Abstract: A method and apparatus for measuring and controlling the temperature of a semiconductor device is described. The temperature of a semiconductor device is controlled by measuring the temperature at the semiconductor device and adjusting the temperature by supplying a coolant to the semiconductor device over a coolant line. The amount of coolant which flows to the semiconductor device is controlled by a solenoid switch connected to a valve in the coolant line. A system for measuring and controlling the temperatures of multiple semiconductor devices is also described.

Abstract: A well completion system and associated methods of completing wells provides enhanced convenience in well completions involving well treatment operations. In a described embodiment, a single trip perforating and fracturing/gravel packing method permits a well completion assembly including a well screen and a perforating gun to be installed in a well, the well to be perforated and treated, and the perforating gun to be retrieved from the well in a single trip. Retrieval of the perforating gun permits multiple zone completions in the well without the perforating guns remaining in the well thereafter.

Abstract: A carton for a portable two-component polyurethane foam spray kit has front and rear panels interconnected at their vertically extending ends with carton sides to form a rectangular opening closed at its bottom by bottom flaps. A top cover flap has valve openings allowing the kit user to open and close pressurized “A” and “B” polyurethane cylinders carried in the carton without opening the carton. The carton is carried by a strap secured to the cylinders extending through the top of the carton. A closeable, punch-out front flap formed as part of the front panel allows the kit hoses to be attached to the cylinders and the dispensing gun and stored for shipment and use within the carton between the cylinders and the front panel.

Abstract: An expandable metal product for use in extinguishing fires and in the prevention of or protection against explosions. The product is a continuous sheet of material having discontinuous slits in spaced apart lines parallel to each other but transverse to the longitudinal dimension of the sheet. The invention is also directed to the expanded form of the product, either in sheets which may be used for preventing fires or explosion or in the form of shaped ellipsoids for use in a passive inerting system for fuel tanks, as flame arresters, as anti-explosion barriers, and as shields against mechanical impact.

Abstract: An improved portable fire hydrant that can operate a water main valve disposed within a water main to produce water for fighting a fire by rotating a valve stem coupled to the water main valve includes an extension through which water can flow when the fire hydrant is coupled to the water main. The portable fire hydrant may also include a sealing mechanism disposed on the extension that seals the portable fire hydrant to the water main. A valve operator may also be coupled to the portable fire hydrant and attached to a valve rod that extends down through the extension of the portable fire hydrant. Disposed on the end of the valve rod may be a coupling mechanism for coupling the valve operator to the water main valve. When the portable fire hydrant is attached to the water main, the valve operator of the portable fire hydrant is coupled to the water main valve so that manipulation of the valve operator will cause the water main valve to reposition.

Abstract: The invention discloses a differential connecting rod and draft cable for an agricultural tillage device. The invention consists of a differential connecting rod which is positioned parallel to the center frame. The center frame is connected to the inner wing frame by a universal joint. The universal joint has a spherical bearing and a pivot. The pivot is positioned in a slot. The differential control rod positions the pivot in the slot. An ‘L’-shaped linkage and a spring assembly pivotally support the rod.

Abstract: A method of making a microelectronic assembly includes providing a first microelectronic element and a second microelectronic element with confronting, spaced-apart surfaces defining a space therebetween and providing one or more masses of a fusible conductive material having a melting temperature below about 150° C. in said space, whereby the fusible conductive masses connect the first and second microelectronic elements to one another. Next, a flowable material is introduced between the confronting surfaces of the first and second microelectronic elements and around the one or more fusible conductive masses and the flowable material is then cured to provide a compliant layer disposed between said confronting surfaces and intimately surrounding each fusible conductive mass. The fusible conductive masses are capable of electrically interconnecting the contacts on microelectronic elements confronting one another and/or conducting heat between confronting microelectronic elements.

Abstract: A lead-free solder alloy composition containing Sn, Ag and Bi, with respective concentrations set such that the lead-free solder alloy has a melting temperature lower than a predetermined heat-resistant temperature of a work to be soldered.

Abstract: A method of electrically logging subterranean wells using a conductive fluid includes a miscible combination of an oleaginous fluid, a polar organic solvent, an electrolytic salt, and a carbon dioxide buffer. The electrolytic salt or brine of the salt is present in a concentration sufficient to permit the electrical logging of the subterranean well. The polar organic solvent may be an oil soluble glycol or glycol ether such as ethylene glycol, diethylene glycol, propylene glycol, polypropylene glycol, and the like.

Abstract: A method for operating a device ascending or descending stairs. The device has a plurality of wheels rotatable about axes that are fixed with respect to a cluster arm, where the cluster arm itself is rotated about an axis so that wheels rest on successive stairs. The wheels and cluster arms are controlled according to separate control laws by a controller. Whether the device ascends or descends the stairs is governed by the pitch of the device relative to specified front and rear angles.

Abstract: A tracked vehicle produces a pressure no more than 3 psi on the ground by increasing the number of contact points on the inner surface of the track. The stiffness of the track is also selected to minimize bowing between the idler wheels or rollers. The track is therefore kept substantially straight between the rollers so increase the efficiency associated with transferring power to track. The drive sprocket is positioned above the ground so as to eliminate complexity in the design and yet effectively transmit power to the tracks. Positioning the drive sprocket above ground also prevents derailing of the track. The track is also held in a constant state of tension on the driver sprocket and the roller. This too prevents derailment. The undercarriage of the vehicle includes torsion axles and sealed bearings to provide for a lower maintenance track. Components associated with the undercarriage do not require constant greasing and cleaning of the idler wheels.

Abstract: A radiator mounting structure is disclosed which has a front grill located in front of a radiator and provided with a projection extending toward the radiator. When a hood collides with an obstacle M and is deformed, the deformation causes the front grill to move rearward whereby the radiator is urged rearward of a vehicle body to tilt in the same direction. Thus, the hood is sufficiently deformable to thereby sufficiently alleviate an impact shock to be applied to the obstacle within a limited space.

Abstract: To provide a structure for stably supporting an engine in which front and rear portions of the engine are elastically supported. A drive pulley of a V-belt type transmission is mounted on an end portion of a crank shaft of the engine. A driven pulley of the V-belt type transmission is mounted to an input shaft of a gear box. The engine and the gear box are separately supported on the body side. A crank case of the engine is supported on the body side through a front side elastic mount and a rear side elastic mount disposed at front and rear portions. A ring bushing is fitted in a front side body mounting portion provided on a front portion of the crank case, and a mount rubber is fitted in a rear side body mounting portion. The front side elastic mount of the front side body mounting portion is higher in hardness than the rear side elastic mount of the rear side body mounting portion.

Abstract: An end bearing for a one-way clutch provided with non-through-holes on at least one of its inner peripheral wall and outer peripheral wall. These non-through-holes are arranged on and along plural imaginary lines, for example, straight or curved lines, which extend at a predetermined angle relative to a circumferential direction of the at least one peripheral wall. Also disclosed are a one-way clutch provided with one or two of such end bearings and a manufacturing process of such end bearing.

Abstract: Flat articles to be formed into groups for packaging are advanced in succession at a set tempo toward a transfer station where each article is made to assume a predetermined position in space, standing on edge. Thereafter, the articles are advanced in a direction perpendicular to the position in space and toward a release station by means of a first conveyor equipped with pockets caused to advance at a first linear velocity in such a way that each pocket receives an article and, at predetermined intervals, accelerated to a second velocity for a predetermined duration between the arrival of one article at the transfer station and the arrival of the next article; in this way, one or more pockets remain empty, and groups of articles forming on the conveyor are separated one from the next by the empty pockets.

Abstract: A high speed board feeder for transferring boards from an infeed conveyor onto a secondary conveyor. The boards on the infeed conveyor are transported in an edge to edge configuration against a fixed stop. Hold down mechanism is provided to secure the boards in the desired orientation. A cam member timed to the secondary conveyor has lobes that engage and lift the board that is against the positive stop. The lobes lift the board upward and over the positive stop. The board is forced onto the secondary conveyor by the conveying force of the preceding boards. The board is placed on the secondary conveyor between successive drive lugs. A pivotal stop arm is provided to interrupt the feeding of boards from the infeed conveyor to the secondary conveyor.

Abstract: A conveyor (12) is provided that includes a power mechanism housing (18), a power mechanism (16), a linkage (27), and a connecting bar (10). The power mechanism housing is formed to include a power slot (26). The power mechanism is positioned to lie in the power mechanism housing. The linkage includes a first end coupled to the power mechanism and a second end spaced apart from the first end. One of the linkage and power mechanism is positioned to extend through the power slot. The connecting bar is coupled to the second end of the linkage and configured to support a product at a position wherein the power mechanism is positioned to lie between the power slot formed in the power mechanism housing and the product.

Abstract: A conductive, non-stick coating is provided using a ceramic material which is conductive, flexible and provides a surface which exhibits the property of lubricity. A room or near room temperature manufacturing process produces a coating of titanium nitride on a substrate, where the coating is amorphous if the substrate is a solid material including plastics, composites, metals, magnets, and ceramics, enabling the substrate to bend without damaging the coating. The coating can also be applied as a conformal coating on a variety of substrate shapes, depending upon the application. The coating is bio-compatible and can be applied to a variety of medical devices.

Abstract: A machining solution for removal-machining an object to be machined 103 is introduced to an inside of a machining solution container 101, and a predetermined voltage is applied to between the machining electrode 104 and the object to be machined 103 to cause electrochemical reaction thereby fabricating a part cast mold. Then the machining solution is changed to a machining solution for metal layer formation to effect additional machining on a surface of the cast mold, forming a metal layer. Then the machining solution is changed to a machining solution for part formation to effect additional machining inside the cast mold, forming a part. Finally the machining solution is changed to a machining solution for dissolving metal layer to dissolve the metal layer to taking out the inside part, fabricating a part.

Abstract: Deposition apparatus incorporating either a single or multiple filtered cathodic arc (FCA) source for depositing coatings such as tetrahedral amorphous carbon (TAC); metal oxides; compounds and alloys of such materials onto various types of substrates, such as metals semiconductors, plastics ceramics and glasses. Substrates are moved through the plasma beam(s) of the FCA source(s) and beam scanning increases deposition area. Macroparticles are filtered by a double bend filter duct.

Abstract: A case having exterior walls and, optionally, a closeable flap defining an interior chamber sized to releasibly receive a portable electronic apparatus. Indicating members are carried on an exterior wall of the case for indicating the position of a pushbutton on the electronic device disposed within the interior of the case and permitting actuation of the pushbutton through the exterior wall of the case. The indicating member may be indicia formed on the case simulating the shape of the underlying pushbutton and/or a symbol defining the function of the pushbutton and/or depressions or projections on the exterior wall at the location of each pushbutton on the electronic device.

Abstract: A protective wrap is disclosed that includes a single solution to protecting rigid angled products that require vertical and horizontal strength of interior forms or posts as well as a resilient cushioning property of a foam based product to prevent damage upon impact from mechanical or manual handling. Many applications will benefit from the opportunity to reduce costs through a reduction in packing materials and in downgrading the corrugated construction or eliminate the exterior protection of corrugated boxes. The protective wrap includes at least one layer of a closed or open cell foam secured between laminated layers of paper or, alternatively, laminated to one layer of laminated paper with the foam exposed. The protective wrap is formed to a rigid right angle, a C-channel, or any angled shape.

Abstract: The present invention is a part retainer for housing and retaining various electronic and mechanical parts (27) wherein a retaining unit (2) has an engaging piece (7) that stably stops at both a position at which it protrudes toward the opening of a part housing space (5) and a position at which it withdraws, and which can move between these two positions under a specified or more amount of force, and wherein when protruding toward the opening, the engaging piece (7) prevents the part (27) housed in the housing space (5) from jumping out.

Abstract: A filtering apparatus for removing solid particles from a liquid which includes a pressure-tight cylindrical housing with a filter assembly coaxially mounted in the housing. A liquid inlet is provided at the upper end of the filter housing and is positioned for tangentially injecting the water to be filtered into the interior of the cylindrical housing for imparting a swirling cyclonic movement to the liquid to be filtered. The liquid is filtered to the interior of the filter assembly and then drains from the bottom of the assembly through an outlet. A drain is also provided in the lower end of the housing for draining off accumulated solids and a wash-down apparatus is provided in the upper end of the housing for directing a wash liquid under pressure against the filtering surface for washing the filtering surface down.

Abstract: A fuel filter assembly having a main body defining a cylindrical cavity that can receive a cylindrical fuel filter element. One end of the main body has a nipple that is adapted to be attached to a fuel line. The other end of the main body has an opening that is sized so as to permit the fuel filter element to be positioned within the cylindrical cavity. A compression member is also adapted to be positioned within the opening so as to seal the opening when the fuel filter element is positioned within the cavity of the main body. The compression member includes a second nipple adapted to attach to a fuel line so as to allow fuel to flow through the central cavity. A threaded collar engages with the main body so as to retain the compression member in the opening of the main body. The fuel filter element can therefore be replaced by simply unthreading the collar and removing the compression member and extracting the existing fuel filter.

Abstract: A monolithic ceramic filter having a portion of the partition wall of a honeycomb structure exposed with its end face on an outer wall surface of the structure and increased in thickness as compared to the remaining portion of the partition wall to form a flow resistance relaxing portion is disclosed. The monolithic ceramic filter may also have a groove-shaped recess which is separated via a partition from a liquid supply passage of a honeycomb structure and is in communication with the outside of the structure. The flow resistance of the filtrate within the partition walls may be diminished to enable efficient filtration. The filter is produced simply by extrusion molding. There is no necessity of forming holes for discharging the filtrate in some cases.

Abstract: A hydrocyclone separator comprising a truncated cone-shaped vessel having a tangential fluid stream inlet, a fluid stream outlet, a solid particle collector and a conical insert removably mounted between the truncated cone-shaped vessel and the solid particle collector, said conical insert comprising an erosion resistant material.

Abstract: The invention relates to a lifting device for increasing the performance of a handling apparatus for ISO containers, in particular for increasing the performance of a container bridge in a terminal having automated inward and outward transport of the containers by means of self-propelled transport vehicles, and having at least one container load-lifting means in the form of a spreader and devices for the intermediate positioning of the containers within the handling apparatus for the purpose of fitting or removing the twist locks, and platforms for the personnel occupied in doing this.

Abstract: The improved baby bottle device includes a liquid holding container having a flexible liquid flow tube engaged thereto. A nipple is engaged to the distal end of the liquid flow tube, and a liquid flow control device is disposed within an adaptor that serves to engage the nipple with the liquid flow tube to control the flow of liquid from the bottle to the nipple, such that liquid neither leaks from the nipple when the nipple is disposed below the container nor drains from the nipple when the nipple is disposed above the container. In the preferred embodiment, the liquid flow control device includes a spring loaded check valve. A bottle attachment device, generally including two velcro straps joined at their midpoints is used to attach the bottle device to adjacent structural support members.

Abstract: A closure system for molded plastic containers having a threaded container neck, the closure system comprising a screw cap having internal threading constructed for threaded engagement with the threaded container neck, a gasket, means for retaining the gasket on the screw cap and an abutment surface integrally formed in and extending substantially radially from the container neck for sealably contacting the gasket, wherein the screw cap and the abutment surface are constructed so that downward axial rotation of the screw cap is effective to seal the gasket against the abutment surface.

Abstract: A stopper for sealing containers for pharmaceutical liquids, especially infusion bottles, which stopper has a collar, which projects into the neck of the container; an edge, which rests on the neck of the container; and a puncture area, enclosed by the edge and the collar, the stopper being held on the neck of the container by a protective cap of metal or plastic, characterized in that the puncture area (3) is designed to have such elasticity and flexibility with respect to the edge (9) and the collar (6) that, after the stopper has been inserted into the neck (4) of the container, the puncture area bulges slightly outward; and in that, after the puncture needle (15) of an infusion kit (16) has been inserted into the stopper, the puncture area bulges down into the neck (4) of the container.

Abstract: This mould is intended to form a cap (1) having a cylindrical skirt (3), this skirt being provided with at least one screw thread (4), a top (2) and a tamperproof ring (6) linked to the free end of the skirt by breakable linking elements. It has a movable part or mould top (20), a stripping part or stripper ring (21) and a core (22).

Abstract: Metal oxide films are etched with a metal and an etch liquid containing an acid and a metal penetration control agent.

Abstract: A system is disclosed for carrying out microwave assisted chemical reactions. The system includes a source of microwave radiation, a cavity in communication with the source, a plurality of reaction vessels in the cavity, a pressure line in fluid communication with at least one of the reaction vessels, a pressure transducer in communication with the pressure line, an electrical connector for the transducer in a wall of the cavity, and a shield around the connector that prevents microwaves launched into the cavity from interfering with electrical signals transmitted through the connector.

Abstract: A method of securing a flexible plastics liner (12) within a cargo container (10) uses a plurality of plastic retaining cords (17). Each cord (17) is either attached to the liner (12) at a suitable position (14), or is passed through a loop (43) (FIG. 9) or other receptor (31) (FIG. 8) secured to the liner. Each cord (17) has a self-jamming cleat (23) secured at or adjacent one end, to permit the cord to be coupled to a member (20) provided within the container (10) and then tensioned so as to suspend the liner therewithin. The cord may be passed through a hole (19) in the member (20) or a loop may be formed around the member (30) (FIG. 8) or (41) (FIG. 9).

Abstract: A box, in particular for electrical devices, is built into a wall of any kind by fitting into an opening therein. The box includes a transverse flange which bears in the manner of a guard against the wall to be equipped and, beyond the flange, at least one elastically deformable lug projecting laterally to cooperate with the wall. The elastically deformable lug has two branches with a common root and extending in respective different directions, namely, referred to the insertion direction, a first or front branch extending globally away from the flange and a second or rear branch extending globally towards the flange. Applications include electrical devices, for example infrared radiation receiving cells.

Abstract: A gas cap cover device for an automotive vehicle gas cap includes a shell configured to be disposed over a portion of a gas cap. A connector is supported on the shell and is configured to engage the gas cap and cause the gas cap to rotate when the cover device is rotated. A message-bearing element is supported on the cover device and is configured to display a message formulated to influence a vehicle operator to take some action. In addition, a method for reducing emissions from automotive vehicles includes replacing old leaking gas caps with new gas caps that each include a message advertising a product or service or encouraging participation in activities related to automotive emissions reduction. The message may be included on the message-bearing element of the gas cap cover device.

Abstract: A laundry basket device is disclosed. Specifically, the present invention is a combination laundry basket and laundry bag. The device consists of a standard basket that allows a bag portion to attach thereto, preferably by snap-on rim member. The bag, attached to either the inner or outer rim of the basket, extends vertically from the basket and includes drawstrings that function to securely close the bag, completely covering the contents of the basket. Thus, the device is easy to lift, allows the user to fit more articles of clothing into the basket than is provided in the prior art, and even allows for effective cleaning of the removable bag portion. Finally, the device may include both removably attachable wheels, functioning to further facilitate transport of the entire device, as well as compartments for the storing and transportation of cleaning related items.

Abstract: In an electronic apparatus such as a portable computer comprising an electronic apparatus housing having boss portions, projecting portions are formed at locations where boss portions are to be formed. In addition, a boss separate body is provided which has an engaging hole therein and is to be attached to each of the projecting portions to form the boss portions.

Abstract: A hybrid fiberglass/steel underground storage tank that combines the advantages of a fiberglass tank with those of a steel tank and can be used with various monitoring systems. The tank includes an interior portion made of steel and an exterior portion made of fiberglass. The exterior portion has at least one resin and glass layer, preferably formed of chopped glass mat and 100% solids epoxy resin, coupled to a spacer formed of a three-dimensional woven glass fabric, such as Parabeam®. The interior steel portion and the exterior fiberglass portion are integrally formed to create a single structure. A method of making a hybrid tank is also described.

Abstract: A vacuum waste tank for use in a vacuum drainage system. The tank has a vacuum intake for attachment to a vacuum source and a waste water intake for attachment to a vacuum pipe. The vacuum source creates a negative pressure in the tank and vacuum pipe so that liquid entering the pipe is pulled into the tank. The tank is made of a thermoplastic material having a flexural modulus sufficient to withstand an external pressure loading caused by the vacuum in the tank without buckling.

Abstract: A liquid product carrying plastic film pouch having a straw which is free-floating in the liquid product, is described. The liquid product contained within the inner chamber of the pouch occupies from about 60% to about 90% of the volume of the inner chamber sufficient to permit the side walls of the pouch to be collapsed against one another when the pouch is grasped by the hand of a user person whereby to orient the straw at a desired location. The pouch is made of a multilayer resin film having an inner sealant layer formed of a linear low density ethylene-octene copolymer or very low density ethylene copolymer (octene or other copolymers) such that when the straw punctures the film, the inner sealant layer forms a membrane about the straw which exhibits a self-sealing behavior so as to prevent leakage in the punctured region as liquid is extracted from the pouch through the straw.

Abstract: The present invention relates to a dosing dispenser for the alternating removal of two or more, possibly different solid forms of pharmaceutical substances to be taken, such as for example tablets, film tablets, coated tablets and/or capsules, which differ in their quantitative and/or qualitative composition.

Abstract: The present invention relates to chemical delivery systems and methods for delivery of liquid chemicals. In one embodiment, the present invention relates to systems having multi-reservoir load cell assemblies for delivering chemicals used in the semiconductor industry. In one embodiment, the present invention provides a multi-reservoir load cell assembly, including a controller, a buffer reservoir, a main reservoir, one or more load cells, coupled to the assembly and to the controller, operable to weigh the liquid in the reservoir(s), a plurality of supply lines, each supply line having a valve and connecting one of the supply containers to the main reservoir, and a gas and vacuum sources for withdrawing the liquid from the assembly when demanded by the controller and for refilling the assembly from the supply containers.

Abstract: An improved fluent product dispensing apparatus is disclosed and includes a temperature indicator so that the user may view the temperature of the fluent product components prior to and during dispensing. The apparatus includes one or more supply containers of a reactive component, a dispenser and a conduit for conveying the reactive components to the dispenser. One or more of the supply containers has a temperature indicator mounted to its exterior that is viewable through a package, or carton, that encloses the supply containers. This indicator displays the temperature of the contents of the supply container so that a user can ensure proper dispensing of the reactive components.

Abstract: Finish has bayonet provisions, each including axial catch portions, stop, rib and detent ridge downward from the distal end of the catch portion. Finish also has ramp provisions, each including axial stop and sloping wedge portion extending down from top of axial stop and sloping at 40° from an imaginary circumferential line at the base of the wedge portion. The stops, detent ridges and wedges all provide tactile notification to user as to where lugs on a cooperant cap are vis-a-vis catch portion and top of finish.

Abstract: A surgical stapler is disclosed which includes a first body portion supporting an anvil plate defining a fastener forming surface, and a second body portion configured to releasably mate with the first body portion. A disposable loading unit is removably supported in the second body portion and includes a cartridge defining a plurality of slots, a plurality of surgical fasteners disposed in the slots, a plurality of ejectors positioned adjacent the surgical fasteners, and a wedged actuator configured to enter into and translate through the cartridge to sequentially interact with the ejectors. An elongated actuation member is mounted for longitudinal movement within the second body portion and is releasably engagable with the wedged actuator, whereby longitudinal movement of the actuation member causes the wedged actuator to interact with the ejectors, driving the surgical fasteners from the cartridge to be formed against the anvil plate.

Abstract: A pneumatic fastener inserter and hopper for the same is disclosed for use in inserting fasteners into material being secured. The hopper comprises a rotatable drum which tumbles the fasteners therein into position so that the shanks thereof protrude outwardly between spaced-apart bars. The fasteners are discharged from a discharge opening formed in the hopper and are delivered to a magazine which is in communication with an entrapment apparatus which feeds the fasteners to a feed tube under pressure. The air pressure in the feed tube delivers the individual fasteners to the inserter with the fastener being positioned between pivotally movable head fingers which open to receive the fastener to position the same for subsequent insertion and which pivot to enable the fastener to be driven outwardly therefrom by a piston rod so that the fastener is driven into and through the material being secured.

Abstract: A wire bonding apparatus comprising: a spool motor rotates a spool around which a wire is wound, a tension-applying device that is disposed beneath the spool, a wire pay-out sensor disposed away from a gas-jet-out side of the tension-applying device so as to sense that the supply of the wire is insufficient, a wire-end detection sensor disposed on the gas-jet-out side of the tension-applying device so as to sense that the supply of the wire from the spool has stopped, and a control device controls so that the spool motor is rotated by a predetermined fixed amount when the wire is sensed by the wire pay-out sensor.

Abstract: A wire bonding apparatus equipped with a capillary through which a wire is passed, a torch electrode which is installed in a substantially horizontally movable manner so as to be positioned beneath the capillary, and a torch electrode driver which drives the torch electrode, in which the torch electrode is directly coupled to an output shaft of a pulse motor which is driven by a high-resolution angle control circuit, so that a resolution of the pulse motor obtained by the high-resolution angle control circuit is 30,000 parts per revolution or greater.