Abstract: The invention comprises a method and apparatus for equal channel angular extrusion (ECAE) of flat billets to control material structure and properties. The improvements of the method include the special systems of billet orientations, billet lubrication, billet ejection from dies, and a press/die control system those eliminate surface cracks, flashes and billet reshaping or deburring between passes. Therefore, multi-pass ECAE becomes a cost-effective industrial operation and may be applied to large billets.

Abstract: A flanged housing member is formed using a forming method and a forming device from a forming material having a pre-flanged forming portion 2 is disposed at one end of a trunk portion 1. The entire external surface of the flanged housing member can be ironed with a sufficient degree of precision without mechanical machining. The forming material is held on one of a first die having an external forming surface and a second die having an internal forming surface. A sizing process is performed to at least form an internal surface of the trunk portion using the first and second dies. The pre-flanged forming portion is sandwiched and pressed between the first die and a flange-forming die to form a flange portion on the end of the trunk portion.

Abstract: In order to manufacture a pipe member there is provided a metal sheet having a first end and a second end extending in a first direction corresponding to an axial direction of the pipe member. First convex portions and first concave portions are alternately formed on the first end of the metal sheet. Second convex portions and second concave portions are alternately formed on the second end of the metal sheet. Each of the first end and the second end of the metal sheet Is curved so as to have an arcuate cross section as viewed in the first direction. A center part of the metal sheet relative to a second direction corresponding to a circumferential direction of the pipe member is curved so as to have an arcuate cross section as viewed in the first direction. The first convex portions and the second convex portions are press-fitted respectively into the second concave portions and the first concave portions in a third direction corresponding to a radial direction of the pipe member.

Abstract: Dies that are attached to a die plate can be transferred to a substrate. An actuator can be used to cause a die to be released from the die plate and to come into contact with the substrate. For example, the die may cover a corresponding hole in the die plate. The actuator can move a pin into the hole in the die plate, thereby pushing the die from the die plate. The actuator may be actuated by an electromagnetic stimulus. For instance, a solenoid having windings around a tubular core may provide the electromagnetic stimulus to the actuator. Current may be provided to the windings of the solenoid to generate the electromagnetic stimulus that actuates the actuator. The actuator may be provided in the tubular core of the solenoid.

Abstract: The calibration tool is provided for use with a detector, such as a detector for detecting trace amounts of one or more substances of interest. The calibration tool includes a body with at least one reservoir for retaining the calibration solution therein. A nib projects from the body and communicates with the reservoir. The nib can be wiped across a detection surface and the detection surface then may be presented to a detector. The detector then can be calibrated for the particular substance of interest in the calibration solution. The calibration tool may include plural reservoirs isolated from one another and plural nibs for applying the calibration solution to a detection surface.

Abstract: A flow cell for measuring the color properties of a liquid flowing therethrough using interrogating radiation at a predetermined wavelength has a thin partition mounted in spaced relationship between both a window and a base of the cell. The partition and the window define an air cavity therebetween. The spacing between the partition and the window is such that evanescent coupling of radiation reflected from the liquid into the material of the window is prevented. The cell has a pressurized fluid inflow channel and a pressurized fluid outflow channel formed therein. Each of the inflow and outflow channels communicates with the air cavity. The inflow and outflow channels are sized to pass a pressurized fluid, such as pressurized air, through the air cavity such that, in use, the spaced relationship between the partition and the window is maintained by pressurized fluid in the air cavity.

Abstract: A timing calibration system for an adjustable delay time of a delay module for an electronic circuit is provided. The system includes a control delay module including at least one calibration delay module, the control delay module having a second delay time. The system also includes a timing module associated with the control delay module, a comparison module associated with the timing module and an adjustment module for the delay module. The timing module measures the second delay time, the comparison module compares the second delay time with a desired delay time and produces a comparison result and the adjustment module calibrates the adjustable delay time utilizing the comparison result.

Abstract: A humidity sensor includes: a substrate; a pair of electrodes on the substrate; a humidity sensitive member between the electrodes having a capacitance changeable in accordance with humidity; an output element connecting to the electrodes in order to detect a capacitance of the humidity sensitive member and outputting a signal corresponding to the capacitance; and a setting member for setting a maximum amount of moisture in the humidity sensitive member to be a standard maximum amount of moisture. The humidity sensitive member is capable of absorbing a moisture up to the maximum amount of moisture. The setting member includes at least one of an element for reducing the maximum amount of moisture and an element for increasing the maximum amount of moisture.

Abstract: A sensor system for detecting the presence of a target analyte. The system comprises a first conductor, a second conductor, and a sensor film. The sensor film is positioned between the first conductor and the second conductor. The sensor film includes a crosslinked siloxane polymer comprising a monomer having a hydrocarbon side group. The sensor film has an absorptive affinity for the target analyte. The electrical capacitance of the sensor system changes upon absorption of the target analyte by the sensor film.

Abstract: A gas sensor having a housing, a first insulation porcelain, a metal sealing member interposed between a seat surface of the housing and a contacting surface of the first insulation porcelain. The metal sealing member is made of a Fe-based alloy of containing 10 wt % or less Cr.

Abstract: The present invention includes an apparatus, method and centrifuge permeameter system that includes a hydraulic permeameter adapted for use in a centrifuge; and an automated data acquisition system, wherein the centrifuge permeameter non-destructively determines one or more soil characteristics from a sample of granular material such as soil, rock, and concrete when centrifuged.

Abstract: The viscometer provides a viscosity value (X?) which represents the viscosity of a fluid flowing in a pipe connected thereto. It comprises a vibratory transducer with at least one flow tube for conducting the fluid, which communicates with the pipe. Driven by an excitation assembly, the flow tube is vibrated so that friction forces are produced in the fluid. The viscometer further includes meter electronics which feed an excitation current (iexc) into the excitation assembly. By means of the meter electronics, a first internal intermediate value (X1) is formed, which corresponds with the excitation current (iexc) and thus represents the friction forces acting in the fluid. According to the invention, a second internal intermediate value (X2), representing inhomogeneities in the fluid, is generated in the meter electronics, which then determine the viscosity value (X?) using the two intermediate values (X1, X2).

Abstract: The present invention includes a device and method for more particularly evaluating the compaction of soil by automating the use of a prior art dynamic cone penetrometer such that user error and error caused by field conditions are eliminated. Recordation of penetrometer data previously not recorded is made more precise by the present invention such that standardized measurement results. The device further includes means for facilitating the determination of compaction of soils through keyhole openings and a means for automating the collection and processing of the generated compaction data.

Abstract: A wheel balancer includes a microprocessor configured to receive data associated with a vehicle wheel rim and tire assembly imbalance from at least one sensor, and to identify optimal correction weight plane locations, as well as to present the operator with the imbalance correction weight arrangement. The microprocessor is further configured to control a projection display system disposed to project a two-dimensional image onto a surface of the vehicle wheel rim and tire assembly, to facilitate completion of a wheel imbalance correction procedure.

Abstract: The invention relates to a method of manufacturing an electrical suction unit (11) for use in a vacuum cleaner. The suction unit comprises a turbine unit (13) and an electrical motor (15) with a rotor (19) and a stator (17). The turbine unit is attached to the rotor and forms, together with the rotor, a rotatable part (25) of the suction unit, which is rotatable about an axis of rotation (23). According to the method, an amount of material (33) is removed from the rotor (19?) and an amount of material (35) is removed from the turbine unit (13?) to torque-balance the rotatable part (25?) of the suction unit.In this manner, the amount of material (33) to be removed from the rotor (19?) to torque-balance the rotatable part (25?) is considerably reduced, so that the adverse influence of the removal of the material (33) from the rotor (19?) on the performance of the electrical motor (15) is limited.

Abstract: The method for determining the vertical acceleration is based on the determination of the pressures difference in particular points, wherein the pressures created by the vertical acceleration are considered to be different and, the ones created by the cross accelerations are considered to be equal. According to the method there are provided the miniature devices intended for realizing the said solution. The two of these devices comprise two-vessel and one-vessel ones. One of the two-vessel devices and one-vessel device have only one sensitive element of pressure, which is considered to eliminate any harmful influence of the parameters spread of the sensitive elements of pressure. The pressure sensors of the said devices are to be switched to the differential scheme, at the output thereof the signal of the vertical acceleration is taken. The technical solution in hand is expected to eliminate any harmful influence of the disturbing factors, particularly, cross accelerations.

Abstract: The present invention relates to an electric device, which comprises: a micro inertial sensing module, for detecting a motion of the electric device with respect to the degree of freedom of six axes and thus issuing a sensing signal basing on the detection; a sensing signal processor, for receiving and processing the sensing signal to form a system processing signal; and a display; wherein the displacements and rotations of the motion detection-enabled electric device is sensed and measured by the micro inertial sensing module for enabling the micro inertial sensing module to generate sensing signals corresponding thereto and thus sending the same to the sensing signal processor for processing, and then the result of the processing is adopted as the input of the motion detection-enabled electric device for causing the motion detection-enabled electric device to response in the display accordingly.

Abstract: Four sensor units (SUA1 to SUA4) are disposed symmetrically about a point, on both top and bottom and left and right centering around one point of a support (15e). Furthermore, four sensor units (SUA1 to SUA4) are designed so that all the components are fully in tuning-fork structure. Drive frames (5, 5) of the sensor units (SUA1, SUA2) disposed adjacent to each other in a first direction (Y) are vibrated in mutually inverted phases, and drive frames of the other sensor units (SUA3, SUA4) disposed adjacent to each other in a second direction (X) are vibrated in mutually inverted phases as well. Moreover, the drive frames of the sensor units (SUA1, SUA2) and the drive frames of the other sensor units (SUA3, SUA4) are operated in synchronization in the state in which phases are shifted by 90 degrees. Whereby, it is possible to reduce or prevent vibration coupling in the driving direction and in the detection direction, and the leakage (loss) of excitation energy and Coriolis force.

Abstract: The present invention relates to a wireless inertial input device of low power consumption. The wireless inertial input device uses an inertial sensing cell, being arranged therein, to generate a sensing signal to be received and processed by a processor for enabling the processor to generate a response signal to be applied by an electric device, whereas the inertial sensing cell is communicating with the processor wirelessly as the processor is not physically connected to the inertial sensing cell and is electrically connected to the electric device. By separating the high power consuming processor from the wireless inertial input device as the sensing signal generated by the inertial sensing cell arranged inside the wireless inertial input device is transmitted wirelessly to the processor to be processed, the power consumption of the wireless inertial input device is reduced and thus the duration of batteries used thereby can be increased.

Abstract: Many sensors could be used in a passive wireless mode. These include RLC, acoustic wave and magneto-elastic sensors. These types of sensors are designed to exhibit a change in fundamental frequency when exposed to environmental factors such as temperature, pressure, or chemicals. An interrogation circuit can inductively couple to the sensor and measure the change in fundamental frequency. The change can be used to measure the environmental factor. Sensor sensitivity and inductive coupling efficiency can be competing design constraints. A driver, electrically connected to the sensor and inductively coupled to the interrogation circuit, can relax the constraints. The driver, however, can introduce noise into the sensor. The sensor can be shielded using physical and geometric techniques to reduce the noise.

Abstract: The present invention relates to methods, systems, and instruments (10) for monitoring, detecting or measuring one or more acoustic emissions of a foam. The detected emission(s) may then be used to generate a response, such as one to control an associated process.

Abstract: Ultrasonic waveguides having improved velocity gain are disclosed for use in ultrasonic medical devices. Specifically, the ultrasonic waveguides comprises a first material having a higher acoustic impedance and a second material having a lower acoustic impedance.

Abstract: A structure subjected to stresses that can lead to structural failure. The structure includes first and second conductive layers and an intermediate layer therebetween formed of a dielectric, semiconductive, or resistive material, such that the first, second, and intermediate layers form in combination an electrical element, namely, a capacitive or resistive element. The electrical element is located within the structure so as to be physically responsive to transitory and permanent distortions of the structure resulting from extrinsic and intrinsic sources.

Abstract: A method of determining a web tension of at least one second web tension section in a product web having at least two web tension sections includes determining a web tension on at least one first web tension section, and determining a web tension of the at least one second web tension section on the basis of the web tension determined on the at least one first web tension section.

Abstract: Particle collection, transport, and detection systems are disclosed. The systems are uniquely adapted for collecting or concentrating particles from a flowing medium and then transporting the collected particles to a desired location or for subsequent analysis. Electrostatic traveling wave grids can be used in conjunction with sample concentrators.

Abstract: A real-time particulate matter measuring system includes a hot diluter for receiving and diluting aerosol. An evaporation unit receives the diluted aerosol. A cold diluter receives and dilutes the output flow from the evaporation unit. A condensation particle counter receives the diluted output flow and measures the particle number concentration. An integrated device also receives the diluted output flow. The integrated device measures at least one of particle diameter concentration and particle surface area. The integrated device also measures mass concentration.

Abstract: An environmental chamber for use with an environmental contamination testing system provides airborne contaminants effects for electronic systems. The environmental chamber includes a platform for supporting the plurality of electronic systems and receiving the settled amounts of the airborne contaminants. An airborne contaminants contaminant delivery system delivers airborne contaminants within the environmental chamber for directing the airborne contaminants in the direction of the platform and the plurality of electronic systems. A controller cabinet monitors and controls the environment of the environmental chamber.

Abstract: A performance testing apparatus for a heat pipe includes an immovable portion having a cooling structure defined therein for cooling the heat pipe requiring test. A movable portion is capable of moving relative to the immovable portion and has a cooling structure defined therein for cooling the heat pipe. A receiving structure is located between the immovable portion and the movable portion for receiving the heat pipe therein. A positioning structure extends from at least one of the immovable portion and the movable portion for avoiding the movable portion from deviating from the immovable portion during movement of the movable portion relative the immovable portion to ensure the receiving structure being capable of precisely receiving the heat pipe. At least a temperature sensor is attached to at least one of the immovable portion and the movable portion for detecting temperature of the heat pipe.

Abstract: A performance testing apparatus for a heat pipe includes an immovable portion having a cooling structure defined therein for cooling the heat pipe. A movable portion is capable of moving relative to the immovable portion and has a cooling structure defined therein. A receiving structure is defined between the immovable portion and the movable portion for receiving the heat pipe. A positioning structure extends from at least one of the immovable portion and the movable portion to ensure that the receiving structure is capable of precisely receiving the heat pipe therein. Temperature sensors are attached to the immovable portion and the movable portion to detect a temperature of the heat pipe. An enclosure encloses the immovable portion and the movable portions therein, and defines a space for movement of the movable portion relative to the immovable portion.

Abstract: A jig for a durability test of a joystick switch for a vehicle includes a supporting member and an operating part comprises (a) an operating part having at least two artificial fingers configured to be able to grasp and push the joystick switch in a plurality of directions and being disposed to be opposite to each other, and (b) a supporting member to support the operating part.

Abstract: A test dummy apparatus is disclosed that is shaped in the form of a human body with separate parts that can be each filled with fluid whereby the apparatus will have the size, weight and weight distribution of a human body. The connections of the parts allow for movement of the pieces such that the apparatus can be adjusted into multiple body positions (e.g., standing, sitting, crouching, etc). The parts can be assembled, disassembled and reassembled to allow for movement of the apparatus in pieces.

Abstract: An electromagnetic gyro comprises a gyro body which defines a resonance circuit and at least one LED; and a base forming a self-excitation multivibrator; wherein said resonance circuit creates an alternating current induced by a variation magnetic field founded by said self-excitation multivibrator. In accordance with the present invention the electricity energy has been passed by the coupling among the windings to make the rotating gyro body light, without adding a battery therein. The circuit construction is also simple. These LEDs have high luminance through different combination of colors of which can achieve wonderful effect when the gyro body rotates. As a further improvement, there adds at least one LED in the base thereby having a function of illumination.

Abstract: A two-speed transfer case includes an input shaft that is driven by a vehicle engine, a first output shaft that is coupled to a rear axle, and a second output shaft that is coupled to a front axle. The transfer case also includes a high range gear set and a low range gear set. The high range gear set includes a first gear supported on the input shaft and a second gear supported on the first output shaft. The low range gear set includes a third gear supported on the input shaft and a fourth gear supported on the second output shaft. A shifting mechanism cooperates with the second and fourth gears and the first and second output shafts to provide a plurality of operational output configurations. The shifting mechanism is integrated into a housing that substantially encloses the input shaft and the first and second output shafts.

Abstract: A transmission is provided having a differential gear set with three input torque-transmitting mechanisms, such as friction clutches, to achieve torque flow through the differential gear set to a countershaft gearing arrangement. The transmission utilizes power-on shifts. By utilizing the torque ratio of the differential gear set, additional forward ratios are available with good step progression, reducing the number of countershaft gear sets and synchronizers necessary in comparison to a dual-clutch transmission providing the same number of ratios. A shorter axial length is thus attainable.

Abstract: The present invention relates to a method for the control of a gearbox arrangement with which a torque generated by an engine is transmitted to a drive axle of a vehicle. The gearbox arrangement includes a power shift gearbox and a drive clutch. During a shift process of the power shift gearbox, the drive clutch is disengaged at least partially so that a remaining torque is transmitted from the engine to the drive axle at an almost unchanged operating condition of the engine.

Abstract: In a method for shifting gears of an automatic transmission, in which a shift finger can be moved by a selective actuator along a selective path into various selective positions, out of which the shift finger can be moved via a shift actuator into different shift paths and the shift finger engages a gear each when it is moved into an end region of a shift path, the selective actuator is activated for verifying the correct function of the selective actuator and its connection to the shift finger prior to each engagement of a new gear within a shift path such that by approaching the edge of the shift gear the respective shift path is detected.

Abstract: The present invention discloses and claims a torque transfer mechanism. The torque transfer mechanism connects an input shaft to an output shaft to transmit rotation and torque in either direction from the input shaft to the output shaft. The torque transfer mechanism also inhibits the transmission of rotation and torque in at least one direction from the output shaft to the input shaft. In alternate embodiments, the torque transfer mechanism may transmit rotation and torque in one direction from the output shaft to the input shaft. In still further embodiments, the torque transfer mechanism may inhibit the transmission of rotation and torque in either direction from the output shaft to the input shaft.

Abstract: There is provided a gearbox for a food processing machine (10) comprising a first rotatable shaft; a second rotatable shaft; mountable to said first rotatable shaft, a rotary pulley (20) for receiving torque drive; mountable to said first rotatable shaft, first gear (20B); and mountable to said second rotatable shaft (10A), a second gear (10), wherein said first and second gears (20B, 10) are in meshed relationship thereby enabling geared transfer of torque from said first rotatable shaft to said second rotatable shaft (10A), and said second rotatable shaft is provided with a mounting for direct receipt of a primary food processing tool.

Abstract: An orifice cover is described that is selectively disposed within an orifice having a structural member adapted to extend through the orifice. The orifice includes an inner peripheral extent and both an inner surface and an outer surface. The orifice cover further includes an elastomeric main body having an outer periphery. The outer periphery selectively engages the inner peripheral extent of the orifice and the outer periphery includes a securing mechanism for securing the orifice cover to the orifice.

Abstract: A connecting device for the pivotal and loss-prevention joining of an actuating lever (1) and a support element (6) of a valve operating mechanism of a combustion engine. The actuating lever (1) has, in a supporting section (3), a spherical cap-shaped cavity (5) inside of which the spherical end (7) of the supporting element (6) may be placed. A recess and/or undercut (8) is formed underneath the spherical end (7) in the supporting element (6). The actuating lever (1) has, in the supporting section (3), a spherical upper surface (4) above the spherical cap-shaped cavity (5). A securing element (9) joins the actuating lever (1) and the supporting element (6) to one another. This securing element (9) has a U-shaped cross-sectional shape with an upper and a lower limb (10, 11) that are joined to one another via a joining section (12).

Abstract: A system of oil lines for a transmission includes a first transmission case oil line connected to an oil port; a rear cover oil line connected to the first transmission case oil line, and to rear transfer bearings via a second transmission case oil line; an internal oil line receiving oil from the rear cover oil line; a branched oil line connected to the second transmission case oil line and to an inclined oil line; a third transmission case oil line receiving oil from the inclined oil line and connected to rear differential bearings via a fourth transmission case oil line; a first converter housing oil line connecting the third transmission case oil line to front transfer bearings; a second converter housing oil line transmitting oil to front differential bearings; and a connecting pipe connecting the first converter housing oil line to the second converter housing oil line.

Abstract: A cermet composition represented by the formula (PQ)(RS)X comprising: a ceramic phase (PQ), a binder phase (RS) and X wherein X is at least one member selected from the group consisting of an oxide dispersoid E, an intermetallic compound F and a derivative compound G wherein said ceramic phase (PQ) is dispersed in the binder phase (RS) as particles of diameter in the range of about 0.5 to 3000 microns, and said X is dispersed in the binder phase (RS) as particles in the size range of about 1 nm to 400 nm.

Abstract: A semiconductor device includes a heat source, a heat-dissipating component for dissipating heat generated by the heat source, and thermal interface material filled in a space formed between the heat source and the heat-dissipating component. The thermal interface material includes 50% to 90% in weight of at least one metal powders having an average particle size of 2 to 20 ?m and selected from the group consisting of spherical tin powders and powders of memory alloy, and 5% to 15% in weight of silicone oil having a viscosity from 50 tO 50,000 cs at 25° C.

Abstract: Nanometer sized particles containing titanium and platinum are prepared by a sonochemical process. Compounds of the metals are dissolved, suspended, or diluted in a low vapor pressure liquid medium, preferably at a sub-ambient temperature. A reducing gas is bubbled through the liquid as it is subjected to cavitation to affect the reductive decomposition of the metal compounds. Titanium and platinum are co-precipitated in very small particles.

Abstract: A method for producing Ti or Ti alloys through reduction by Ca, including: a reduction step of holding a molten salt, containing CaCl2 and having Ca dissolved therein, in a reactor vessel 1, and reacting a metallic chloride containing TiCl4 with Ca in said salt to generate particles of Ti or Ti alloys in said salt; and a separation step of separating particles of Ti or Ti alloys, generated in said salt, from said salt. An electrolysis step 8, in which CaCl2 discharged outside the reactor vessel 1 is electrolyzed into Ca and Cl2, and the generated Ca is used for the generation reaction of Ti or Ti alloys in the reactor vessel 1, is preferably added. In the electrolysis step 8, an alloy electrode made of a molten Ca alloy, if applied for a cathode, is effective in enhancing the electricity efficiency, and also can be effectively utilized as a carrier medium of Ca for raising a Ca concentration of molten salt. By this method, high-purity Ti metals can be efficiently and economically produced.

Abstract: A method for recovering at least one platinum group metal (PGM) species from a feed product selected from the group consisting of chromite ore, chromite ore concentrate and PGM concentrate comprising the steps of: mixing the feed with at least one salt so as to produce a mixture, whereby the concentration of salt in the mixture is sufficient to convert at least one PGM species into a corresponding PGM chloride salt; and contacting the mixture with gaseous chlorine and CO at a temperature between about 240° C. and 800° C. to induce the conversion of at least one species of PGM into a corresponding PGM chloride salt, whereby said chloride salt of at least one PGM species can be recovered.

Abstract: A process for recovering nickel from a solid feed material containing nickel in the form of millerite is disclosed. The process includes treating a slurry of the solid feed material and a process solution so that all or at least part of the nickel in the millerite forms an acid leachable solid form. The process also includes pressure acid leaching the treated slurry and leaching nickel in solids in the slurry into solution. Finally, the process includes recovering nickel from solution.

Abstract: Methods of and systems for automated color control are provided. These methods and systems are suitable for use in various oxidation processes for the coloration of heat treated steel, for example razor blade steel. A feedback loop (closed loop control) is established, including the steps of measuring color, comparing the measured color to a target color and quantifying the difference there-between, and, if the difference exceeds a predetermined threshold, adjusting a color adjustment parameter, e.g., the airflow to the oxidation zone, so that the measured and target colors are equivalent or within a predetermined variance.

Abstract: An orthopedically engineered handle for hammer is disclosed, which comprises a substantially straight front handle body section, a front coupling tip straightly forwardly extending from the front end of the front handle body section, and a double-curved rear handle body section backwardly extending from the rear end of the front handle body section and smoothly curving upwards at a climbing angle about 5°˜7° and then smoothly curving downwards at a descending angle about 5°˜7°.

Abstract: A multifunction tool according to the present disclosure is formed in a generally “Y” shape to provide leverage and control when the tools included in the first arm or the second arm are employed. The main stem includes a ratchet assembly for a male drive element. The male drive element is specifically sized to drive a wobble socket as well as function as a bearing press for skateboard wheels. The wobble socket has offset pivot points to suitably engage the deck fasteners securing the trucks. The first and second arms each include sockets specifically sized for skateboard fasteners. Each arm socket extends from it's respective arm a suitable distance to engage wheel nuts without interference. The intersection of the first and second arms may also include a recess for engaging a separate drive tool for philips head screws and or other suitable recessed drive fasteners such as allen, hex, torx or other fasteners.