Abstract: A system is provided for delivering gas to a patient during a medical procedure. The system comprises a heater arranged to heat at least one of the gas and a humidification liquid. The system comprises a controller arranged to control the system according to a first mode during delivery of a first flow rate of gas and a second mode during delivery of a second flow rate of gas. The controller monitors an electrical characteristic of the heater to select the mode of operation and/or to determine an operating state of the system.

Abstract: The present invention relates to the technical field of development of underground resources such as petroleum, natural gas, geothermal energy, etc., in particular to a downhole explosion robot based on planetary roller screw telescoping and traction method thereof. The present invention provides a downhole explosion robot based on planetary roller screw telescoping and traction method thereof, comprising a rear joint, a rear main body, a telescopic sub, a front main body, and a front joint, and the rear main body is provided with a rear control sub and a rear support sub; the front main body is provided with a front support sub and a front control sub, and the telescopic sub is respectively connected with the rear support sub and the front support sub. The invention has the advantages of reliability and stability, with less impact on the tube string, and can be applicable to smaller wellbore.

Abstract: A method of inspecting a surface of a component, e.g. a turbine or compressor blade of a gas turbine engine. The method comprises (a) providing a probe for inspecting the component surface; (b) defining a reference surface that is offset from the component surface; (c) moving the probe so as to contact a plurality of discrete spaced apart inspection points on the component surface, each contact of the probe with an inspection point comprising a first movement of the probe from the reference surface to the inspection point; (d) retracting the probe from the component surface after each contact with an inspection point; and (e) inspecting the component surface each time the probe contacts an inspection point.

Abstract: A system and method passively normalize an ultrasonic dry coupled wheel probe as the probe traverses a surface of a structure to inspect the structure, such as a flat structure or a curved pipe. At least a pair of arms are configured to passively maintain normalization of the probe in a detection direction normal to the surface.

Abstract: A pipeline sphere is shown which houses an electronics package. The sphere is formed as a hollow elastomeric body having a predetermined wall thickness and an initially void interior. A carrier tube is positioned within the initially void interior of the sphere and is supported by oppositely arranged carrier plates which are themselves embedded within oppositely arranged end openings of the sphere. A removable inflation valve is contained in one of the valve plates at a first end of the carrier tube. The carrier tube has a plurality of apertures formed through its wall to enable inflating or deflating the sphere. One electronics package that can be used is an electrical tracking device.

Abstract: A probe assembly for a surface analysis instrument such as an atomic force microscope (AFM) that accommodates potential thermal drift effects includes a substrate defining a base of the probe assembly, a cantilever extending from the base and having a distal end, and a reflective pad disposed at or near the distal end. The reflective pad has a lateral dimension (e.g., length) between about twenty-five (25) microns, and can be less than a micron. Ideally, the reflective pad is patterned on the cantilever using photolithography. A corresponding method of manufacture of the thermally stable, drift resistant probe is also provided.

Abstract: A closed conduit system is provided for use in a water supply. The system may include a recirculating unit having a pump and a filter, and first and second pig launch and recovery apparatuses. Each pig launch and recovery apparatus includes a flow tube having a first flow end coupled with the recirculating unit, an opposing second flow end mounted to a hydrant, and a main flow valve. A launch and recovery tube has a first launch end coupled to the flow tube between the first flow end and the main flow valve, and a second launch end fluidly coupled to the flow tube between the main flow valve and the second flow end. An isolated section of the water supply system is defined between the hydrants with the recirculating unit, the pig launch and recovery apparatuses and the isolated section forming a closed circuit.

Abstract: The present invention relates to an integrated system for monitoring physiological variables in cardiopulmonary bypass process, which utilizes a transducer specifically intended to act directly on the cardiopulmonary bypass. Said system according to the present invention comprises at least two components, one is a CPB transducer and a minimonitor, coupled to each other by means of a cable and an electrical connector.

Abstract: Systems and methods for configuring a robot for inspecting an inspection surface are disclosed. An example system may include an inspection robot having a payload coupled to at least two inspection sensors and a controller. The controller may include a route profile processing circuit to interpret route profile data for the inspection robot, a configuration determining circuit to determine one or more configurations for the inspection robot in response to the route profile data; and a configuration processing circuit to provide configuration data in response to the determined one or more configurations, the configuration data defining, at least in part, one or more inspection characteristics for the inspection robot.

Abstract: The present invention proposes a device for positioning a wheel speed sensor relative to a pole wheel, comprising a fastening mechanism for attaching the device to an axle body part, a receiving region for receiving the wheel speed sensor, and a positioning mechanism for the controlled setting of a distance between the receiving region and the pole wheel.

Abstract: According to one embodiment, a vibration detecting device includes a housing, a vibration sensor, a circuit board, a flexible wiring member, and an elastic member. The vibration sensor is accommodated in the housing. The circuit board is accommodated in the housing, and is provided with a first electric component configured to process a detection signal of the vibration sensor. The wiring member electrically connects the vibration sensor and the circuit board to each other. The elastic member contains a polymer material, and is accommodated in the housing as being in contact with the housing and the circuit board, and being detachable from the housing. The circuit board is held by the housing through the elastic member.

Abstract: An in-pipe moving apparatus that can freely and smoothly move in a pipe having a bent portion and a branching portion, is not stuck in the pipe even if a drive motor of a movement mechanism fails or otherwise experiences a problem, and can be readily taken out of the pipe. The in-pipe moving apparatus includes two sets of wheel-based traveling elements (2A) and (2B), which each have two driving wheels (8A) and (8B) linearly arranged, and a variable bag, which is expanded and contracted in accordance with the pressure of a fluid supplied to the variable bag, and the two sets of wheel-based traveling elements (2A) and (2B) are so disposed as to sandwich the variable bag (3) and are fixed to the outer surface of the variable bag (3).

Abstract: Apparatuses and methods measuring properties of drilling fluids in which the drilling fluid is contained in a structure, and a measuring device and a processor are used to measure the properties. The measuring device is immersed within the drilling fluid. The measuring device can comprise a shell defining a chamber, a weight adapted to cause the measuring device to sink through the drilling fluid, a transmitter and at least one sensor adapted to measure a property of the drilling fluid. The transmitter is adapted to transmit data representing the property to the processor.

Abstract: A probe station includes a base, a adaptor, a probe holder and a probe. The adaptor has a first portion and a second portion away from the first portion towards a first direction by a first length. The first portion connects to the base. A probe holder connects to the second portion and extends towards a second direction opposite to the first direction by a second length. The probe connects to an end of the probe holder away from the second portion and extends towards the second direction by a third length. A product of a thermal coefficient of the adaptor and the first length is equal to a sum of a product of a thermal coefficient of the probe holder and the second length and a product of a thermal coefficient of the probe and the third length.

Abstract: A deployable device including a deployable member. The deployable member includes an optical fibre. The deployable member is stowed at the device in a first wound configuration and arranged to be deployed from the device to a second unwound configuration within a well. In examples, the deployable device is configured such that, when unwound, the deployable member has a propensity to adhere to a wall within the well. In examples, the deployable member includes at least a first length and second length, the first and second lengths having different mechanical properties.

Abstract: An array of sensors provided on the outside of a tubular string for measuring a property within the tubular string. The array of sensors may include a plurality of connected sensors, wherein at least one of the plurality of connected sensors is at least partially encompassed in a shroud. A snorkel line may extend from the shroud, the snorkel line capable of coupling with a sensor port in a tubular of the tubular string. The snorkel line may establish fluid communication between one of the sensors at least partially encompassed in the shroud and a corresponding sensor port of a tubular in the tubular string.

Abstract: To enable fine adjustment of a sensor in a mounting device, a mounting device is provided for holding the sensor in an operating position. The mounting device comprises a base body having a first through-hole, a holding member having a second through-hole. The sensor is held in these through-holes by displacement of the holding member versus the base body and shifting the through-holes out of alignment. The holding member comprises an adjustment element, in particular a thread, which engages with an outer surface of the sensor in such a way that, when the sensor is rotated about a sensor central axis, the adjustment element causes the sensor to move along the central axis.

Abstract: A probe head includes a linear probe which is flattened at least one of tail, body and head portions thereof and thereby defined with first and second width axes, along which each of the tail, body and head portions is defined with first and second widths, and upper and lower die units having upper and lower installation holes respectively, wherein the tail and head portions are inserted respectively, which are offset from each other along the second width axis so that the body portion is curved. The first and second widths of the body portion are respectively larger and smaller than the first and second widths of at least one of the tail and head portions. As a result, the probes of the same probe head are consistent in bending direction and moving behavior and prevented from rotation, drop and escape.

Abstract: The present disclosure describes a hybrid, wireless sensor network architecture for monitoring, operating, controlling, or maintaining a fluid delivery and distribution system. The architecture includes intelligent fittings locatable at almost any location within the system and that are configured with sensor modules to make measurements of characteristics of a fluid passing therethrough or of component parameters, and with wireless communication modules to wireless communicate the measurements. The intelligent fittings may be used, via strategic location, to convert unintelligent components of the system into intelligent components at a cost lower than that required to replace the unintelligent components with intelligent components. The intelligent fittings may also replace unintelligent fittings to provide supplemental data corresponding to fluid characteristics at desired locations of a fluid delivery and distribution system.

Abstract: The invention relates to a filling level measuring device (10) for measuring the filling level in a container (2) through the wall (9) thereof by means of ultrasound, having an ultrasonic measuring head (12), a controller (20), and a fastening device (24) by means of which the filling level measuring device (10) can be fastened to the container (2) such that the ultrasonic measuring head (12) is pressed against the wall (9) of the container (2). The invention further relates to a method of operating such a filling level measuring device (10), wherein a sampling rate is used which is situation-dependent. The invention finally relates to an assembly made up of such a filling level measuring device and at least one spacer (50) which can be attached to the lower edge of a container (2) to be provided with the filling level measuring device (10).

Abstract: A pH sensor for a single-use container includes a plunger sleeve configured to couple to a flange of the single-use container. A plunger is axially movable within the plunger sleeve between a storage position and an operating position. A pH sensing element coupled to the plunger wherein the pH element is disposed within a storage chamber in the storage position and is configured to be exposed to an interior of the single-use container in the operating position. In one example, a temperature sensitive element is disposed within the pH sensor and configured to sense temperature proximate the pH sensing element. In another example, a lock member is coupled to the plunger, where the lock member has a locked position and an unlocked position, the lock member being configured to inhibit movement of the plunger when in the locked position. In yet another example, the plunger includes at least one filling channel that allows access to a reference fill chamber when the plunger is in a filling position.

Abstract: A connection apparatus comprises: a connecting nozzle having a lumen surrounded by a nozzle wall; as well as a tubular cable duct with a lumen surrounded by a duct wall and extending from a duct end to a duct end remote therefrom for guiding electrical connecting lines. The nozzle wall, or the connecting nozzle formed therewith, has an opening and an opening remote therefrom. The cable duct and the connecting nozzle are additionally so arranged that the cable duct is partially located in the lumen of the connecting nozzle and partially accommodated both by the opening of the nozzle wall as well as also the opening of the nozzle wall, and that a cavity is formed between an inner surface of the nozzle wall facing the lumen and an outer surface of the duct wall facing the lumen. Moreover, the cable duct and the connecting nozzle are so connected together that the cavity is closed gas tightly.

Abstract: Provided is a jig enabling detachment and attachment of a probe head from and to an electric connecting apparatus without using a special holding device. A jig (50) is applied to an electric connecting apparatus (10) electrically connecting a device under test to a testing apparatus for the device under test. The electric connecting apparatus includes a wiring substrate (22) and a probe head (28) secured to the wiring substrate with a plurality of set screws (26) and including a plurality of probes (34) made of a magnetic body. The jig (50) includes a plate (52) and a magnet (54) attached to the plate. The plate can detachably be attached to the probe head, and the magnet is opposed to a lower end portion (34 b) of each of the probes.

Abstract: The invention resides in a sensor unit (100) for measuring and monitoring a plurality of parameters associated with an asset or equipment (126, 128) having a fixing connected thereto. The asset can typically be an object, such as a rail or motor casing, that is fixed, using a fixing (122) such as a bolt. The sensor unit has a housing (112) having a portion (120) for receiving a fixing therethrough; sensors (114) arranged to measure and/or monitor (i) parameters associated with a fixing that is secured to the asset via housing and/or (ii) parameters influencing the performance of the asset; a processor (142) configured to process data from the sensors; and a communicator (116) adapted to transmit said data to a remote device. At least one of the sensors can be an inductive sensor, which can measures the displacement or force applied to a fixing against the asset to which it is fixed, said fixing is biased against a resilient member located in the housing.

Abstract: A video pipe inspection system may include a push-cable, camera head, and pipe guide having a pair of cylindrical shells, with each shell having a plurality of radially extending circumferentially spaced vanes and structure for holding the shells together when the shells are axially mated end-to-end. A pair of curved tab arms may extend circumferentially about corresponding ones of the cylindrical shells. A pair of slide-locks may be configured to slide over corresponding ones of the tab arms to move them into a locking position in which keys on the tab arms extend between adjacent coils of a coil spring surrounded by the shells.

Abstract: Provided are multi-parameter sonde systems having a unique form-factor, wherein the plurality of sensors are arranged in a tight-fit configuration. This provides a single distal sensing surface and minimal separation distance between adjacent sensors. The sensors may be pie shaped with an interlocking feature to tightly hold the sensors together, with a sensor guard disposed over the outer surface of the interlocked sensors. Sensor-guards disclosed herein may have an integrated sensor storage and sensor guard configuration, thereby avoiding a need for a separate storage cup and that are configured to minimize unwanted biological growth. Also provided are uniquely shaped individual sensors having interlocking features to hold several sensors together in a sonde.

Abstract: A mountable sensor assembly for mounting on the sheet metal of a vehicle assembly. The sheet metal may have an opening for mounting the mountable sensor assembly. The mountable sensor assembly may include a sensor circuit and a sensor housing assembly. The sensor housing assembly may include a first portion with a cavity that receives the sensor circuit and a second portion that slideably interacts with the first portion to lock the sensor housing into the opening in the sheet metal.

Abstract: There is disclosed herein a probe comprising a process connection for mounting to a process vessel. A sealed connector is for connection to the measurement instrument and includes an extension sleeve. A return tube extends from the extension sleeve and is secured to the process connection, the return tube has a connector end proximate the sealed connector and a distal end including vent openings below the process connection. A process tube is connected to the distal end of the return tube and extends into the process vessel. A center conductor is coaxial with the return tube and the process tube for conducting the pulses. A target tube is coaxial with and received within the return tube to define a condensation return path therebetween. The target tube extends downward from a near end at the return tube connector end by bottom end to a position below the process connection. The target tube includes apertures at the near end opening into the condensation return path.

Abstract: A contact force testing apparatus includes a measuring sensor that can be contacted with an electrical contact element and measures a contact force (F) of a contact with the electrical contact element. The measuring sensor includes piezoelectric material that receives the contact force (F) in a contact region and produces polarization charges. The measuring sensor includes an acceptor electrode that is completely surrounded by piezoelectric material in the contact region in the direction of a thickness extension of the measuring sensor and receives the polarization charges. A method is provided for the use of such a contact force testing apparatus, and a method is provided for producing such a contact force testing apparatus.

Abstract: According to an embodiment, an inspection system comprises: a moving body including a moving main body movable along a structure; a detector attached to the moving main body; a shape information storage unit for storing shape information indicating shape and size of the structure; an inspection location information storage unit for storing information of inspection locations to be inspected; an inspection item information storage unit for storing information of inspection items to be inspected; a moving body location detecting unit for detecting moving body location information indicating location of the moving body; a moving control unit for controlling movement of the moving body; and an inspection control unit for inspection.

Abstract: A scalable monolithic sensor assembly, controller, and methods of making and installing same are disclosed. The sensor assembly includes a sensor head sized to fully traverse the diameter of the pipe such that its electrodes sample a voltage indicative of the entire pipe flow across its diameter. An improved stem design is included that decreases insertion force and increases lateral stability of the sensor head. An improved insertion device is disclosed that provide for independent axial insertion and rotation. An improved core is disclosed that minimizes interference of magnetic fields and reduces manufacturing costs. An improved controller is disclosed that improves sensitivity.

Abstract: An apparatus for measuring flow in a conduit includes a sensor head configured for insertion transversely through a conduit sidewall to position the sensor head in an electrically conductive fluid flowing through the conduit. The sensor head includes a core and a coil that at least partially surrounds the core, the coil being excitable to generate an electromagnetic field. The sensor head also includes first and second electrodes spaced apart from each other, and a body that supports the coil, core, and electrodes. The body includes at least one channel through which the electrically conductive fluid flows. The electrodes are positioned in the at least one channel. Each channel is defined by opposing sidewalls that have a converging configuration.

Abstract: Biometric detection of a fingerprint is provided by a flexible sensor, in which one or more positioning members move at least a portion of the sensor to conform to a shape of a finger disposed along the sensor to enable capture of a rolled-equivalent fingerprint for the finger. Such one or more positioning members move the sensor causing it to curl at least along a region extending between right and left sides of a fingernail of the finger around a front of the finger in order to conform the sensor to the finger so that the sensing elements of the sensor when enabled capture images of the rolled-equivalent fingerprints without rotation or rocking of the finger with respect to the sensor. When sensing elements are optically sensitive, one or more light sources may provide light to illuminate the finger when the sensor captures rolled-equivalent fingerprint images.

Abstract: The present disclosure relates to the use of a sensor well encoded in a structural, electrical, magnetic, or optical manner so as to provide the sensor well with a unique or otherwise distinctive fingerprint. In addition, a sensor configured to be positioned within the sensor well incorporates a sensing modality for reading or detecting the encoding of the sensor well.

Abstract: An outside sensor unit includes an outside sensor, a main bracket, a support bracket, and a cover member. The main bracket is attached to a vehicle body. The support bracket supports the outside sensor and is attached to the main bracket rotatably adjustably. The cover member covers an outer circumference in an outside detection direction of the outside sensor. The main bracket has a base wall that is attached to the support bracket rotatably adjustably and an attachment seat that is arranged at a position which is offset in the outside detection direction of the outside sensor with respect to the base wall. The cover member is attached to the attachment seat.

Abstract: A method for determining an N+1-dimensional environmental model is provided. According to the method, environmental information in N dimensions is determined using a sensor. In a further step, position and/or orientation of the sensor is/are determined. Then, the N+1-dimensional environmental model is determined based on the determined environmental information in N dimensions and the determined position and/or orientation of the sensor. Further, a device and a mining apparatus are provided.

Abstract: A sensor mounting assembly for installing an environment sensor in a drop-down ceiling or light fixture of a building. The sensor mounting assembly includes a cylindrically-shaped carrier and a locking nut adapted to removably engage the carrier, and to clamp onto the mounting substrate. The carrier further is configured to receive the environment sensor from the front. The carrier and sensor include interlocking features to removably lock the sensor. Both installation and removal of the sensor may be performed from the front of the mounting substrate. Method and kits for mounting the sensor are described.

Abstract: A method of measuring, recording, and mapping at least one performance variable of a face of a golf club head.

Abstract: A hydraulic cylinder assembly, a sensor assembly for a cylinder assembly and methods of assembling and operating a cylinder assembly. The cylinder assembly may include a housing; a ram slidably mounted in the housing; and a sensor assembly mounted between the housing and the ram and operable to sense a side load. The sensor assembly may be incorporated into a bearing. In some constructions, the sensor assembly may include a capacitive sensor. In some constructions, the sensor assembly may include a piezoelectric sensor.

Abstract: Disclosed is a method for manufacturing a microcantilever having a predetermined thickness that includes forming a liquid synthetic resin for cantilevers to a thickness corresponding to the thickness of the microcantilever on an upper surface of a base block having an adhesive base and a non-adhesive base, and curing the liquid synthetic resin for cantilevers via a boundary between the adhesive base and the non-adhesive base, wherein the adhesive base has stronger adhesivity to the cured synthetic resin for cantilevers than the non-adhesive base.

Abstract: Provided is a wall-mounted drum washing machine which includes a rear panel having a buffer member interposed between a through-hole and a wall surface and mounted on the wall surface through a fastening member inserted through the through-hole, a tub containing wash water and supported by the rear panel, and a box unit coupled to the rear panel so as to surround the tub. The wall-mounted drum washing machine includes a sensor configured to sense a contact state between the rear panel and the wall surface, a control unit configured to determine a mounting abnormality of the drum washing machine based on the sensed contact state, and a power supply unit configured to control power supply according to the determination result of the control unit.

Abstract: A container system includes a flexible bag, a probe port, and a probe. The probe port includes an elongated tubular member having an interior surface bounding a first passageway extending between a first end and an opposing second end, the tubular member being made of a polymeric or elastomeric material and being flexible. The probe port also includes a flange coupled to the tubular member and radially outwardly projecting therefrom, the flange being secured to the flexible bag so that the first end of the tubular member projects into a chamber of the flexible bag while the second end of the first passageway of the tubular member is accessible from outside of the flexible bag. The probe is received within the first passageway of the probe port.

Abstract: A sampling apparatus is provided. The sampling apparatus may include at least a valve, a pump and an actuator. The valve may include a sampling channel, a transfer channel and an extraction channel. The pump may be connected to at least one of the transfer channel and the extraction channel. The actuator is operable to transition the valve from a sampling position to an extracting position. The sampling position includes a fluid connection between the sampling channel and the transfer channel and the extracting position includes a fluid connection between the transfer channel and the extraction channel.

Abstract: A magnetic sensor includes a semiconductor element, a lead frame, a bonding wire, and a package. The lead frame includes a die pad to which the semiconductor element is attached and an external connection lead. The bonding wire connects the external connection lead with the semiconductor element. The package seals the semiconductor element, the die pad, the external connection pad, and the bonding wire. The package is made of epoxy-based resin. The lead frame further includes a projecting portion extending from the die pad, the projecting portion is exposed from the package at a position different from a position of the external connection lead, and a partial surface of the projecting portion which contacts with the package is made of material having a higher ionization tendency than an ionization tendency of silver.

Abstract: In order to support an inspecting person in a method for the manual non-destructive inspection of a test object, a detection device is provided for detecting three-dimensional surface coordinates of a region to be inspected on the test object and for continuously determining positions and speeds of an inspecting tool relative to the test object Discrete position values and speed values of the inspecting tool for the respective measurement time points are stored by a storage device. A computing device determines the share of an already inspected region in relation to the total region of the test object to be inspected. The method and device can be used for manual inspection of test objects having a plurality of different shapes. The inspecting person is effectively relieved and the process for the non-destructive inspection is documented in order to guarantee a complete inspection.

Abstract: An intrinsically-safe handheld field maintenance tool is provided. The tool includes a process communication module configured to communicate with a field device in accordance with a process industry communication protocol. A controller is coupled to the process communication module and is configured to provide at least one function related to maintenance of the field device. Program instructions embodied on a computer readable medium coupled to the controller, the program instructions causing the controller, when executed by the controller, to provide operator rounds functionality, CMMS/EAM functionality and/or ERP functionality.

Abstract: A rigid mask protects selective portions of a chip including a plurality of wells for biochemical reactions. The rigid mask includes a supporting portion and a plurality of legs, where each leg is provided with a rigid stem and a plate. The plurality of legs are arranged and fixed with respect to the supporting portion in a way aligned to the spatial arrangement of the wells, and are configured in such a way that, when each leg is inserted into the corresponding well, the respective plate covers at least in part the bottom of the well, protecting it during a chemical/physical treatment of side walls of the wells.

Abstract: A handheld field maintenance tool with improved diagnostic functions is provided. The tool includes a process communication module configured to interact with a field device. A controller is coupled to the process communication module. The controller is configured to execute a number of improved diagnostic functions relative to the field device. The controller may obtain contextual information relative to a current field maintenance operation and preload at least one resource relative to a next field operation step. The controller may obtain process alarm information through a wireless communication module, and field device alert information through the process communication module and provide an indication on a display relative to both process alarm information and field device alert information. The controller may execute a sequence of field device maintenance operations on the field device in response to a signal from a user input device.

Abstract: A handheld field maintenance tool with improved functionality is provided. The handheld field maintenance tool includes a keypad, a display, a short-range wireless transceiver and a processor. The processor is coupled to the keypad, the display and the short-range wireless transceiver. The processor is also coupled to memory having a plurality of instructions stored therein, which instructions, when executed by the processor, cause the processor to perform at least one of remote wireless display; remote wireless keypress injection; and wireless printing.

Abstract: An assembly for insertion of an object into a pipeline comprises a base, a connector, and a set of pins. The base has a cylindrical passage and is connected to a mechanism for configured to drive the object into an inlet in the pipeline. The connector includes a head and a cylinder with a threaded internal surface and a an external surface having a groove spanning a extending around the circumference of the external surface. The connector is rotatable within the cylindrical passage in the base in a first direction and is held substantially axially stationary within the cylindrical passage in the base in a second direction by the set of pins in cooperation with the groove. The base is rotatable in the first direction and held substantially stationary in the second direction while connected to the inlet in the pipeline by the connector.