutting head detachably mounted on the end of an elongated drive shaft which is adapted to be driven by an electric drill motor or the like.

Abstract: The invention relates to apparatus for cutting and removing a core of ice from an expanse of natural ice such as, for example, a lake or river so that fishing can be accomplished through the remaining open hole. The apparatus consists of a cylinder with ice-cutting teeth on its lower end, lands around its periphery and a handle employed for rotating the cylinder.

Abstract: A cup-shaped grass cutting implement which is removably attached to existing rotary cutting heads of powered edgers of the type that can orient the cutting head to rotate about a vertically displaced axis. A quick disconnect feature which allows the cup-like attachment to be retained by the flat blade of such a powered rotary cutting head without interfering with the already assembled blade. The invention provides for a quickly administered pair of retainment fingers which surround the flat cutting blade at points slightly apart from the shaft arrangement for rotating such flat blades.

Abstract: A kitchen utensil has threaded end portion, a substantially straight middle portion connected to the threaded end portion and a plain portion disposed at an angle to the middle portion. A cutting member with a front cutting edge, a back edge and an aperture going therethrough from the front cutting edge to the back edge is attached to the threaded end portion in such manner that an axis of the aperture is substantially parallel to the directions of the threads.

Abstract: A tool is described for facilitating the cutting of printed circuit board wires necessitated by changes in the circuit design or the occurrence of electrical faults. The tool is particularly useful with circuit boards having high density wiring, where it virtually eliminates damage to printed wires adjacent to those being severed. Comprised of a guide pin centrally disposed with respect to an annular cutting edge, the tool uses the former for registration with the component and via holes in the circuit board, and the latter, to sever the printed wires from the electrically conductive pads surrounding the holes. The depth of the cut is carefully controlled by the tool and may be chosen to eliminate electrical faults lying below the surface in a multilayer board.

Abstract: The invention is a tool for use with a machine tool such as a drill press or the like for cutting circular openings or segments thereof in sheet material. The device includes a pilot drill and an articulated gear train operatively coupling a tool holder and cutting tool to a pilot drill. The articulated gear train is received within a housing which is rotatable about the axis of the pilot drill to enable movement of the cutting tool along an arcuate path about the axis of the pilot drill.

Abstract: A device for cutting out and extracting the pulp from a vegetable or fruit, particularly a pineapple, while leaving the peel or rind intact for later use. The device has a central coring tube depending from a handle and secured for rotation therewith. The coring tube enables the pulp to be severed from the hard, fibrous core of the fruit or vegetable as it is displaced axially. A vertically cutting blade also depends from the handle and is spaced radially from the axis of the device so that as the handle is rotated the cutting blade describes a cylindrical cut adapted to sever the pulp from a shell including the peel or rind. The device also comprises one or more radial cutting blades extending from the coring tube to the radial position of the vertical cutting blade depending on whether a cylindrical mass of pulp is desired or rather a stack of slices. A plurality of radial blades may be fixed to the coring tube.

Abstract: A circle cutter, particularly a cutting instrument, is adapted for cutting circles on objects. It includes a rotary disc assembly and a cutting tool. The rotary disc assembly is made up of an outer ring board, a rotary disc, a fixing ring cap and a plurality of beads. The rotary disc mounted to the outer ring board is movably limited in place by the fixing ring cap and are rotatably supported by the multiple beads received in a tunnel defined between the outer ring board and the rotary disc. On the rotary disc are disposed a plurality of holes marked with a numeral that is the diameter of a circle to be cut. The cutting tool has a hollow pen stick and a cutting knife attached to a knife clip that is movably engaged with a holding head. The holding head is further secured to the bottom end of the hollow pen stick and is free to rotate with respect to the pen stick so that the cutting knife can be smoothly guided in a cutting operation.