Abstract: A trimmer/edger attached to a conventional lawnmower and using the lawnmower's power source. The edger/trimmer cutting element is attached to the front of the lawnmower. A rotatable cable runs from the cutting element to a contact member attached at an opening on the lawnmower housing. A planar disc is secured to the top of the conventional grass cutting blade. Upon powering up the lawnmower, both the cutting blade and planar disc begin to rotate. Upon squeezing an operating lever, a rotatable portion of the contact member comes in contact with the rotating disc causing the rotatable cable to turn, which in turn causes the cutting head, having cutting strings attached, to spin and be able to be used as an edger or trimmer, depending on its position, at the same time the lawnmower is being used to cut the grass.

Abstract: Methods and devices for guiding harvest residue at the time of harvest to prepare crops for strip-tilling operations. Embodiments of the invention include an attachment for a harvesting machine, and a method of harvesting a row crop in a way that directs harvest residue into relatively narrow strips, leaving strips of soil between the strips of harvest residue in better condition for strip-tilling. The management and placement of harvest residue during harvesting operations according to embodiments of the invention may improve the overall efficiency and effectiveness of strip-tilling operations.

Abstract: A drive arrangement for split sickle bar sections of a harvester having a long cutter bar such as a combine, swather, mower-conditioner or the like utilizes separate drives for each sickle bar section, and provides for synchronizing the movement of the sickle bar sections so that they reach the respective ends of the reciprocating path simultaneously. In one form series connected first and second hydraulic motors are used, and the first motor in the series connection is reduced in speed from that which would be obtained from the full flow of a pump, by passing a portion of the pump fluid flow to a flow line leading to the second motor, a bleed valve bleeds off a portion of the flow in the flow line to regulate the second motor speed and position to match the speed and position of the first motor in response to signals indicating the position of the sickle bar sections. The sickle bar sections are thus synchronized.

Abstract: A heat exchange system for use in lubricating systems for aircraft turbofan engine equipment in which a lubricant is provided under pressure to spaces bounded at least in part by surfaces moving relative to one another, the heat exchange system for providing air and lubricant heat exchanges to cool the lubricant at selectively variable rates in the engine fan airstreams. A heat exchanger core is provided in a controlled air flow duct system opening at its plural entrances to the engine fan airstreams and having its outlet end opening about at the end of the fan duct nozzle.

Abstract: To provide a gas turbine engine which is simple in structure but can effectively remove foreign matters from the combustion air. The intake passage 21 includes an inlet portion 29, a curved portion 30 and a reduced diameter portion 31. The bypass duct 24 is curved away from the central axial line CL in a region corresponding to the curved portion 30 and reduced diameter portion 31 of the intake passage 29. Between the intake passage 29 and bypass duct 24 is defined an annular space 32. In the reduced diameter portion 31, the outer liner 20 is formed with a large number of foreign matter introduction openings 33 in a circumferential arrangement for communication between the intake passage 21 and annular space 32. The inner casing 4 is formed with a plurality of foreign matter ejection holes 34 in a circumferential arrangement in a part thereof that curves outward for communication between the annular space 32 and bypass duct 24.

Abstract: A gas generator comprises a casing forming a ring or a ring portion and housing a pyrotechnic charge, the casing including at least one vent for ejecting the gas produced during combustion of the charge. Because of its ring design, the gas generator is easy to integrate in the structure of a rotary machine. In particular, it can constitute a starter device for a turbojet.

Abstract: A gas turbine engine used in an aircraft includes a fan to provide a bypass flow through the engine. The fan delivers some airflow to the compressor for compression, and a fuel is mixed with the compressed air and delivered to a turbine to drive the engine and compressor and fan. The fan also delivers airflow to a central bypass passage located inward of the compressor. Guide vanes both upstream and downstream of the combustor each with cooling air passages therein, pass the bypass airflow from the inner bypass passage into an outer bypass passage located outward of the combustor and the turbine. The bypass flow through the guide vanes also cool the guide vanes and pass over and around the combustor to cool the combustor. The bypass airflow exits the engine at a location outward of the hot gas flow from the turbine.

Abstract: An exhaust gas purifying apparatus includes a primary diesel particulate filter provided in an exhaust line of a diesel engine, a secondary exhaust line branched from the exhaust line at an upstream side of the primary diesel particulate filter, a secondary diesel particulate filter provided in the secondary exhaust line, and a low pressure part provided in the secondary exhaust line at a downstream side of said secondary diesel particulate filter. The secondary diesel particulate filter has a soot load capacity smaller than the soot load capacity of the primary diesel particulate filter. The low pressure part provides a pressure lower than a pressure of the branching point. The apparatus further includes a differential pressure measuring part for measuring a differential pressure between an inlet and an outlet of the secondary diesel particulate filter.

Abstract: A hydraulic energy recovery device for a hydraulic system is disclosed. The hydraulic energy recovery device has a first impeller configured to receive a flow of pressurized liquid, and a second impeller configured to pressurize a flow of liquid. The hydraulic energy recovery device also has a common shaft connecting the first and second impellers.

Abstract: The present invention relates to an actuation device for the actuating of an adjustment surface of an aircraft such as an elevator, a rudder or the like, of landing gear or another aircraft or surface vehicle actuator, comprising an electrohydraulic actuator having a servo control cylinder, a pump for pressure fluid action on the servo control cylinder as well as an electric motor for the actuation of the pump, with the electric motor having a liquid cooling. In accordance with the invention, the actuation device is characterized in that a leak flow of the pump is guided over a leak passage through the electric motor to cool the electric motor.

Abstract: In a wave energy converter (WEC) for capturing energy contained in surface waves on large bodies of water, one or both of the floats used in the WEC has an internal spring system including a weight suspended from a spring mechanism having a selectively variable spring constant for allowing vertical oscillations of the weight in response to bobbing motions of the float The mechanical impedance of the system is a function of the oscillations of the weight, hence the system is tunable to selected values of mechanical impedance for optimal coupling with the prevailing waves.

Abstract: A method for controlling a variable geometry turbine of a turbocharger to increase the temperature of the exhaust gas delivered to an after-treatment system. In one form the method includes reducing a fluid flow area to the turbine below a normal size and bypassing a portion of the exhaust gas around a plurality of guide vanes.

Abstract: A method for monitoring and diagnosing an air charger system for use in an engine assembly having pre-existing sensors, having the steps of providing an air charger having a turbine and a compressor operatively coupled to one another. Providing a control unit for monitoring a plurality of operating conditions of the engine assembly. The control unit calculates an expected value of a selected operating condition based upon at least another of the plurality of operating conditions. Comparing the expected value and at least another of the plurality of operating conditions. Diagnosing a fault condition, if present, based upon the expected value and said at least another of said plurality of operating conditions being outside a predetermined tolerance.

Abstract: An energy efficient electrical power generator has a primary energy conversion mechanism, such as an internal combustion engine, and a secondary energy conversion mechanism, such as a thermoelectric device. The secondary energy conversion mechanism increases the electrical power output and efficiency of the generator.

Abstract: Solar generators have Fresnel lenses and spaced heat absorbers or photovoltaic cells for receiving focused solar rays. Heat is removed from their backs by boiling liquid in conical receivers. Pins or fins extend rearward into the receivers from the heat absorbers or photovoltaic cells. Liquid supply to the receivers is controlled by valves and floats or sensors. Tubes remove steam or vapor from the receivers for driving generators or for cooling photovoltaic cells. Hinged tubes which form the foldable support conduct the steam to generators and condense the vapor. Liquid is returned to a holding tank, is pumped to a distribution tank and is conducted by some of the structural tubes back to the valved receivers.

Abstract: A high-efficient heat cycle device formed by combining a heat engine with a refrigerating machine, wherein steam generated in a boiler is cooled by a condenser after driving turbine, built up by a pump, and circulated into the boiler in the form of high-pressure condensate. Refrigerant gas compressed by a compressor is passed through the radiating side of a heat exchanger for cooling after driving the turbine to output a work, and built up by a pump to form high-pressure refrigerant liquid. The high-pressure refrigerant liquid drives a reaction water-turbine to output a work and is expanded and vaporized to form refrigerant gas. The refrigerant gas is led into the compressor after being passed through the heat absorbing side of the heat exchanger and the condenser for heating.

Abstract: A cooling system for a turbine with a first section and a second section. The first section may include a first line for diverting a first flow with a first temperature from the first section, a second line for diverting a second flow with a second temperature less than the first temperature from the first section, and a merged line for directing a merged flow of the first flow and the second flow to the second section.

Abstract: A fuel nozzle for a gas turbine engine includes an engine mount end and a discharge end that discharges an air/fuel mixture into a combustion chamber. The fuel nozzle includes a centerbody and a heat shield. The heat shield is fixed to the centerbody at a mid-mount position that is centrally located between first and second ends of the heat shield to allow the heat shield to remain thermally isolated from radially adjacent components to reduce the adverse effects of thermal stresses.

Abstract: With a lean premix burner (1), a plurality of preferably V-shaped, closely spaced fuel channels (12) is formed into the circumferential fuel-supplied film application surface (8) of the atomizer lip (9) in the direction of flow, in order to achieve a better heat transfer to the fuel due to the uniform fuel distribution and a transverse flux in the plurality of small fuel flows caused by the Marangoni effect, to completely converse the fuel by early vaporization and improved spraying, to reduce nitrogen oxide emission and to suppress combustion-driven pressure oscillations.

Abstract: The invention relates to an open-cooled component for a gas turbine having an outer wall which is subjected to hot gas and which at least partly defines a first cavity for a first medium and in which through-openings are arranged, which through-openings open into the cavity on the one side and into the hot-gas space on the other side, and having at least one second cavity for admixing a second medium, this second cavity being fluidically connected to the through-openings. In order to specify a component for a gas turbine with which flashback and spontaneous ignition during feeding of fuel into the cooling air can be reduced, it is proposed that the second cavity be formed by supply passages which are provided in the outer wall and are connected via transverse passages (4) to the through-openings designed as through-bores, so that the two media cannot be mixed until inside the through-bores.

Abstract: The invention relates to a system (2) for deicing an aircraft turbine engine inlet cone (4) comprising air-diffusing means (18) intended to equip the inlet cone of the turbine engine so as to deliver hot air thereto. According to the invention, it also comprises a circuit (20) for removing pressurizing air from at least one bearing enclosure of the turbine engine, this circuit communicating with the air-diffusing means in order to be able to supply the latter with hot air.

Abstract: A heavy oil reforming system includes a reforming preheater raising the temperature of a mixed fluid comprising a high pressure heavy oil and high pressure steam up to a temperature for reforming reaction. The mixed fluid having been heated up to the temperature for reforming reaction is introduced into a reformer kept at the temperature for reforming reaction and thereby the heavy oil is reformed. This reforming system allows the attainment of a residence time of 1 to 10 min necessary for reforming in a uniform or nearly uniform temperature field, thereby implementing the manufacturing of reformed fuels from a large volume of heavy oil.

Abstract: The present invention related to cooling systems. More specifically, the present invention relates to a system for cooling one or more parts of a building and or processes comprising a compressor, a condenser having an inlet and an outlet and a plurality of condenser cooling fans, a receiver, a liquid refrigerant pump, an expansion device, an evaporator, the evaporator being surrounded by a chiller barrel having a cooled water return and a chilled water supply line, and refrigerant line means interconnecting the compressor, condenser, expansion device and evaporator in series, in a closed loop for circulating refrigerant therethrough; means for switching the cooling system between free cooling and mechanical cooling and means for actively floating the head pressure in both mechanical and free cooling modes.

Abstract: A vehicle air conditioner is controlled so a target control value of a pressure control valve controlling tilt angle of a swash-plate of a swash-plate type variable capacity compressor is variably controlled according to temperature deviation between target evaporator temperature and actual evaporator temperature, thereby controlling the compressor discharge capacity. Target heat discharge quantity is calculated. Target heat discharge quantity is calculated for high thermal load control or low thermal load control. The control value of the pressure control valve is compulsively controlled. Then the control value is normally controlled. The actual evaporator temperature can reach the target evaporator temperature at an initial operating stage, and temperature stability is secured.

Abstract: The compressor has a differential pressure type flow rate detector that obtains the pressure in an upstream passage and the pressure in a downstream passage to detect a refrigerant flow rate within a refrigerant passage. The detector has an accommodation chamber, and a partition body slidably accommodated within the accommodation chamber. The partition body comparts the accommodation chamber into a high pressure chamber to which the pressure in the upstream passage is introduced, and a low pressure chamber to which the pressure in the downstream passage is introduced. The compressor has an oil separator having an oil introduction passage connected to the oil separating chamber and a high pressure introduction passage introducing the pressure in the upstream passage to the high pressure chamber. The oil introduction passage introduces the oil separated from the refrigerant by the oil separator to a pressure zone other than a discharge pressure zone.

Abstract: A heat transfer system includes a water line for carrying water having a first predetermined flow direction and a refrigerant line for carrying a refrigerant and having a second predetermined flow direction opposite the first predetermined flow direction. The heat transfer system includes a refrigerant evaporator, a vapor compressor, a condenser, and an expansion device. Refrigerant is passed through the refrigerant evaporator as a liquid and is warmed to a cooled gas. The refrigerant is heated to a superheated gas in the vapor compressor, and cooled to a warm liquid in the condenser. The refrigerant is cooled to a bi-phase liquid in the expansion device and is then passed to the refrigerant evaporator. Water enters the refrigerant condenser and heat is exchanged between the refrigerant and the water to warm the water to a predetermined water temperature. The water exits the refrigerant condenser and is passed to the water storage member at a predetermined temperature.

Abstract: A cooling system and method for cooling a battery in a vehicle is provided. The method includes determining whether the cooling system is operating to cool a passenger compartment in the vehicle, operating the cooling system to cool the battery when it is determined that the cooling system is operating to cool the passenger compartment, and it is determined that at least one predetermined condition is met. The method also includes determining whether an engine in the vehicle is operating, and then operating the cooling system to cool the battery when it is determined that the engine is operating and a battery temperature is greater than a predetermined battery temperature.

Abstract: A refrigeration assembly includes a pair of refrigerated chambers defined within a working chamber. The refrigerated chambers include channel walls extending parallel to one another and spaced apart, and first and second panels extending channel walls to define a working channel for separating the working chamber into sub-chambers. Apertures defined in the panels allow airflow from the sub-chambers into the working channel, and a supply of water wets the panels and a first section of the refrigerated chambers. Air enters the sub-chambers and flows over the first sections of the refrigerated chambers for direct evaporative cooling. A portion of the air bleeds through the apertures and evaporates water from the panels prior to flowing over the second sections of the refrigerated chambers for indirect evaporative cooling.

Abstract: A monolithic air conditioner includes a cabinet, an outdoor heat exchanger mounted on a rear-inner portion of the cabinet and spaced away from a sidewall of the cabinet, a guide member attached on a rear surface of the outdoor heat exchanger, and a fan assembly disposed in the cabinet to introduce the outdoor air. The guide member has an air exhausting guide unit and an air introduction guide unit extending from the air exhausting guide section.

Abstract: A drawing method for a bare optical fiber, comprises the steps of: melting an optical fiber preform using a heating device and drawing the bare optical fiber; and naturally cooling down the bare optical fiber or forcibly cooling down the bare optical fiber by a cooling device after the heating and melting step, wherein a temperature history during the drawing the optical fiber preform to obtain the bare optical fiber in the heating device satisfies a relational expression: T??0.01X+12 where a time period when the heated and molten portion of the optical fiber preform heated and molten by the heating device reaches 1800° C. or higher is T (min) and a OH group concentration in a cladding layer of the optical fiber preform is X (wtppm).

Abstract: A double face, weft-knit textile article is shown and described. The article comprises a first fabric face and a second fabric face integrally constructed with a heat-set elastic yarn. The fabric has a fabric weight of less than about 5 oz. per square yard and is constructed to substantially reduce grin-through or transparency. In addition, the article may be a garment and may further include at least one body anchor for facilitating attachment of the garment to the wearer.

Abstract: A modular chemical delivery system is designed to be readily convertible from use with a warewashing system to use with a laundry system, or vice-versa, merely by the replacement of one chip in the controller of the system. The dispensing system is also readily expandable by adding additional satellite pumps in order to inject additional chemicals into a single washing unit, and/or to supply chemicals to additional washing units. Plug and play technology is used so that control intelligence can be distributed from the main system controller to satellite controllers, and so that additional satellite units may be readily added, identified, and properly integrated into the dispensing system.

Abstract: A system and method for monitoring clinched joints senses lateral displacement of die segments during formation of a joint, which depends on joint button diameter. The system determines whether a joint is acceptable by correlating acceptable button diameter with acceptable amount of punch advancement. A predetermined number of unacceptable joints indicates excessive punch and/or die wear.

Abstract: A grid bending machine is provided for bending a workpiece. The machine includes first and second guides having inner surfaces defining a cavity therebetween. A stationary anvil is mounted to the first and second guides. A first die is releaseably connected to the stationary anvil. A body is disposed in the cavity and is movable between a first position release position and a second bending position. A second die is releaseably connected to the body and is aligned with the first die. The second die is axially spaced from the first die with the body in the release position and is adjacent the first die with the body in the bending position.

Abstract: A system for analysing a fluid sample arranged on a test element comprises a data processing unit configured to process results of an analysis of the fluid sample arranged on the test element, an audible signal generator, and a control unit. The control unit may control the audible signal generator to generate an audible test signal that is configured to test the operability of the signal generator to audibly encode information. The audible test signal may include audible features that allow for identification of any deviation of the generated audible test signal from a correctly generated audible test signal, and/or from which malfunction of the signal generator can be detected.

Abstract: A heat switch for remote self-contained gas chromatography is disclosed. The device mechanically separates a hot or cold reservoir from the chromatography column when heating or cooling is not needed. The column needs a cooling system to obtain initial temperatures below ambient. At other times the column needs to be heated to relatively high temperatures, during which time the cooling system is preferably detached. The heat switch allows for rapid temperature changes while minimizing the peak cooling power requirement.

Abstract: A concentration sensor for detecting a concentration of a liquid reducing agent through heat transfer characteristics between separate two points is provided in a storage tank for storing a liquid supplied to an NOx reduction catalyst. When the concentration read from the concentration sensor is 0% or less, the liquid is discriminated to be water, that is, it is utilized that when water is converted to the concentration of a liquid reducing agent, it is 0%, and it is also 0% even when the concentration is reduced by convection. When the concentration is greater than a predetermined value, it is discriminated that no liquid is present, since it is considered that the output of the sensor is abnormal because of the absence of a liquid in the tank. On the other hand, when the concentration is greater than 0% and less than a predetermined value, the liquid is discriminated to be the liquid reducing agent, provided that the concentration value may include an error.

Abstract: A sheet form membrane probe, an apparatus and method, wherein the probe includes a probe body, a sheet-form membrane secured to the probe body and including an open surface exposed to the exterior of the probe; a channel formed between the probe body and the membrane through which a collector fluid can flow; an inlet port opening to the channel to conduct collector fluid to the channel; and an outlet port spaced from the inlet port such that the collector fluid passes through the channel from the inlet port to the outlet port in a flow direction substantially parallel to the membrane. The channel may be formed to provide broad surface contact of the collector fluid with the membrane. The membrane open surface may include an active area open to a sample fluid and open on an opposite side for contact with collector fluid flow in the channel. The active area may be large relative to the total membrane area to provide for an effective use of the expensive membrane material.

Abstract: An electronic device having an enclosure is disclosed. The electronic device includes a hole disposed at least partially through the enclosure. The electronic device also includes a detector configured to provide at least one visual indication after being immersed in water. The detector may include a moisture-indicating portion and a light-permitting moisture-proof membrane. The detector may be disposed inside at least one of the enclosure and the hole such that at least a portion of the detector is visible through the hole from outside of the enclosure without dismantling or opening the electronic device. The distance between the light-permitting moisture-proof membrane and an opening of the hole in the enclosure may be less than the distance between the moisture-indicating portion and the opening of the hole.

Abstract: An apparatus (10) for sensing a condition, such as humidity, through an opening (20) in a surface (12) such as a duct or wall. A housing (14) includes an outer section (16) mounted on the surface and a probe section (18) extending into the duct or wall. A circuit board assembly (32) is mounted within the housing and includes a user interface section (34) within the housing outer section and a sensor section (36) rigidly connected to the user interface section and extending into the housing probe section. The sensor section may be integrated into the circuit board assembly by a rigid connector (42) allowing easy removal and field replacement of the sensor section. A sealing device (56) isolates the housing outer section from the air within the duct or wall. A flexible grounding connection (66) provides electrical grounding of the circuit board assembly and a degree of mechanical support.

Abstract: A probe instrument having a probe that interacts with a sample surface to perform a mechanical property measurement at high speed includes a scanner producing relative motion between the sample and the probe. In addition, a probe actuator produces relative motion between the sample and the probe, in a generally vertical direction, and a controller that generates a scanner drive signal and an actuator drive signal. The probe actuator is responsive to the actuator drive signal and has an operable bandwidth of at least about 50-80 kHz to perform the fast force curve measurements. The probe actuator is preferably located at least partially on the cantilever. Moreover, feedback during normal operation may be interrupted to perform a force curve measurement with the integrated actuator.

Abstract: A method and system is provided for determining non-sensed vehicle operating parameters of a vehicle system. The method and system further provide for determining an engine air mass flow rate using the non-sensed vehicle operating parameters. A plurality of vehicle operating set-points may be determined using the non-sensed vehicle system operating parameters and the non-sensed engine air mass flow rate. A controller may use the vehicle operating set-points in order to control emissions of the vehicle system.

Abstract: Method for determining the load condition of a vehicle (60) moving at non-zero speed, the vehicle being equipped with a plurality of tire-wheel assemblies (41-42, 51-52) mounted on at least two axles and with devices that enable determination of the vehicle's speed and the rotation frequencies or speeds and actual inflation pressures of at least two tire-wheel assemblies mounted on two different axles of the vehicle, the method comprising the following stages: (A) determination of the inflation pressures and rotation frequencies of two tire-wheel assemblies mounted on two different axles; (B) calculation of the load difference between the two tire-wheel assemblies from the vehicle's speed and the rotation frequencies of the two tire-wheel assemblies, taking into account the actual inflation pressures; (C) determination of the load condition by comparing the calculated load difference with at least one predetermined threshold.

Abstract: This device has a detection means to measure the relative amount of air movement in its vicinity. The detection means is coupled to a processing means for creating a variable trigger signal that is proportional to detected air movement. The detection means consists of a differential pressure transducer mounted inside a specially-shaped enclosure. The pressure transducer is arranged to measure the air pressure difference between two holes in the enclosure. The shape of the enclosure causes air to flow at different velocities near the holes, creating a differential air pressure. The processing means consists of a microprocessor that periodically samples the signal from the differential pressure transducer. A programmed algorithm calculates a variable trigger signal value based on a plurality of sampled signals. The processing means can also incorporate an algorithm for digitally generating audio signals that have attributes based on the value of the trigger signal.

Abstract: A raindrop detection device includes a first fixing member which is fixed to a windshield and has a first engagement portion, an inner housing in which a detection unit is accommodated, an outer housing in which the inner housing is accommodated and which is fixed to the inner housing, a second fixing member having a second engagement portion which is detachably engaged with the first engagement portion of the first fixing member, and a leaf spring which is engaged with the inner housing to press and bias the inner housing toward the windshield. The second fixing member has a leaf-spring biasing portion, which contacts the leaf spring to elastically bias the leaf spring toward the windshield at a predetermined pressing force.

Abstract: A thermal flow sensor can adjust the temperature of a heating element in a highly precise and reliable manner with the use of simple circuits, devices and process steps. The sensor includes an amplifier section (7) that amplifies a voltage across opposite ends of at least one of resistors (3, 4, 5) that constitute a bridge circuit, a current control section (9) that is controlled based on an output voltage of the amplifier section (7), and an output terminal (14) that is connected to one end of a heating element (1) that is controlled to be energized by the current control section (9). The amplifier section (7) includes an amplification factor control section for controlling an amplification factor by an electric signal from a computer, and uses an output voltage which has been amplified and impressed to an input voltage to an operational amplifier (8).

Abstract: A residual liquid quantity detecting method capable of accurately detecting the residual quantity of liquid without relying upon visual observation, preventing overfill at the time of refilling. A residual liquid quantity detecting method for a liquid supply container (100) has a container body (108) having a liquid supply opening (126) and has a liquid storage chamber (118) in which liquid (119) is sealed, the liquid storage chamber (118) being formed in the container body (108) and communicating with the liquid supply opening (126). The liquid (119) is supplied from the liquid supply opening (126) to the outside of the container by primary supply pressure generated through reduction, by pressure, in volume of the liquid storage chamber (118). The residual quantity of the liquid (119) in the liquid storage chamber (118) is detected by detecting primary supply pressure of the liquid (119).

Abstract: A liquid level sensor system actuated by a column pressure includes a hollow member having a distal open end adapted to be positioned into a liquid reservoir to a depth below a liquid surface level, and a sensor head unit. The sensor head unit is responsive to the column pressure to provide an indication of a liquid level in the reservoir. A low liquid level alarm circuit is responsive to the bellows member to generate a signal indicative of a low liquid level state.

Abstract: A fuel cap operable to close an opening of a fuel tank. The fuel cap includes an outer shell having a protrusion and a shell locking member. The fuel cap includes a detection mechanism for sensing a level of fuel within the tank. The fuel cap further includes an assembly component engageable with the outer shell to support the detection mechanism on the outer shell. The assembly component defines a groove operable to receive the protrusion. Additionally, the assembly component includes a component locking member. The outer shell and the assembly component are engageable with one another by a relative axial movement followed by a relative rotational movement about an axis. Once engaged, the outer shell and the assembly component are fixed against disengagement by engagement of the shell locking member and the component locking member.

Abstract: An adjustable measuring device for measuring contents, such as liquids and granulated solids, having a usable volume for measuring. The adjustable measuring device includes a housing, a platform having a lower position and an upper position, and an adjusting system for moving the platform between the lower position and the upper position. When the platform is in the lower position, the usable volume is maximized. When the platform is in the upper position, the usable volume is minimized. The adjusting system comprises a restraint system adapted to maintain the platform between the lower position and the upper position. Also, the adjusting system comprises a discrete locking system adapted to temporarily lock the platform into a plurality of predetermined positions, which represent discrete usable volumes. By applying a first adjusting force, the platform moves toward the upper position. By applying a second adjusting force, the platform moves toward the lower position.