Abstract: A device for extracting a nozzle assembly of a fuel injection installation. The nozzle assembly is pressed into a cylinder head of an internal combustion engine, with a support pipe, with which the extraction device of the device is supported in the area surrounding the nozzle assembly on the valve cover during the extraction operation. To rule out deformations of the valve cover in case of strong tensile forces and extremely crowded space conditions, provisions are made according to the present invention for a divided support ring, which is formed from two ring sections, which can be placed individually on the valve cover in the area surrounding the nozzle assembly, to be able to be inserted between the support pipe of the extraction device and the surface of the valve cover.

Abstract: A pulling head includes a sleeve which threadably engages a sleeve adapter. A collet is threadably engaged with a drawbar adapter, and the collet and drawbar adapter are disposed and slidable in the sleeve. A set of jaws is disposed in the collet, and a jaw follower is disposed in the collet and contacts the jaws. A spring retainer is disposed in the collet, and engages two springs. Specifically, a first spring is disposed between the drawbar adapter and the spring retainer, and a second spring is disposed between the spring retainer and the jaw follower. The first spring has a higher rating than does the second spring. While the first spring is configured to accommodate inertia loading, the second spring is configured to urge the jaws closed yet be relatively easily overcome by the insertion of mandrels of different diameters.

Abstract: A wrench for an engine clutch of a radio control model includes a handle having a receiving space longitudinally defined in the handle. A control unit is rotatably mounted in the receiving space, and includes a first end formed with a press portion and a second end formed with a hook. The press portion presses a centrifugal lever of the engine clutch when mounting and the hook engages to the centrifugal lever when detaching. A drive unit is pivotally mounted to one end of the handle and corresponds to the press portion. The drive unit includes a hole defined in a free end thereof for receiving an input shaft of the engine clutch. A partition is securely laterally attached to the drive unit and has a separation extending therefrom. The separation is provided for easily detaching/mounting a torsion spring of the engine clutch.

Abstract: On a concomitantly conveyed body changing apparatus (10) having a fitting station (12) and a removal station (14) for the purpose of fitting at least one first concomitantly conveyed body (32), preferably an energy store (32), particularly preferably a battery (32), to a vehicle (50), in particular an industrial truck (50), and, respectively, for the purpose of removing at least one second concomitantly conveyed body (38), which is different from the first concomitantly conveyed body (32), from the vehicle (50), the fitting station (12) feeds the first concomitantly conveyed body (32) to the vehicle (50) essentially in a concomitantly conveyed body loading direction (V), and the second concomitantly conveyed body (38) can be removed from the vehicle (50) by being displaced in the concomitantly conveyed body loading direction (V?) and fed to the removal station (14).

Abstract: A motor mount repair system for use in a component assembly comprising a degradable member, a framework and a bolt-housing shaft of the component assembly includes an adhesion and sealing material comprising at least one resin. The degradable member of the component assembly is coupled in co-operative relationship to both the framework and to the bolt-housing shaft of the component assembly. When applied to the degradable member, the adhesion and sealing material adheres to and seals the degradable member permitting both repair of the degradable member and re-use of the component assembly. The component assembly comprises at least one of a motor mount, a shock absorber end, a sway bar bushing and a control arm bushing. Various methods of repairing the degradable member of the component assembly with the motor mount repair system are used.

Abstract: The present invention is a novel method for the repair of cast aluminum wheels that leak air due to porosity caused during the casting process. It involves deep roller burnishing the surface of the wheel under controlled operating parameters to effectively seal the porosity so that the wheel no longer leaks air.

Abstract: A method for forming metal zipper teeth includes following steps: a step of forming embryonic teeth, a material wire being stamped and cut by way of an upper blank mold and a lower blank mold to form embryonic teeth detaching from the material wire; a step of corner cutting, redundant material at two outer ends on the open end of each of the embryonic teeth being removed by way of an upper corner cutting mold and a lower corner cutting mold so that almost finished zipper teeth can be obtained; and a step of forming, each of the almost finished zipper teeth being worked to have a tooth recess at the top thereof and a tooth jut at the bottom thereof by way of an upper forming mold and a lower forming mold and finished zipper teeth being complete.

Abstract: A frame assembly is manufacturing by initially providing first and second brackets. The brackets are provided by initially providing a closed channel structural member and deforming the closed channel structural member, such as by hydroforming, to have a central body portion having a pair of arm portions extending therefrom. The central portion is then divided, such as by cutting, to provide first and second brackets, each including one of the arm portions. A frame assembly is provided including a component having first and second openings formed therethrough. The arm portions of the first and second brackets are disposed respectively in the first and second openings and secured thereto by magnetic pulse welding.

Abstract: An apparatus and method is provided which permits effective removal of a circuit board from sealed housing while minimizing stress, bending and flexing of circuit board sufficiently to prevent damage to circuit board and its electronic components. The apparatus includes a base to support the housing and a force transmitter to transmit a separation force to the exposed surfaces of one or more connectors of the circuit board. This apparatus effectively distributes the separation force across exposed surfaces of the connectors to create substantially uniform pressure on the connectors and thus the circuit board. The invention also includes steps for separating the circuit board from the housing including, in one embodiment, a separator apparatus for applying a pulling force to the connectors of the circuit board.

Abstract: A baluster driver tool for rotating a baluster to threadably secure it to a support. The driver tool includes a housing having a connector at one end for connecting it to a drill and a baluster-engaging member at the opposite end for receiving the baluster. The baluster-engaging member includes a cavity that is complementary sized and shaped to receive an end of the baluster. When the drill is activated, the housing rotates about its longitudinal axis causing the baluster to rotate in unison with the housing and securing a threaded end of the baluster into the support. In a second embodiment, a smooth tapered end of a baluster is received within a threaded tapered cavity in the housing. The threads secure the smooth tapered end of the baluster within the cavity so that rotation of the housing causes the baluster to rotate in unison therewith and securing the threaded end of the baluster to the support.

Abstract: In one embodiment, a fan mount has a unitary elastomeric structure. The unitary elastomeric structure has a number of fan assembly retainers molded therein, and a number of mounting feet molded therein. In another embodiment, a fan mount has an elastomeric band, shaped to follow a perimeter of a fan assembly, with a number of elastomeric mounting feet extending therefrom. A related method includes 1) deforming an elastomeric fan mount to capture a fan assembly therein, and 2) engaging a number of mounting feet, which extend from the elastomeric fan mount, with installation capture slots on an installation surface.

Abstract: The invention concerns a method of producing a mechanical part on the basis of a computer-aided design of the type comprising: a preliminary step of breaking down the body of the part into elementary strata, a step of manufacturing the elementary strata, a step of reconstructing the part, characterized in that: the procedure incorporates, during the breaking-down of the part, the breaking-down of at least one fluid transport circuit designed and modeled beforehand into elementary chambers (20) according to a break-down associated with that of the part, said elementary chambers are produced in the elementary strata (7i) of the part during the step of manufacturing the strata, and the fluid transport circuit is reconstructed in its entirety during the superposition and assembly of the strata. The invention concerns the mechanical parts produced by said method and for numerous fields of application, for example, but not exclusively, plastic and metal processing.

Abstract: The present invention provides a method for fabricating an implant stent with therapeutic effects. The method of the present invention includes designing and delineating a pattern of the implant stent, drilling a thin metal sheet to form positioning holes, cutting a desired pattern on the thin metal sheet according to the designed pattern, drilling a hole on a line rib of the stent to form a braided structure by a micro discharge processor according to the desired pattern. Then, the stent is cleaned and polished by the electropolish to trim the edge and the rough surface of the stent. Then, the biodegradable material, PLLA, PGA, fibrinogen, the polyurethane-polyethylene oxide mixed with the heparin or the combination thereof, is used for forming the mixed material with the high molecular weight, and is solved in a solvent, wherein another grinded therapeutic drug with the micro or the nano size is added. The drug can be As2O5, an anti-caner drug, or an anti-inflammation drug.

Abstract: A receptacle which is configured to receive a fastener element having a hexagon, or some other polygonal profile, and which is configured to rotationally or angularly orientate the insert fastener element. One version of the receptacle provides that the receptacle is in the open position as a fastener element is dropped therein. Then, a jaw cylinder closes the receptacle, thereby orientating the fastener element. Another version of the receptacle uses springs instead of a jaw cylinder, and orientates the fastener element upon rotation of a threaded shaft of a pulling head.

Abstract: A method for producing a golf club head (42) with a two-piece face component (60) and an aft-body (61) is disclosed herein. The face component (60) includes a formed or forged striking face insert (72) with a front face (81) and a return portion (72) and separately forming the striking face insert (72). The striking face insert (72) is then pressed or swaged into an opening in the front face (81) of the cast face cup (74) while at the same time the cast face cup (74) is coined. The striking face insert (72) is then welded to the face cup (74) on the interior surface of the face component (60). The assembled face component (60) is then attached to the aft-body (61).

Abstract: A washer has a body having at least one inner segment arranged to cooperate with a fastener which has a rod with one end connectable toward one side of an object to be tightened or loosened and another end to extend to another side of the object and having at least one thread portion for engagement by a nut, the body being arranged to enhance a cooperation between the at least one inner segment and the another end of the rod underneath the at least one thread portion to create a friction between the at least one inner segment and the another end of the rod, the body having an axis and being provided with a first outer surface located at one axial side and adapted to cooperate with the nut threadingly connected with the rod on the another end, with a second outer surface located at an opposite axial side and adapted to cooperate with the object, and with at least one inner surface adapted to cooperate with the at least one inner segment, so that when a tool is applied and the nut is turned by the tool to overc

Abstract: A system for manufacturing a tool within a laser sintering system includes a chamber enclosing a sinter material. The laser sintering system grows or sinters the tool from the sinter material in response to signals from a controller, which generates the signals as a function of a predetermined tool design. The predetermined tool design includes several sections that are grown separately and are later coupled together.

Abstract: The present invention provides a device and method for fastening structural members, particularly for fastening a deck member to a deck joist. The device and method provide the ability to affix fasteners in a manner which reduces their visibility on the deck and which reduces the occurrence of moisture infiltration around the fastener. The device has a base plate having at least two bores therethrough and at least two jig bodies affixed in different orientations atop the base plate, each of the jig bodies having an angled bore, the angled bores in communication with a respective one of the base plate bores, at least one of the bottom ends of the angled bores in communication with a space between a pair of deck members, the angled bore in communication with the space for receiving a fastener drivable therethrough into a side face of one the deck members and into a joist below.

Abstract: A process of making a hinged access hatch for use in marine and RV industries includes selecting a stainless hinge having a pair of leaves and rotating on a pentel or pivot pin and placing a portion of one leaf of the selected hinge into an access patch door mold and sealing around said one leaf extending into said excess door hatch mold to prevent plastic in said mold from contacting the moving portion of said hinge. The access hatch door is then molded in the access hatch mold having a portion of the one leaf of the hinge molded therein. The molded access hatch door has been removably attached to an access hatch frame by attaching fasteners through the plurality of openings in the other hinge leaf whereby an access hatch eliminates the need for hinge door fasteners while improving the strength of the access hatch door attachment to the access hatch frame.

Abstract: The invention relates to an optoelectronic apparatus in which a shielding cage is integrated in a housing to reduce electromagnetic interference. The invention further relates to methods for production of an optoelectronic apparatus having a shielding cage integrated into a housing portion thereof.

Abstract: A method for forming an armature for an electric motor includes securing a lamination stack having slots therein on an armature shaft. A commutator is secured on one end of the armature shaft. Magnet wires are wound in the slots in the lamination stack and ends of the magnet wires are secured to the commutator. Plastic is molded around the lamination stack, commutator and magnet wires. Excess plastic is machined off. The magnet wires can have a layer of heat activated adhesive that is activated when the plastic is molded. Slots in the lamination stack can include slot liners formed of thermally conductive plastic. A fan can be formed when the thermally conductive plastic is molded to encapsulate the magnet wires.

Abstract: The disclosure is concerned with a bonding method for bonding metallic members, which comprises the steps of: fitting a metallic members to another metallic member, followed by effecting preliminarily plastic bonding by means of a preliminarily bonding punch; and generating compression force in an axial direction of the members in the vicinity of the fitting portion of the bonding members after the preliminarily plastic bonding, and allowing part of the material of the bonding member to effect plastic-flow in such a manner as to fill a gap defined between the metallic members, so as to plastically bond the members; whereby the members are tightly integrated with each other.

Abstract: The present invention provides a method of manufacturing a bismuth based oxide superconducting wire, comprising steps of preparing a raw material powder, and subjecting the raw material powder to plastic working and heat treatment; wherein the raw material powder contains the superconducting phases containing Bi, Pb, Sr, Ca, Cu, and O in a composition ratio of approximately 2:2:1:2 (Bi+Pb):Sr:Ca:Cu, and the non-superconducting phases containing Pb; wherein the composition ratio (Bi+Pb):Sr:Ca:Cu of the raw material powder is approximately 2:2:2:3; and wherein the ratio of the non-superconducting phases to the superconducting phases is 5 wt % or less; or wherein the raw material powder contains orthorhombic superconducting phases containing Bi, Pb, Sr, Ca, Cu, and 0 in a composition ratio of approximately 2:2:1:2 (Bi+Pb):Sr:Ca:Cu; and wherein the composition ratio (Bi+Pb):Sr:Ca:Cu of the raw material powder is approximately 2:2:2:3.

Abstract: A method for winding transformers is adopted for use on Sub-miniature Tube Transformers. The transformer includes a winding shaft which has a winding zone. At least one layer of primary coil is wound on the winding zone, and a first insulation layer is covered on the wound primary coil. Then a plurality of layers of secondary coils are continuously wound on the first insulation layer. Each layer of the secondary coils is covered by a second insulation layer such that the second insulation layer is applied to the secondary coil without the wire of the secondary coil being cut. Thus short circuit resulting from peeling off of the lacquer on the copper wires during winding the secondary coils can be avoided, and electric output characteristics of the transformer are improved, and the reliability and quality of the transformer are enhanced.

Abstract: Packing according to the invention includes a cylinder portion which extends in a direction of an axis, and in which a diameter of a portion in one end side is increased when the packing is fitted to an object. The cylinder portion includes a fold portion which has a tortuous periphery in a cross section orthogonal to the direction of the axis.

Abstract: A tube expander, in which a part of the reference stand is slidably attached to the support column or other member through the slide unit, can be established in the poor environment where dusts and dirts are in the air or when the tube expander for heat exchanger tubes is extremely frequently used, where only the slide body that is worn down can be removed from the slide unit means and a new slide body is attached through the fastening means easily at low cost, thus, there is no need to replace the reference stand itself.

Abstract: A component placement apparatus includes: a tray storing device for storing at least one tray that contains, e.g., components; a buffer on which components picked-up from the tray, by means of a first component pickup and placement device, may be temporarily stored; and a second pickup and place device for picking-up a component from the buffer and placing the component on a substrate.

Abstract: In one aspect, the invention includes a method of forming integrated circuit packages. A base having a plurality of pins extending upwardly therefrom is provided. A support is provided over the base. The support has an upper surface and a plurality of holes extending therethrough. The pins extend through the holes and upwardly beyond the upper surface of the support. An actuator is provided beneath the support. A board having a plurality of integrated circuits bonded thereto is provided. The integrated circuits form a repeating pattern of integrated circuit packages across the board, and the board has a plurality of holes extending through it. The board is placed over the support upper surface with the pins extending into the holes in the board. While the board is over the support upper surface, it is cut to separate the integrated circuit packages from one another. After the cutting, the support is vertically displaced by the actuator to lift the support off the pins.

Abstract: A sensor utilizing a non-leachable or diffusible redox mediator is described. The sensor includes a sample chamber to hold a sample in electrolytic contact with a working electrode, and in at least some instances, the sensor also contains a non-leachable or a diffusible second electron transfer agent. The sensor and/or the methods used produce a sensor signal in response to the analyte that can be distinguished from a background signal caused by the mediator. The invention can be used to determine the concentration of a biomolecule, such as glucose or lactate, in a biological fluid, such as blood or serum, using techniques such as coulometry, amperometry, and potentiometry. An enzyme capable of catalyzing the electrooxidation or electroreduction of the biomolecule is typically provided as a second electron transfer agent.

Abstract: A plurality of individual circuits are formed on a substrate. Each of the individual circuits is formed with electrical contacts. A spacer is sealed onto the substrate, the spacer peripherally enclosing each of the individual circuits while exposing the conductive contacts. A cover is positioned over the spacer is and integral with it. First conductive feedthroughs penetrate the cover, the first conductive feedthroughs positioned peripheral to each of the individual circuits. Conductive pads are formed on a bottom surface of the cover, the conductive pads in electrical continuity with the conductive contacts of the individual circuits. Conductive paths are formed on the bottom surface of the cover, the conductive paths each joining at least one of the conductive pads with at least one of the first conductive feedthroughs thereby establishing electrical continuity between the individual circuits and the first conductive feedthroughs so as to establish pin-outs.

Abstract: A simultaneous multiple rotation interface where a series of discs rotate about an eccentric camshaft. Each disc is engaged with the other by a series bearings embedded within each disc. As the camshaft rotates, each disc alternatively engages an outer shell so as to rotate the shell in the same direction as the shaft, albeit at a reduced speed.

Abstract: An apparatus for and method of installing a drive chain (201) uses one or more restraints (101) that do not interfere with drive chain function in an operating engine nor fall off during installation. One or more restraints (101) near a sprocket (207) attached to the crankshaft or other device facilitate installation of one or more drive chains (201) during engine assembly by limiting the movement of the drive chain (201) away from the sprocket (207).

Abstract: The present invention is directed towards a kit for improving the repair of a transmission. The kit contains the components in a fashion that is well organized. Further, while some individual components are stored in the kit, others are preassembled into subassemblies. For example, a subassembly can be preassembled to factory level tolerances. Thus, during the repair, the defective subassembly can be removed and the preassembled replacement can be installed. This saves a great amount of time for the repair. It also makes the refurbished transmission less likely to fail. If the kit contains all of the transmission parts, then it is likely that all or only a portion of the parts will be used during the repair. In the event that all parts are not used, the repair man can place the unused parts back into the kit, along with the used parts, and the kit can be returned for a partial refund or a credit.

Abstract: A process for manufacturing reinforcing parts (14) for leading edges (10) and/or trailing edges (12) of fan blades (1) is described. In particular, this invention relates to the use of the SPF/DB (<<Super Plastic Forming/Diffusion Bonding >>) process for this type of non-hollow part.

Abstract: A manufacturing method of an ink-jet head comprises the steps of: laminating with an adhesive a first plate having a nozzle hole that ejects an ink droplet and a second plate having a communication hole; and applying pressure to the first and second plates in their laminated direction. In the step of laminating, an opening of the nozzle hole is included within an opening of the communication hole on an interface between the first plate and the second plate. In the step of applying pressure, pressure is applied to only a region outside of the opening of the communication hole with respect to a plane parallel to planes of the first and second plate.

Abstract: In a gear product, a plurality of tooth having a crowning formed in a pattern unified to one pattern selected from fourteen patterns comprising four patterns in which a crowning is formed at one of an upper end part A or lower end part B of an upper inclined surface 91, an upper end part C or a lower end part D of a lower inclined surface 92, six patterns in which crownings are formed at two parts thereof and four patterns in which crownings are formed with three parts thereof, are formed at an equal pitch on an outer peripheral surface of a gear part. In a helical gear 9, a combination pattern of an upper part A of an upper side tooth surface 91 and a lower part D of a lower tooth surface 92 or a pair of an upper part C of the lower tooth surface 92 and a lower part D of the upper tooth surface 92 is formed by forging device.

Abstract: The rotor of a braking apparatus is fitted onto a cylindrical positioning portion 19a, and in this condition, fixed to the hub 8a using bolts which are threaded into the screw holes 11a in the rotating flange 10a, and tightened. As the hub 8a rotates, the runout in the radial direction of the outer peripheral surface 20a of the cylindrical positioning portion 19a is controlled up to 15 ?m, to suppress the runout of the vehicle wheel. With this construction, running performance such as riding comfort and diving stability is improved.

Abstract: A shaving aid body for a safety razor is provided. The shaving aid body has one or more contact portions and one or more non-contact portions and has an aperture. The aperture is sized to receive a housing with one or more razor blades disposed within the housing. In some embodiments of the present shaving aid body the contact portion is contiguous with the non-contact portion and together define a convex surface. Some embodiments of the present shaving aid body include a base embedded within the body, the base having one or more features for attaching shaving aid body to the safety razor.

Abstract: A knife is provided having a blade that can be replaced easily without risk to the user, allowing the user to maintain positive control over the blade during replacement. In an exemplary embodiment, the knife includes a lock coupled to a blade holder. The lock extends through apertures of the blade holder to engage the blade. More particularly, the lock can move between an engaged position in which the lock engages a recess of the blade and a disengaged position in which the lock disengages the blade, allowing the blade to be removed. With the lock disengaged, a user can remove the blade while maintaining positive control over the blade.

Abstract: A safety mechanism of a rotational tool includes at least a tool unit, a safety pivot with a long end part and a control device. The tool unit has a fixed shaft with a tail end. The safety pivot is disposed at the shaft with a perimeter having variable distance to the axis itself. The control device controls the safety pivot. The long end part of the safety pivot can resist the tail end of the tool unit from rotating during being disposed to face the fixed shaft.

Abstract: A cheese cutting apparatus with a cutter wire mounted in a taught condition between arms of a frame. The frame has a handle that extends oppositely from the frame arms. A drive is used to adjustably tension the cutting wire to a desired tension. A ratchet or other keeper or locking mechanism allows the tensioned wire to stay at a desired tension adjustment. A version with a thickness guide may be used to provide adjustment of the thickness of cheese slice cut.

Abstract: An eating utensil assembly includes a knife, a fork and a spoon. The knife includes an elongate handle, and grooves are formed in opposite surfaces of the handle. The fork and the spoon each have channel-shaped handles that can be nested over the handle of the knife. Additionally, the channel-shaped handles of the fork and spoon have elongate ribs configured for releasable snapped engagement with the grooves in the handle of the knife.

Abstract: A power driven circular saw includes a base able to slidingly contact a workpiece and a saw unit positioned above the base and supported by the base. The saw unit includes a motor case accommodating an electric motor, a handle extending from the motor case and able to be grasped by an operator, a circular saw blade rotatably driven by the electric motor and positioned to partly extend downward below the lower surface of the base, and a blade case for substantially covering the upper half of the saw blade. A power indication lamp is disposed on one side of the handle and is illuminated when power is supplied to the circular saw.

Abstract: A portable cutting tool includes a saw blade for cutting a workpiece, a cutting tool main body having a motor for driving to rotate the saw blade, and a base for guiding the cutting tool main body along a surface of the workpiece. A cut depth of the saw blade projected from a lower face of the base is made to be able to be adjusted by pivoting the cutting tool main body centering on a support shaft connected to the base. The portable cutting tool is provided with a mechanism for fixing the cut depth at a preset position when the cut depth of the saw blade is gradually increased from a minimum cut depth.

Abstract: A portable cutting tool includes a saw blade for cutting a workpiece, a cutting tool main body having a motor for driving to rotate the saw blade, a base for guiding the cutting tool main body along a surface of the workpiece, and an inclining mechanism for inclining the base by pivoting the base centering on a support shaft of the cutting tool main body. The inclining mechanism includes a first circular arc member provided to be contiguous to at least one of a front end portion and a rear end portion of the base, pivoted along with the base centering on the support shaft and having a first guide hole in a circular arc shape penetrated in a radius direction thereof, and includes a fixing unit for fixing a position of pivoting the base relative to the cutting tool at an arbitrary position the first guide hole.

Abstract: A jig for face frame hinges may include a base and gripping members, wherein the jig may be secured to a frame member or a wall adapted to receive a hinge base plate and the hinge base plate may be abutted with a first hinge abutting edge of the jig. The gripping members may hold the jig in a selected position so that the hinge base may be abutted with the jig while fasteners are engaged through the base and into the frame member, or while holes are pre-drilled and fasteners engaged to mount the hinge base. The proper position may typically be with a second frame member abutting edge of the jig abutted with an adjacent adjoining frame member. Thus, the jig edges form stops for consistently and positively locating hinge bases of a face frame hinge at a predetermined distance from adjacent frame members.

Abstract: A self aligning baseline instrument including a first light assembly operable to generate a first vertical light plane, a second light assembly operable to generate a second vertical light plane at a predetermined angle to the first vertical light plane, a third light assembly operable to generate a first horizontal light plane that is perpendicular to the first and second vertical light planes, and a fourth light assembly operable to generate a vertical plumb light beam that defines a reference point on an underlying surface, the vertical light beam parallel to and coincident to the center axis of the instrument. The first and second vertical light planes and fourth plumb laser beam all intersect together through the center axis of the instrument.

Abstract: The laser targeting system of the present invention eliminates the problem of parallax between the arrow's path and the archer's line of sight. An embodiment is a laser integrated into an arrow such that the beam is projected down the axis of the arrow. Another embodiment is an arrow rest with an integrated laser, which can have an angular adjustment. By having the laser extend the axis of the arrow to the target, the laser spot produced on the target accurately represents where the arrow will hit once released, and eliminates the parallax angle between the archer's line of sight and the arrow's path. The present invention also provides a means for using a single laser beam to project a diffractive pattern onto a target, such as several spots or crosshairs. For advanced visibility of the laser spot, an optical filter or infrared vision optical sensors can be used.

Abstract: An alignment tool of the present invention is provided for aligning a sight for a bow. The alignment tool may comprise a sight reference plate comprising reference markings, and a support mechanism attached to the sight reference plate for releasably attaching the sight reference plate to the bow behind the sight such that the sight may be adjusted relative to the reference markings on the sight reference plate. The support mechanism may comprise a peg for releasable attachment to a stabilizer hole of the bow. The alignment tool may further comprise an additional structure for enabling the adjustment of the nocks, rest, and tiller of the bow.

Abstract: A laser level is provided to generate a laser beam. The laser level has a main body and a removable pedestal. The main body includes a housing, at least one laser generator, a power source and a switch. The pedestal and the main body mount to each other by magnetism, and the pedestal has a spherical or similar slippery upper surface, the main body has a base surface with a corresponding matching shape such that the main body and the pedestal can well inosculate to each other. The main body can be swiveled or moved all around on the pedestal, and laser beams of different angles and directions can be formed thereby.