Abstract: What is disclosed is a cooling unit with a sealing cap, for high speed optical fiber drawing in an optical fiber drawing process. The cooling unit includes: a cooling body through which the optical fiber drawn in high speed passes and in which heat exchange is performed by provided helium gas; and a sealing cap mounted on upper and lower ends of the cooling body, wherein at least more than one supplying member of ring type are provided in an inside of the sealing cap more than one time along progress direction of the optical fiber, for providing flow rate of reverse direction opposite to external air introduced along the drawing optical fiber so that the influence of the external air is minimized.

Abstract: A locking mechanism having a box with a hinged lid in which the box and hinged lid form a circular aperture between them when the lid is closed. The box has an anchoring flange attached which is used to anchor the box to the chassis of a vehicle. The box is anchored and the lid then closed with the aperture around the end of the bar which must be lifted before the third seat can be removed from a sport utility vehicle. Integral with the box is a locking mechanism consisting of a curved bar which holds the lid shut and a turning lock stop. The curved bar removably penetrates the box and has a groove cut across the portion of the bar which fits through the box. The turning lock stop can be moved into a position in which it prevents turning or removal of the curved bar. The turning lock stop can be turned only by means of a key or secret combination.

Abstract: A hasp enclosure for protecting an eye of a hasp and receiving a lock. The hasp enclosure includes a cover having an opening which extends into an interior, eye receiving chamber. An aperture is defined through the cover which intersects the interior, eye receiving chamber in a location which is aligned with the eye so that the lock can be be inserted through the aperture in the cover and the eye. The cover may be a separate piece or may be connected to the hasp face plate over the hasp eye receiving slot.

Abstract: There is provided a handle assembly of thin type which permits through a computerized personal management system a plurality of persons to have easily access to instruments in a box with the handle assembly. A predetermined combination of marks for unlocking can be detected in case of necessity.

Abstract: The invention relates to an anti-theft device for cycles comprising one or more frame tubes, and a pedal crank housing attached thereto, characterized in that a through drilling is arranged in the middle of the pedal crankshaft (5) as well as of the fixing screws (8). In the mid-region of the pedal crankshaft (5) is a recess (11) in which a lock housing (12) with a cylinder lock (13) is arranged. The key (14) of the cylinder lock (13) axially extends through the fixing screw (8)closest tothe cylinder lock. On the opposing front face of the cylinder lock (13) an eccentric pin (16) is arranged which co-operates with the front face of a slider (17), displaceably arranged in the recess (11), by means of an eccentric pin guide (18).

Abstract: The present invention relates to a lock cylinder assembly (10) comprising a cylinder housing (12); a cylinder (14); a first electromagnetic coil (48); a first locking member (52); and a key. The cylinder (14) is rotatable in said cylinder housing (12) and the first locking member (52) is urged by a first magnetic field towards a locked position in which rotation of the cylinder (14) is prevented.

Abstract: The invention relates to an actuating device for a lock, especially a lock on the parcel shelf of a motor vehicle, comprising an actuating element (30) and a transmission element (20) which can be moved in a linear manner (20) and on which a catch device (21) is disposed, whereby the movement thereof impinges upon a trigger element (12) which interacts with an actuating rod assembly. The transmission element (20) is embodied as an axially displaceable shaft (20) which can be rotated by means of a central locking device (11) and is provided with an eccentrically arranged extension (22). One area of the actuating element (30) can be rotated by means of a locking cylinder (31) and is provided with an eccentrically arranged extension (32). The front faces (23, 32) of the extensions (22, 32) face each other and overlap in at least one rotational position but not in all relative rotational positions of the extensions (22, 32).

Abstract: A removable core lock and key device comprises a cylinder housing (10) and a core (20), which is accommodated in the cylinder housing. An adapter (30) is operatively connected to a bolt (32). The core and the adapter are provided with means of connection (20d, 30d), such as a bayonet joint, so as to selectively prevent withdrawal of the core from the housing. Key actuated engagement elements (28, 30c) are arranged to selectively allow mutual rotation of the adapter and the core so as to disengage the means of connection, thereby allowing withdrawal of the core. A simple yet reliable removable core is thereby provided.

Abstract: Disclosed is a method of disinfecting and stabilizing organic wastes wherein organic waste is intimately mixed with one or more mineral by-products to produce a mixture having a pH of less than about 9. The mixture is heated and dried to produce a stable, granular bio-mineral product that may be used for example, as a fertilizer, soil amendment or as a soil substitute. In some embodiments, at least a portion of the heat for heating and/or drying the mixture is provided by residual heat in at least one of the one or more mineral by-products. Also provided are stable, granular bio-mineral products formed by the methods of the present invention and fertilizers, soil amendments, and soil substitutes that include these stable, granular bio-mineral products. Further provided are systems for disinfecting and stabilizing organic waste, and systems for making a stable, granular bio-mineral product.

Abstract: Apparatus for forming an arch is architectural panels including a drive section and an arching section. Each of the drive section and arching section have at least one roller and cooperating follower with the rollers being adapted to engage the underside of the panel with a groove in the followers accepting side legs of the panel. In a preferred embodiment, two cooperating followers float along a common shaft in association with each roller.

Abstract: A process for improving the adhesion of a lubricant to, and the distribution on, the surface of a strip of aluminum or aluminum alloy which is cold rolled between two work rolls, said cold rolled strip being coated with lubricant for the purpose of subsequent shape-forming, is such that the surface of at least one work roll exhibits a roughness pattern (10), which is comprised of at least two line patterns (14,18) that cross each other, whereby each of these line patterns is characterised by a plurality of parallel rills (12,16).

Abstract: For providing a thin square wire being used for a coil in low cost and for forming a square hole for press-forming a square wire accurately and easily, a square wire manufacturing machine comprises a four rollers 1-4 being disposed in a shape of swastika to be crossed mutually for forming a square hole 5 and a position adjusting unit for adjusting disposed positions of the four rollers. A wedge-slide-type position adjusting mechanism is applied to the position adjusting unit. The wedge-slide-type position adjusting mechanism fine-adjusts the disposed position of respective rollers 1-4 to move each roller 1-4 in a direction of an axis thereof and in a direction perpendicular to the axis thereof.

Abstract: A rolling mill line for rolling wire and light sections in which the rolling stands of the prerolling and intermediate rolling stages have alternating horizontal and vertical grooved roll pairs. The oval grooves of rolls of one pair are converted by round section grooves of a pair immediately downstream thereof and axially spaced therefrom into a circular section and one or the other of the two grooves can by axial transverse shifting, be brought into or out of the rolling line.

Abstract: A method for manufacturing a heat transfer member comprises the step of subjecting material to be worked, which is made of a metallic thin sheet, to a press forming utilizing upper and lower molds of a press-forming devices to form the material to be worked into a shape having prescribed irregularities, thereby preparing a heat transfer member for a heat exchanger. An elongated material is used as the material to be worked. A press-forming device is provided with molds each having a length shorter than the elongated material to be worked.

Abstract: A split die includes a plurality of die pieces which can be assembled into a die nib. The die nib defines a central wire forming passage which has a cross section of a substantially rectangular shape or a square. The cross section of the wire forming passage is progressively smaller such that the wire forming passage has a predetermined approach angle. Each of the die pieces has a passage segment of a generally triangular shape to partially define the wire forming passage. The die piece has a pair of side lines each passing a point on an axial center line of the wire forming passage.

Abstract: The vehicle metal pulling apparatus may be mounted on a forklift for use of the hydraulic system to pull metal parts. A cross bar may be attached to the main vertical beam element of the forklift. A push bar may be attached to the cross bar to project forwardly from the forklift for placement against a vehicle to brace the vehicle while pulling on parts. A cable that may be attached at one end to a vehicle part is threaded through a pulley on the cross bar and attached to the forklift vertical lift apparatus. The forklift may then be operated to pull the cable and thereby the part to which attached. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.

Abstract: A system and method for detecting a stuck or malfunctioning fuel tank level sensor calculates an estimated fuel tank level sensor value and compares the estimated sensor value with the actual sensor value. Upper and lower threshold values may also be determined along with the estimated value. If the actual sensor value falls outside the threshold values, the sensor is considered faulty and an error signal is set in the system. The system also compares the actual sensor value with a reference sensor value to detect whether the fault is due to a stuck sensor or due to a different type of sensor malfunction.

Abstract: A chamber for trapping soil gases as they evolve from the soil without disturbance to the soil and to the natural microclimate within the chamber has been invented. The chamber opens between measurements and therefore does not alter the metabolic processes that influence soil gas efflux rates. A multiple chamber system provides for repetitive multi-point sampling, undisturbed metabolic soil processes between sampling, and an essentially airtight sampling chamber operating at ambient pressure.

Abstract: A method and a system are disclosed for identifying a gas type. The system includes a first sensor in contact with the gas and which produces a first electrical output signal indicative of a first condition of the gas. Similarly, a second sensor is also in contact with the gas and produces a second electrical output signal indicative of a second condition of the gas. A processor receives the output signals as input signals from the first and second sensors and determines the type of gas by calculation or from lookup tables stored in memory accessible to the processor. The first and second conditions of the gas are selected from the group of temperature, mass flow rate, temperature and pressure.

Abstract: A closed, gaseous fluid analyzing system includes a gas analyzer measuring cell that operates under substantially stable conditions by controlling both the pressure and flow rate of a plurality of differing gas streams while passing through the analyzer measuring cell. The plurality of gas streams are individually extracted and segregated while passing through the system, with the measuring cell being positioned between a flow controller and pressure regulator that cooperate to control upstream and downstream pressure and flow rate fluctuations in the gas streams. Methods of maintaining both substantially constant pressure and flow rate for the gas streams flowing through the analyzer measuring cell are also set forth.

Abstract: A self contained field sampling system for measuring engine exhaust emissions includes a mini-dilution tunnel adapted for the collection of proportional samples of emissions to be analyzed, an engine air intake flow measurement instrument, a system controller and data acquisition system, and an optionally portable generator to provide electrical power. Several probes withdraw dilute and undiluted exhaust for emission analysis. Various engine emissions may be isolated. As well, engine emissions mass rate may be calculated by reference to engine RPM, inlet flow rate, exhaust temperature and emissions output rate.

Abstract: An integrated mesopump-sensor suitable for disposition in two- and three-dimensional arrays having small dimensions is disclosed. One mesopump is formed of an electrostatically attractable flexible diaphragm disposed through cavities or pumping chambers formed between two opposing electrostatically chargeable material layers. Fluid is pumped through the chambers by sequentially moving the diaphragm toward the first chargeable layer, then towards the second chargeable layer, which can pull and push the fluid through a series of chambers, and past the sensor. One group of sensors utilizes multiple and varied chemoresistive sensors which can vary in resistance differently in response to the presence of various analytes. Another group of sensors utilizes chemo-fluorescent sensors that fluoresce in the presence of particular analytes.

Abstract: A mail tub in the form of a substantially rigid container and a removable lid which seals the container. The container includes an air inlet port and an air outlet port for sampling air in the mail tub for possible biological contamination, such as anthrax. The container includes structure along the bottom and walls to prevent mail from contacting the walls and bottom. Such structure, in one embodiment, may include raised standoffs along the bottom of the container and channels along the walls to facilitate airflow efficiency through the mail tub when the lid is attached and an air pressure source is applied to the one of the ports. Air samples of the sealed container air are collected for contamination analysis.

Abstract: A method of measuring the permittivity of porous media by passing a fluid from a chamber with a decreasing volume to a chamber with an increasing volume through the media. The volume of the cylindrical chambers is controlled by pistons with coaxial piston rods connected externally and driven by an electric motor, determining the fluid flow through the porous media while transducers in each chamber measure the pressure difference across the porous media. In addition means are provided to observe the fluid flow though the porous media using a video camera.

Abstract: In order to detect a leakage in a fluid system of a blood treatment apparatus having an extracorporeal blood circuit, the pressure in the fluid system is measured continuously during a predetermined period of the duration of treatment, and the leak rates are calculated from the change in the pressure at predetermined time intervals of the predetermined period of the duration of treatment. The leakage volume in the predetermined period of the duration of treatment is calculated from the leak rates, and the leakage volume is compared with a predetermined limit value. If the leakage volume is greater than the limit value, this indicates a possible loss of leaktightness in the system. This can be verified with a conventional pressure-holding test. The method and device are characterized by the fact that it is not necessary in principle to interrupt the blood treatment in order to detect a loss of leaktightness.

Abstract: In a method for checking the tightness of a tank-venting system of a vehicle, one tightly closes the tank by means of a blocking device after shutting off the vehicle. Thereafter, one detects the pressure, which develops in the tank system, with a pressure sensor and draws a conclusion as to a leak based on the pressure trace over time. An arrangement for checking the tightness in accordance with this method is suggested.

Abstract: In combination, an instrument for determining a characteristic of a biological fluid or a control, and a cuvette for holding a sample of the biological fluid or control, the characteristic of which is to be determined. The instrument comprises a radiation-reflective surface, a first source for irradiating the surface, and a first detector for detecting radiation reflected from the surface. The cuvette has two opposed walls substantially transparent to the source radiation and reflected radiation. The first source and first detector are disposed adjacent a first one of the two opposed walls. The radiation reflective surface is disposed adjacent a second of the two opposed walls. A second source is provided for irradiating the surface. The first detector detects radiation from the second source reflected from the surface.

Abstract: A device and a method for testing a viscosified fluid containing particulate indicate when the particulate is in suspension within the fluid and when it is not. The device and method stir the fluid and particulate mixture for a time during which the viscosity of the fluid changes such that during a first period of the stirring time substantially all the particulate remains suspended in the fluid and during a second period of the stirring time substantially all the particulate settles out of suspension in the fluid. A signal is generated during the first and second periods such that the signal has a characteristic that changes from the first period to the second period to indicate the change in particle carrying ability of the fluid. Other characteristics, including crosslinking time, can also be determined. A test chamber includes interacting projections extending from the inner surface of a cup receiving the fluid and from an axial support extending into the fluid in the cup.

Abstract: A fully automated Coriolis-based well system which can deliver accurate volumetric flow rate measurements in three phase flow. Measurements are performed according to a process including using N equations and N unknowns technique.

Abstract: The present invention discloses an apparatus for determining the density and the phase fraction of a fluid flowing in a conduit. The apparatus comprises a fiber optic density meter situated along the conduit that provides a signal indicative of the density of the fluid. The density meter includes two sound speed meters disposed at different sensing regions along the pipe. The sensing regions have a substantially different cross sectional area compliance. Each sound speed meter measures an acoustic pressure within the pipe at its corresponding axial location and provides a signal indicative of the effective fluid sound speed at its corresponding sensing region. Because each sensing region has a substantially different cross sectional area compliance, the density of the fluid is determined by the difference between the effective fluid sound speed signals. From the effective sound speed at either sensing region or from a separate acoustic sensor array, the infinite fluid sound speed may be determined.

Abstract: A dose-measuring device designed to be inserted in the neck of a flask (1) includes a first metering compartment (A) and a second reserve compartment (B) communicating with the outlet of the measuring device and the metering compartment (A). The device also includes an outer tubular element (5) nested in the neck (2a) of the flask (1), closed at its lower end and open at its upper end and an inner tubular element (5) nested sealed in the outer tubular element (5), including an intermediate body (16), delimiting inwards, the metering compartment and a lower part forming a transfer conduit (23) extending downwards emerging into the metering compartment (A) and in the reserve compartment (B).

Abstract: An adjustable meter loop assembly for connecting a gas meter to a gas supply line and a gas service line which includes a gas inlet conduit, a gas outlet conduit, and an adjustable brace. The gas inlet conduit is connectable to a gas inlet of the gas meter and the gas supply line. The gas outlet conduit is connectable to a gas outlet of the gas meter and the gas service line. The adjustable brace connects the gas inlet conduit to the gas outlet conduit. At least one of the gas inlet conduit and the gas outlet conduit is rotatable so as to permit the position of a second end of one of the gas inlet conduit and the gas outlet conduit to be selectively altered.

Abstract: A fluid volumetric pumping system has a fluid pump and capacitor plates disposed around a pump chamber of the fluid pump. The capacitance between the capacitor plates changes as the volume of fluid in the pump chamber changes. An electrical circuit measures a change in the capacitance between the plates and outputs a signal indicative of the volume of fluid in the pump chamber. The pump having the capacitance sensor of the present invention fluidly connects to a patient. In an embodiment, a peritoneal dialysis system provides dialysate to the patient via the pump, and the capacitance sensor measures the volume of dialysate supplied to and drained from a peritoneal cavity of the patient.

Abstract: A micro-distance toss-up type absolute gravimeter comprises a vacuum container mounted on the ground, a reference mirror supported in the vacuum container, a drop mirror to be dropped within the vacuum container, a toss-up device that tosses up the drop mirror by a constant distance, an atomic clock that can define time with a high precision, an interferometer that measures the position of the drop mirror in time series, and can acquire an interference waveform, and an operation unit that calculates gravitational acceleration based on the interference waveform obtained by the interferometer and the time defined by the atomic clock.

Abstract: To provide a movement-detecting altimeter designed so as to be capable of avoiding excessive accumulation of errors. The movement-detecting altimeter has a movement dependent altitude updating unit which updates an indicated altitude when a moving condition is maintained, and which avoids updating of the indicated altitude when the moving condition is not maintained.

Abstract: There is disclosed a system for detecting defects in wheels, tires, bearing and supporting mechanisms of a vehicle. A plurality of microphones is installed in different locations of the vehicle to receive noises or sounds when the vehicle is in motion. The electrical signals converted from the noises or sounds by each microphone are fed to an amplifier and filter circuit. The amplified signals are fed to a loudspeaker located preferably in the compartment of the driver. By sequentially monitoring the levels of the amplified and filtered signals from each microphone or in a pair of microphones, defects in the wheels, tires and bearings can be detected before the occurrence of further damages or accidents. The levels of the amplified signals from each microphone may be displayed simultaneously by an array of light emitting devices.

Abstract: An apparatus 100 for measuring a gas concentration comprises a conduit 102 through which an objective gas to be measured flows, a ultrasonic transmitting and receiving element 118 fixed in a straight portion 108 of the conduit, a reflecting plate 122 fixed in the straight portion to face to the ultrasonic transmitting and receiving element, a transmit-receive switching element 124 for switching the operational mode of the ultrasonic transmitting and receiving element between a transmitting mode and receiving mode.

Abstract: A technique for determining particulate density in a fluid monitors the changes in the speed of sound. Since the speed of sound is intimately related to the composites of the air mixture and since the speed of sound of clean air at any temperature and humidity can be calculated exactly, it is possible to estimate the density of any foreign particulates in the air by observing changes in the speed of sound.

Abstract: The invention concerns a method and a device for inspecting pipelines, in particular for detecting defects in pipelines by means of ultrasound. Towards this end, measuring sensors transmit ultrasound signals during passage through a pipeline. The signals reflected on boundary regions of a pipeline wall, e.g. surfaces or defects, are then measured and evaluated. The invention is characterized in that partial regions of the measuring sensors (virtual sensors) formed of a plurality of neighboring sensor elements irradiate ultrasound signals into the pipe wall at at least one radiation angle which is inclined with respect to the normal to the pipe wall and the signals reflected at boundary regions of the pipe wall are received by same and/or other partial regions of the respective measuring sensors, wherein defects in the pipe wall are determined by evaluation of the acoustical signals reflected by different boundary regions.

Abstract: Disclosed is a bi-directional differential pressure flow sensor that is configured to establish a direction and flow rate of a fluid flow. The flow sensor includes a flow restriction member, a differential pressure sensor, and processing electronics. The flow restriction member is configured to produce a pressure drop when placed inline with the fluid flow. The differential pressure sensor is embedded or integral with the flow restriction member and produces a differential pressure signal that is indicative of the pressure drop. The processing electronics produces a flow rate signal that is indicative of the direction and flow rate of the fluid flow as a function of the differential pressure signal.

Abstract: A sensing device of the present invention comprises a first resistive branch comprising first and second resistors connected in series, a second resistive branch comprising third and fourth resistors connected in series and arranged in parallel with the first resistive branch to form a bridge circuit, first and second feed wiring arrangements connecting the first and second resistive branches to a power source side, respectively, in parallel to each other, and a ground wiring arrangement connecting the first and second resistive branches to a ground side.

Abstract: An improved device for proof load testing of bearings. More specifically, it comprises of a cylinder body (8) having formed therein a cylinder cavity (9). The cylinder cavity has a cylinder protrusion (5) at its center forming an “O” type cylinder cavity. A piston (3) having a piston cavity (11) formed in its body creating an “O” type piston wall is slidably mounted and inserted into the cylinder cavity forming a chamber. A threaded cap (2) is placed over the piston and tightened onto the threaded exterior wall of the cylinder body. The chamber formed by the “O” type piston within the “O” type cylinder contains hydraulic fluid. An axial bore hole (10) extends through the center of the piston and cylinder. The cylinder wall and piston wall have “O” rings (4) (7) which prevent the leakage of hydraulic fluid from the chamber.

Abstract: Method and apparatus for measuring, monitoring and/or providing an indication of material “damage” in board products, particularly Machine Direction (MD) Shear. In this regard, the present document discloses applying a predetermined force to a board product such that the board product is not deflected beyond its elastic region. The apparatus used for applying the force is preferably of a size or structure suitable for physically limiting the amount of deflection of the board product. By maintaining the board product within its elastic region as such, the occurrence of permanent damage to the board product is reduced. Hence, the disclosed method and apparatus are able to provide a non-destructive indication of MD Shear on the paperboard product being tested, and are thus suitable for use in on-line testing/monitoring of paperboard production.

Abstract: An acoustic gas meter has an acoustic transmitter/receiver arrangement disposed within a gas flow conduit for transmitting and receiving acoustic energy along an acoustic path. A temperature probe has an elongate sensor region disposed relative to, preferably along, the acoustic path to provide a measure of a gas temperature indicative of an average gas temperature within the acoustic path.

Abstract: A patient monitoring system includes a replaceable laminar sensor to be placed on a bed, the sensor including distributed force sensing elements providing output signals to processing apparatus including a near-bed processor and a central processor coupled to the near-bed processor by a wireless communication link. The processing apparatus applies spatial weighting to the sensor output signals to derive the force distribution across the sensor, and processes the force distribution over time to generate patient status information such as patient presence, position, agitation, seizure activity, respiration, and security. This information can be displayed at a central monitoring station, provided to a paging system to alert attending medical personnel, and used to update medical databases. The sensor may be manufactured from layers of olefin film and conductive ink to form capacitive sensing elements.

Abstract: A measurement device (10; 110; 210) and associated seating arrangement, in particular for measuring a weight acting on a vehicle seat, that includes: a force transmission element (12; 112; 212), which is connectable to a first unit, preferably a vehicle seat, and a measurement assembly (14; 50; 114; 214), which is rigidly connectable to a second unit (80), preferably a vehicle body part. The force transmission element (12; 112; 212) is pivotable about at least one axis around the measurement assembly (14; 50; 114; 214).

Abstract: This apparatus and method allows collection concentrated sample of content in shipping packages without unsealing the package by forcing airflow via existing hidden gaps (101) or, if necessary, creating one by a small incision.

Abstract: A hollow cylinder (12) surrounded within the helical coil of an extricating compression spring (10) filled at its breech and sharpened at its open front end for penetrating and capturing samples of material. The assembly itself is a projectile, or is attached to a projectile (24) which conveys it to a remote sample location and imbeds it into the sample material with inertia. The assembly is held together with keeper pins (22) inserted through common holes. The imbedded core barrel (12) with its sample chamber filled with a representative sample of material extricates itself from the host matrix by means of an extricating compression spring (10) releasing its force against the surface of the host material. Once self-extricated and distanced from the sampled material it falls to the nearest horizontal surface.

Abstract: A collecting device for collecting particles floating in the atmosphere includes a collecting container; a pump for sucking the atmosphere into the collecting container; a discharge electrode disposed in the collecting container for generating single polarity ions to charge the particles in the collecting container; and a dust-collecting electrode for collecting the charged particles in the collecting container through a potential difference between the discharge electrode and the dust-collecting electrode. The dust on the dust-collecting electrode is measured and analyzed.

Abstract: The invention is directed to indicator inserts for industrial diagnostic gauges and to industrial diagnostic gauges having at least one indicator insert that are utilized in industrial applications such as pressure and temperature gauges utilized in petrochemical plants. The indicator insert preferably includes at least one indicator insert marking having luminescent materials and reflective materials to facilitate accurate reading of the industrial diagnostic gauges in low and no light conditions from distances greater than 4 feet. Broadly, the industrial diagnostic gauges include a housing, a diagnostic member, a face, at least one hand operatively associated with the diagnostic member, a clear window, an indicator insert, and a retaining ring. The indicator insert includes a top surface that includes at least one indicator insert marking.