| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 340612000 | Material level | 87 |
| 20080218363 | ELECTRIC GENERATOR PROTECTION SYSTEM - A protection system for an electric generator includes a fluid sensor to measure a fluid level in a fuel tank, an indicator lamp to display the fluid level, a timer to measure a time interval beginning in response to a low fuel signal from the fluid sensor and a low fuel switch to shut off the electric generator at the end of the time interval. | 09-11-2008 |
| 20090085757 | Fluid level warning system for vehicle - A fluid level sensor for generating a warning upon, e.g., low fuel conditions in a vehicle gas tank. A vacuum conduit is disposed in the tank. The vacuum conduit has first and second vacuum openings and an actuation opening into which the fuel pump can pump fluid through a Venturi conduit to induce a vacuum. A first conduit extends from the first vacuum opening to a vacuum sensor outside the tank and a second conduit extends from the second vacuum opening. The second conduit extends down into the tank and terminates in an open end. When fluid in the tank drops below the opening the vacuum sensor senses a change in vacuum in the tank, triggering a low level alarm. | 04-02-2009 |
| 20090096619 | Breathing gas supply visual broadcast apparatus - A gas measurement apparatus can comprise a sensor and a processor, in an example. The sensor can measure a pressure condition of a gas tank, in an example. The processor can select at least one light source, the light source can be positioned or of a distinct color to indicate a corresponding level of gas remaining in the tank when illuminated. The level of gas can be based on the measured pressure. | 04-16-2009 |
| 20100039272 | VARIABLE HEIGHT BIN LEVEL SENSOR FOR USE WITH A PRODUCT DISPENSING AGRICULTURAL IMPLEMENT - A fill level sensor is magnetically coupled to a hopper of an agricultural implement to provide a signal indicative of product fill level in the hopper relative to a fill line. The sensor can be positioned at various heights to provide variability in the height of the sensed fill line. The fill level sensing components are contained within a sensor housing. A magnet for magnetically mounting the sensor may be coupled to an exterior surface of the sensor housing or enclosed within the sensor housing. | 02-18-2010 |
| 20110181426 | WIRELESS FUEL LEVEL SENSOR FOR A VEHICLE FUEL TANK - A vehicle fuel tank is provided. The vehicle fuel tank includes a housing defining an interior region, a fuel level sensor coupled to the interior region, the fuel level sensor responsive to a fuel pressure, and a radio frequency identification (RFID) device electronically coupled to the fuel level sensor configured to wirelessly transmit a signal indicative of a fuel level in the fuel tank. | 07-28-2011 |
| 20110304468 | FLUID VOLUME ALARM SYSTEM - A fluid volume alarm system is presented. The alarm system has a container for storing fluid, and alarm module coupled to the container for notifying a user or observer that the fluid within the container has reached a predetermined level. The container has at least one exterior wall and defines an interior volume for at least temporary storage of fluid. In one aspect, there are at least two electrodes disposed on an interior portion of the exterior wall of the container and positioned at a position thereon an interior portion of the exterior wall corresponding to a predetermined fluid level at which it is desirable to receive an alarm. The system also has an alarm module configured to alert the practitioner that the fluid has met or has exceeded the predetermined level. | 12-15-2011 |
| 20120112919 | Dust Level Sensor Arrangement for Dust Collection System - A level detector or sensor for a dust collection system has a threaded housing that seats in a penetration in the lid of a dust collection drum or other container, and can be adjusted mechanically in its mounting. The sensor has an adjustment to control the distance at which it picks up light off the collected material. An elongated flexible cable connects the sensor with an alarm strobe, which may be a low-power LED device, and can be positioned at a convenient location remote from the drum. | 05-10-2012 |
| 20120119916 | Fuel Usage Monitoring - Various methods and systems are provided for monitoring fuel usage and/or remaining run time of backup power sources. In one embodiment, a method includes tracking run time of a backup power source; determining a current fuel level associated with the backup power source; and providing a fuel level warning. In another embodiment, a system includes a fuel monitoring system including logic that obtains a current run time corresponding to a backup power source; logic that determines a current fuel level based at least in part upon the current run time, the current fuel level corresponding to a fuel source supplying the backup power source; and logic that provides a fuel level warning based upon the current fuel level and a predefined fuel level threshold. | 05-17-2012 |
| 20120139735 | VENDING MACHINE - A vending machine has at least one sensor to record at least one capacitive variable. The at least one sensor is formed as a wireless signal transmission chip, particularly a RFID chip (Radio Frequency Identification). Thus, a particularly precise and reproducible record of measurement results is possible, while permitting reduced cabling needs in view of the wireless signal transmission. | 06-07-2012 |
| 20130002439 | METHOD OF INDICATING OPERATIONAL INFORMATION FOR A BULK DISPENSING SYSTEM - A method of determining the number of doses and the types of a treating chemistry available in the bulk dispensing system, and providing an indication of the determination on a user interface. | 01-03-2013 |
| 20130038455 | SYSTEM EFFECTIVE TO MONITOR AN AMOUNT OF CHEMICALS IN PORTABLE CONTAINERS - A system and method effective to monitor an amount of material in a portable container. The system may comprise a material and sensor in a container. The sensor is effective to detect a first level of the material when the container is at a first location and to generate a first data signal in response. The sensor is effective to detect a second level of the material in the container when the container is at a second location and to generate a second data signal in response. The sensor is further effective to send the first and second data signal to a processor. The processor is effective to receive the first and second data signal and generate a report based on the first and the second data signal, the report relating to an amount of the material in the container. | 02-14-2013 |
| 20130222143 | SHELF ARRANGEMENT FOR FLUID DRAINAGE - Discussed herein is a shelf assembly that allows efficient discharge and collection of fluids out of fluid containers. In embodiments, the shelf assembly includes one or more racks that allow for placement of fluid containers in an inverted position. The shelf assembly further includes a collecting tray adjacent to (e.g., below) each rack to collect the fluids dripping out of the racks. The collecting tray discharges the fluids from the tray to a discharge station via outlets and/or connecting spouts. The discharge station allows for collection of the discharged fluids and subsequent disposal of the discharge. Such disposal is in accordance with EPA or other local regulations. | 08-29-2013 |
| 20130249697 | Hydration alert - One aspect of the invention is an apparatus including an alarm for alerting an operator to recharge a humidifier, wherein such alarm is generated other than through the use of a humidity sensor. In one embodiment the total work performed during heating and hydrating an insufflation gas is measured and an alarm generated when the total work performed exceeds a particular threshold. In another embodiment, a flow meter is used to measure the total flow of insufflation gas so that when the total flow of insufflation gas reaches a predetermined level an alarm is activated. | 09-26-2013 |
| 20130314234 | METHOD FOR WARNING OF RESIDUAL AMOUNT OF LIQUID DETERGENT - A method for warning of a residual amount of liquid detergent includes: calculating a total use amount of liquid detergent by adding up a use amount of liquid detergent whenever a washing process is performed; and comparing the total use amount of liquid detergent to a reference amount, and warning of a residual amount of liquid detergent according to the comparison result. Accordingly, a user does not need to frequently check the residual amount of liquid detergent, and may easily fill up a container with the liquid detergent. Furthermore, since a sensor for sensing the residual amount of liquid detergent is not installed, it is possible to reduce the manufacturing cost of the washing machine and to prevent a user from getting an electric shock from a current leaking to the container. | 11-28-2013 |
| 20160171870 | SYSTEM TO MONITOR AN AMOUNT OF MATERIAL IN A CONTAINER | 06-16-2016 |
| 20160253896 | SYSTEM TO MONITOR AN AMOUNT OF MATERIAL IN A CONTAINER | 09-01-2016 |
| 340613000 | Weight in container | 3 |
| 20080204261 | Balanced salt solution alarm - An inexpensive, audible alarm to alert the surgeon when the level of Basic Salt Solution (BSS) falls dangerously low during a cataract surgical procedure. A digital weight gauge is suspended from the BSS pole of the phacoemulsification unit. The BSS bottle is suspended from the weight gauge. As the BSS leaves the bottle, the weight of the bottle decreases. When the digital weight gauge reaches a predefined minimum weight, an audible alarm is activated. The alarm may be provided with an on/off switch so that the alarm may be deactivated when it is not in use. The weight gauge may also have a programmable setting to adjust to the surgeon's preference for timing of notification. | 08-28-2008 |
| 20110205074 | IV infusion monitoring device - An IV infusion monitoring device is provided to measure and to display, during whole infusion process, the liquid level data including the weight of remaining medical liquid in an IV bottle, the liquid flow rate and the remaining time from the completion of an IV infusion process. It also gives alarm as the medical liquid in an IV bottle drops to a predetermined low level. The IV infusion monitoring system comprises an electric load sensor, a signal processor, a monitor terminal and a power provided preferably by a battery. The load sensor measures the weight of the medical liquid in the IV bottle. The measured signal is then transmitted to the signal processor for processing and generating the liquid level data, which are then sent to the monitor terminal for display. The monitor terminal can also generate an alarm if the liquid level drops to the predetermined value. Furthermore, the monitoring device combines with a server and a plurality of PDA devices to form a communication network so that a nurse can monitor the IV infusion process from a remote location. | 08-25-2011 |
| 20150061876 | Warning Device For Infusion Apparatus - A warning device for an infusion apparatus is installed at between a drip stand and a drip bottle, and the warning device includes an alarm module, a setting interface, a measurement module and a control module. The alarm module used to warn, the setting interface provides a total pharmaceutical dosage value, the measurement module measures the weight of the drip bottle with dosage to generate an original voltage value, and the control module connects with the alarm module, the setting interface and the measurement module respectively to read the total pharmaceutical dosage value and the original voltage value and to alarm by the alarm module. Therefore, the warning device solves the compatibility problem and able to apply in all kind of drip bottles such that the work loading and burden for the staff and the quality of medical care of the medical facility can be improved. | 03-05-2015 |
| 340614000 | Pressure | 8 |
| 20080198026 | Warning System - Warning system for a SCUBA diving apparatus that emits a first visible indication when the pressure in the tank falls below a first predetermined level and a second visible indication when the pressure in the tank falls below a second predetermined level which is lower than the first predetermined level. The warning system ( | 08-21-2008 |
| 20100171624 | REMOTE MONITORING OF FLUID CONTAINERS - Apparatus for remote inspection of oxygen containers includes an electronic circuit in communication between each container (or at various locations along a pipeline) and a remote central station. The electronic circuit is adapted to issue a signal to the remote central station that includes information about predetermined internal and/or external conditions such as the level of oxygen stored in the tank, a pressure condition of material stored in the tank, a lack of presence of the tank in an installed position, or the presence of an obstruction restricting access to the tank. | 07-08-2010 |
| 20110025512 | DEVICE AND METHOD FOR MEASURING MATERIAL LEVEL IN BIN - A bin level monitoring system uses one or more monitoring devices ( | 02-03-2011 |
| 20110227742 | METHOD FOR MEASURING REMAINING HYDROGEN CAPACITY OF HYDROGEN STORAGE CANISTER INCORPORATING RFID DEVICE - A method is provided for measuring remaining hydrogen capacity of hydrogen storage canister incorporating tag information. An information identification tag is attached to a hydrogen storage canister. The information identification tag contains therein at least one record of tag information indicating the hydrogen storage quantity of the hydrogen storage canister. Once the hydrogen storage quantity is read from the tag information of the information identification tag and hydrogen consumption quantity supplied from the hydrogen storage canister is detected, the hydrogen storage quantity is operated by subtracting the hydrogen consumption quantity therefrom to calculate a hydrogen residue, which is then used to update the tag information of the information identification tag or is stored for subsequent use. | 09-22-2011 |
| 20120280816 | REFRIGERANT CHARGE LEVEL DETECTION - A system includes a first sensor that provides an output indicative of a sensed temperature of a liquid refrigerant line that is within or extending from an outlet of a condenser coil of an air conditioner or heat pump unit. The system includes a second sensor that provides an output indicative of a sensed pressure in the liquid refrigerant line. A controller is configured to determine at least one target pressure value from the output indicative of the sensed temperature of the liquid refrigerant line. The controller is configured to determine if the level of refrigerant charge is at, above or below an acceptable level based on a comparison of the output indicative of sensed pressure to the at least one target pressure value. The system includes a display that displays an indication of whether the level of refrigerant charge is at, above or below an acceptable level. | 11-08-2012 |
| 20130285822 | Refrigerant Charge Level Detection - An exemplary embodiment of a system includes first and second sensors. The first sensor is operable to provide an output indicative of a sensed refrigerant liquid temperature of a liquid refrigerant line that is within or extending from an outlet of a condenser coil of an air conditioner or heat pump unit. The second sensor is operable to provide an output indicative of a sensed refrigerant liquid pressure in the liquid refrigerant line. A controller is configured to determine at least one target pressure value from the output indicative of the sensed refrigerant liquid temperature of the liquid refrigerant line. The controller is configured to determine if the level of refrigerant charge is at, above, or below an acceptable level based on a comparison of the output indicative of sensed refrigerant liquid pressure to the at least one target pressure value. | 10-31-2013 |
| 20140167970 | Refrigerant Charge Level Detection - An exemplary embodiment of a refrigerant charge monitoring system includes first and second sensors. The first sensor is operable for sensing temperature of a liquid refrigerant line that is connected to, within, or extending from an outlet of a condenser. The second sensor is operable for sensing pressure of the liquid refrigerant line. A controller is configured to determine at least one target pressure value from the sensed temperature of the liquid refrigerant line. The controller is configured to determine if the level of refrigerant charge is at, above or below an acceptable level based on a comparison of the sensed pressure of the liquid refrigerant line to the at least one target pressure value. | 06-19-2014 |
| 20140354437 | EMERGENCY EQUIPMENT POWER SOURCES - Energy harvesting devices provide power to devices of emergency equipment stations (e.g., fire extinguisher station, fire alarm pull station, defibrillator station, etc.) distributed throughout a facility to monitor one or more internal or external conditions (e.g., identifiable objects detected near the station, presence of an obstruction restricting access to the station, etc.) and relay information about the monitored conditions to a central station. | 12-04-2014 |
| 340615000 | Moving sensor (e.g., impeller) | 1 |
| 20110163883 | Drinking-Water Level Alarm Lamp - A drinking-water level alarm lamp for being placed in a water feeder is disclosed. The drinking-water level alarm lamp includes a watertight casing including therein a lamp, a rolling ball tilt switch, a battery and a weight. When the water feeder contains drinking water, the drinking-water level alarm lamp half floats above the water in virtue of inner space of the watertight casing and the weight. When the water feeder contains no drinking water, the drinking-water level alarm lamp lies at a bottom of the water feeder. The drinking-water level alarm lamp uses presence and absence of the drinking water in and from the water feeder to change a position of the drinking-water level alarm lamp, so that the rolling ball tilt switch in the drinking-water level alarm lamp is accordingly switched to turn on or off the lamp. | 07-07-2011 |
| 340616000 | Overflow | 1 |
| 20130314235 | Sewer Backup Alarm - This system will alert an occupant of a backup in the sewer or septic system and could be used in a residential or commercial structure. The system is affixed to a sewer waste line and includes a float device and a wireless alert device. When a backup occurs, the float will lift and break the magnetic connection between a magnet connected to the float and a sensor on the wireless alert device. This, in turn, will cause a chime or other alarm device to activate inside the structure, alerting the occupant of a backup. The alarm will enable the occupant to turn off or not use any items which use running water until the problem is resolved. | 11-28-2013 |
| 340617000 | Pulverant material (e.g., bin) | 2 |
| 20090207032 | Method to detect the level of granular material in a bin - Apparatus and systems for a novel apparatus for determining the level of granular material in a bin. The invention comprises methods and apparatus to detect when a sensor is covered by granular material. | 08-20-2009 |
| 20110199221 | HARVESTER BIN SENSOR - A harvester grain bin monitoring system is disclosed. The system includes a sensor that monitors the perimeter of the bin proximate to the top rim to provide a warning to an operator when the grain level reaches approaches the bin rim. The sensor may be optical or mechanical. | 08-18-2011 |
| 340618000 | Liquid | 56 |
| 20090058666 | TANK FLUID LEVEL MONITOR AND INDICATOR - A device and system for monitoring a fluid level within a tank and for indicating when the fluid level within the tank has dropped below a predetermined minimum level. The device includes a strobe light, which is switched on when a sensor determines that the fluid level within the tank has dropped below a predetermined level. The flashing strobe light can be viewed during the day and at night from any viewing angle, and can thereby alert an observer that the tank needs to be filled before the tank becomes empty. | 03-05-2009 |
| 20090243863 | Intrinsically Safe Cellular Tank Monitor For Liquified Gas and Cryogenic Liquids - An intrinsically safe cellular tank level monitor for use with consumer LP storage tanks is provided. The cellular monitor is adapted to read the LP storage tank gauge and transmit the level information through a cellular network to a data center. The data center may be part of or may communicate with a fuel delivery service company serving the residential consumer. The cellular monitor is a smart device that allows two-way communication over the cellular network. Control logic within the cellular monitor controls transmission of data to the data center as well as the determination and transmission of alarm conditions as determined by the local cellular monitor. | 10-01-2009 |
| 20090322545 | Syringe Content Detection Using RF Energy - The present invention includes medical fluid injector systems that detect the contents and/or volume of such contents within a syringe of the system. For example, an RF signal from a first antenna of a medical fluid injector may be transmitted through a syringe associated with the medical fluid injector. At least some of the transmitted RF signal may be received by a second antenna of the medical fluid injector An amount of the RF signal received by the second antenna may be measured to provide information regarding the contents and/or volume of such contents within the syringe. | 12-31-2009 |
| 20100001867 | DEVICE, SYSTEM AND METHOD FOR MONITORING TANK CONTENT LEVELS - The present invention is directed to a system for determining content level in a fluid holding tank and requesting refills. One embodiment of the system comprises a magnet that produces a magnetic flux around a housing for an existing content level gauge, a Hall Effect sensor transmitter unit disposed on the housing and having at least one current detecting loop therein for detecting any variation in a magnetic field created by the magnet, and a metal content level gauge disposed within the housing. The degree of variation corresponds to a measured content level as indicated by a position of the metal content level gauge. The system further comprises a base station receiver transmitter unit for receiving a signal from the Hall Effect sensor transmitter unit and forwarding that signal to a remote registry. | 01-07-2010 |
| 20100052920 | ALARM SYSTEM FOR BATHTUB - Disclosed is an alarm system for a bathtub configured to alert ascension of water up to a predetermined level in the bathtub. The alarm system comprises a sensing device configured at a predetermined level on a sidewall of the bathtub and a detector communicably coupled to the sensing device. The sensing device is adapted to generate an electrical signal upon ascension of water in the bathtub up to the predetermined level. The detector is adapted to be activated by the electrical signal generated by the sensing device to generate an alert. | 03-04-2010 |
| 20100085198 | IMMERSION DETECTION METHOD, SYSTEM, AND PROGRAM PRODUCT - A fluid detection system comprises a liquid sensor, an air pump and an atmospheric pressure sensor encased within an air and water permeable casing defining an enclosed air space. The pressure sensor acquires pressure samples within the casing, the air pump expelling additional gas into the casing. In response to determining a flood-status or a non-flood-status state of the fluid detection system and comparing the samples, a failure of the fluid detection system or an immersion of the fluid detection system in fluid is determined. In some embodiments, failure is determined if a second sample is greater than a first sample in a non-flooded state, and in others immersion is determined if a second sample is greater than a first sample value and the determined state is flooded. In some examples, gas is expelled across a liquid detection surface and a third sample value is acquired. | 04-08-2010 |
| 20100097231 | Process and System for Measuring Liquid Volumes and for Controlling Pipetting Processes - The instant invention provides a methods and a system for measuring liquid volumes and controlling a pipetting process. | 04-22-2010 |
| 20100117842 | Contaminant Detection Unit - Apparatuses and methods are provided for detecting contaminant in a fuel system, such as a fuel system of an internal combustion engine. The apparatus includes a fuel filter which includes an upper unit having an inlet port and an outlet port, and a closeable vent. A lower unit is releasably mounted to the upper unit and includes a contaminant collection zone and a contaminant detection sensor made up of a probe and a board with a microprocessor for detecting contaminant collecting in the collection zone within the lower unit. At least one indicator is provided for producing an alarm condition in a response to receiving a signal from the sensor. | 05-13-2010 |
| 20100214106 | METHODS, APPARATUSES, AND COMPUTER PROGRAM PRODUCTS FOR MONITORING A VOLUME OF FLUID IN A FLEXIBLE FLUID BAG - A method, apparatus, and computer program product are provided for monitoring a volume of fluid in a flexible fluid bag. A flexible fluid bag according to the invention may include a first and second side wall opposing each other, an outlet through which fluid contained in the fluid bag is evacuated, a signaling tag carried by the first side wall, and an inducer carried by the second side wall. The signaling tag and inducer may be positioned such that when a volume of fluid in the fluid bag is less than a predefined threshold, the signaling tag and inducer come into sufficient proximity due to flexation of at least a portion of the sidewalls of the fluid bag as fluid is evacuated from the fluid bag to trigger a state of a signal emitted by the signaling tag to change. | 08-26-2010 |
| 20100231393 | LIQUID LEVEL SENSOR - A liquid level sensing device for sensing liquid in a container. The liquid level sensor has a housing with a power source and an alarm. A first reference surface is positioned on the housing and cooperates with a top surface of a container when the liquid level sensor is initially positioned on the container. A sensor extends from the first reference surface. A positioning member is provided on the liquid level sensing device and cooperates with the container to provide a reference to allow the liquid level sensing device to be accurately moved from the initial position to other predetermined positions relative to the container to allow a user to fill the container with one or more liquids to the desired level. A reservoir portion may be provided on the liquid level sensing device for storing and dispensing a liquid. | 09-16-2010 |
| 20100259397 | LIQUID LEVEL DETECTING DEVICE AND SAMPLE APPLYING SYSTEM - Various embodiments disclose a liquid level detecting device and method, which comprises: a control unit configured to output control instructions corresponding to environmental information according to the environmental information of a location of a sampling needle; an amplifying unit configured to set a gain according to the control instructions; a converting unit configured to receive and convert a capacitance signal from the sampling needle to a voltage signal; the amplifying unit receives the voltage signal and amplifies the voltage signal according to the gain; the control unit receives the amplified voltage signal and compares the amplified voltage signals with a preset voltage threshold to determine whether the sampling needle contacts the liquid level. Some embodiments further disclose a sample application system. Various embodiments consider both sensitivity and reliability of a detection system and is adaptable to various detection environments. | 10-14-2010 |
| 20110001624 | Pressure sensing systems - A sensing system for sensing the level of liquid in a container and for providing an indication of the pressure within the container includes a magnetic member arranged for movement relative to a pneumatic switch operated by the presence or absence of a magnetic field. Spring means act on the magnetic member and urge it towards a first operative position. A weight is suspended from the magnetic member and the weight is positioned, in use, within the liquid in the container such that, when the level of liquid in the container falls to a predetermined level, the magnetic member is caused to move from its first operative position into a second operative position. The system further includes a manually displaceable member that is movable against the action of the pressure within the container and is movable by the pressure within the container when the pressure within the container exceeds a predetermined value. | 01-06-2011 |
| 20110018724 | Sensor for detecting water level for watercraft trailer - A device system includes a transmitter assembly and a receiver assembly. The transmitter assembly includes a frequency transmitter having an antenna and a first plurality of electrically conductive elements. The receiver assembly includes a frequency receiver having an antenna and an annunciator. Immersion of at least a portion of each of the first plurality of conductive elements in water causes the frequency transmitter to transmit a frequency via its antenna to the antenna of the frequency receiver, thereby causing a first annuciation by the annunciator. | 01-27-2011 |
| 20110074589 | DIAGNOSTIC SYSTEM AND METHOD FOR HOME APPLIANCE - A diagnostic system and method for a home appliance is provided. When the home appliance outputs product information as a sound signal, a service center remotely performs fault diagnosis of the home appliance by receiving the sound signal, detecting the product information from the sound signal, checking the state of the home appliance using diagnostic data included in the product information to determine whether the home appliance is out of order, diagnosing, when water supply malfunction including a water supply error or a water level sensor error has occurred, a cause of the water supply malfunction, and deriving a solution to the water supply malfunction. Upon deriving a diagnosis result through the fault diagnosis of the home appliance, the service center immediately notifies the user of the diagnosis result and may dispatch a service technician or may provide the user with a solution to allow the user to easily fix the fault without dispatching a service technician. | 03-31-2011 |
| 20110175740 | LIQUID LEVEL MONITORING SYSTEM - A liquid level monitoring system is configured for a wood-stemmed plant in which the stem is receivable by a reservoir configured to hold a liquid. The system includes a housing attachable to the stem of the plant. The housing may include an aperture for receiving some of the liquid in the reservoir. A circuit board is coupled to or positioned within the housing and includes a microprocessor. A sensor may be located within the housing or attached externally thereto. The sensor is operable to transmit a signal to the processor when the sensor becomes exposed primarily to air instead of the liquid in the reservoir. And, an indicator is in communication with the processor to provide at least one human perceptible signal that correlates with a liquid level in the reservoir. | 07-21-2011 |
| 20120068849 | System and Method for Optically Detecting Low Liquid Level Condition - A system and method for remotely determining a liquid level condition within a tank includes a liquid level gauge connectable to the tank, a dial assembly associated with the liquid level gauge and an optical transceiver for determining a reflectivity of the dial assembly. The dial assembly includes a reflective layer, a blocking layer positioned over the reflective layer for blocking at least a portion of the reflective layer, and a disk that is magnetically coupled to the liquid level gauge. One of the reflective and blocking layers is associated with the disk for rotation therewith. The optical transceiver is positioned for projecting radiant energy toward the reflective layer and detecting the presence or absence of reflected radiant energy and for generating a signal indicative of a low liquid level condition within the tank when at least a substantial portion of the reflective layer is covered by the blocking layer or when a failure occurs in the system to thereby provide a fail-safe mode of operation. | 03-22-2012 |
| 20120126990 | FLOOD PROTECTION APPARATUS AND CONTAINER DATA CENTER INCLUDING THE SAME - A flood protection apparatus includes an adjustable base, a first water level detector, and a controller. The adjustable base supports the container and is operable to adjust a height of the container. The first water level detector is mounted on the base. When the first water level detector detects water has reached the first level, the first water level detector outputs a first detection signal. The controller receives the first detection signal to activate the base to heighten the container, until the first detection signal ceases or the base is at a highest point. | 05-24-2012 |
| 20120229284 | SENSOR DEVICE FOR USE IN CONTROLLING IRRIGATION - Methods and apparatus are provided herein for sensing rain fall for use in irrigation control. In one embodiment, a wireless rain sensor comprises a housing at least partially covering a first sensor, a controller and a wireless transmitter. The first sensor comprises a moisture absorptive material located to be contacted by rain fall and configured to expand in response to the contact with the rain fall and contract in response to an absence of the rain fall. The controller is coupled to the first sensor and configured to output signals corresponding to a variable amount of expansion and contraction of the moisture absorptive material. The wireless transmitter is configured to transmit wireless signals, at least one wireless signal comprising data corresponding to the variable amount of expansion and contraction of the moisture absorptive material. | 09-13-2012 |
| 20120326880 | Low Oil Indication - A method of indicating low oil level of lubrication oil for a gas turbine engine automatically eliminates false low oil readings due to temperature-induced lubrication oil shrinkage and operation-induced changes in lubrication oil level. | 12-27-2012 |
| 20130027210 | OIL LEVEL MEASUREMENT SYSTEM AND METHOD - The present invention provides a method of determining if a fluid level in a transmission is satisfactory. The transmission includes a controller and is coupled to a powered vehicle. The method includes measuring a grade of the surface upon which the vehicle is positioned with an inclinometer and measuring the fluid level in the transmission with a fluid sensor. The method also includes communicating the measured grade and measured fluid level to the controller and determining a fluid level threshold based on the measured grade. The measured fluid level and fluid level threshold are compared and a determination is made if the measured fluid level is satisfactory based on the comparison. | 01-31-2013 |
| 20130201023 | DRAINAGE CIRCUIT FOR DRAINING LIQUID COMING FROM A POWER PLANT OF A ROTORCRAFT, THE CIRCUIT INCORPORATING AN APPLIANCE FOR MONITORING AN EXCESSIVE FLOW OF THE LIQUID - The invention relates to a drainage circuit ( | 08-08-2013 |
| 20130271284 | High Water Warning Device - A warning device to warn of a high water level may include a liquid level sensor to detect the high water level, a warning sign to provide a visible warning in response to the liquid level sensor detecting the high water level and a solar panel to power the liquid level sensor and the warning sign. The liquid level sensor may include a optical switch. The liquid level sensor may include a phototransistor. The liquid level sensor may include an LED light source. The solar panel may be connected to a battery. | 10-17-2013 |
| 20140159906 | LIQUID LEVEL SYSTEM WITH BLOWDOWN FEATURE - The present invention provides a liquid level system with a blowdown feature. | 06-12-2014 |
| 20140266745 | Portable Fluid Level Alarm System - A portable solar-powered fluid level alarm system which uses a fluid level sensor electrically connected to electronic controls in a control box. The control box is mounted on an elongated member extending from a base which holds the system upright. The electronic controls within the control box operate up to four different alarms, including an audio alarm, a visual alarm, a remote notification signal via a global positioning system (“GPS”), and a remote notification signal via Voice over Internet Protocol (VoIP). The alarm system is also a keyed system so that once an alarm sounds only authorized personnel may deactivate it. | 09-18-2014 |
| 20140354438 | Device and Method for Monitoring Fluid Consumption - A device and method for monitoring the removal or consumption of fluid from a container. The device has a housing with an attachment means on one side for affixing the device to a fluid container and a plurality of electrical components environmentally protected within the housing. The electrical components include a display screen having a length about the height of the container, a keypad, a timer and a processor. All of the electrical components are powered by and connected to a power source. The processor contains computer instructions that when activated indicate on the display screen the level of fluid that should have been removed or consumed based on the time since activation. This provides the user with information for monitoring fluid consumption. | 12-04-2014 |
| 20150102933 | SERVICE DISPLAY SYSTEM FOR A MACHINE - A service display system for a machine with an out-board service area is disclosed. The service display system indicates a plurality of fluid levels within a plurality of fluid reservoirs, corresponding to respective one of a plurality of sub-systems. The service display system includes a port relay board disposed within the out-board service area. The port relay board includes a plurality of fluid fill ports that correspond to one of the plurality of fluid reservoirs. The port relay board includes a first indicator and at least one second indicator disposed within proximity of the plurality of fluid fill ports. The first indicator is adapted to communicate at least one fluid level of the at least one of the plurality of fluid reservoirs. The at least one second indicator is adapted to visibly indicate an inclination position of the machine. | 04-16-2015 |
| 20150300865 | SUBSTRATE PROCESSING APPARATUS - The amount of processing liquid consumed from the processing liquid in the tank is calculated based on the history of opening and closing events of one or more of the valves, and that the anomaly detection controller of the substrate processing apparatus generates a level sensor failure alarm if the calculated amount of consumed processing liquid has increased beyond a state transition liquid consumption amount and yet the level sensor has not switched from the first state to the second state. The substrate processing apparatus and the level sensor are designed so that the level sensor switches from the first state to the second state when the calculated amount of consumed processing liquid has increased beyond the state transition liquid consumption amount. | 10-22-2015 |
| 20150379854 | METHOD OF DATA COMMUNICATION WITH MULTIPLE LIQUID LEVEL DETECTION SENSORS CONNECTED TO A CENTRAL PROCESSING UNIT, AND LIQUID LEVEL DETECTION SYSTEM - A method of data communication with a selected sensor of multiple liquid level detection sensors connected to a central processing unit includes the steps of: a) transmitting by the central processing unit directly or indirectly a communication signal to the selected sensor of the series of multiple sensors, b) upon receipt of the communication signal by the selected sensor, processing the communication signal in the selected sensor. A liquid level detection system, in particular a liquid overfill prevention system for multi compartment liquid tank trucks, includes two or more liquid level detection sensors, preferably arranged in series, and a central processing unit, where at least one of the two or more sensors includes a sensor processing unit comprising a storage unit. | 12-31-2015 |
| 20150379855 | REMOTE MONITORING OF TOTAL LIQUID INTAKE - A server system for remote monitoring includes a wireless communication interface, a processor, and a storage device. The wireless communication interface receives at least one data packet over wireless communications from a remote monitoring system. The processor processes the data packet including sensor information from a sensor coupled to the remote monitoring system. The storage device stores the sensor information. | 12-31-2015 |
| 20160176694 | SYSTEM AND METHOD FOR BEVERAGE DISPENSER ALERT | 06-23-2016 |
| 20160377474 | WIRELESS OIL TANK LEVEL REPORTING DEVICE, SYSTEM AND METHOD - A remote level sensor for a residential fuel oil tank is adapted for a fuel oil gauge with a permanent magnet which changes position with changing fluid levels in the tank. The sensor and gauge cylinder are integral so as to align with a magnet on the indicator of the gauge. The sensor is connected a remote monitoring website on the internet by means of a radio connection to a local area network. The sensor has multiple magnetic sensors each in a different relative position. The sensors detect the position of the magnet when the magnet is within a certain distance. Several sensors may detect the magnet and each sensor's output will be proportional to the magnet's distance from it. Two or three sensor outputs are sufficient to interpolate the absolute position of the magnet and thus the fuel oil level in the tank. The controller has a scanning routine that samples the sensor outputs periodically and formats the data into an HTTP POST or PUT message. The controller then send this data and a UUID identifier and MAC address to a remote website. | 12-29-2016 |
| 340619000 | Optical sensor | 4 |
| 20080252472 | AUTOMATIC LIQUID LEVEL MONITORING APPARATUS - An automatic liquid level monitoring apparatus. A flexible circuit board is attached to a resilient base plate. A light transmitter is disposed on and electrically connected to the flexible circuit board. A light detector is disposed on and electrically connected to the flexible circuit board. The light detector opposes the light transmitter. An alarm is disposed on the resilient base plate and electrically connected to the flexible circuit board. A power supply member is electrically connected to the flexible circuit board, supplying power thereto. | 10-16-2008 |
| 20100066548 | Optical Switch - An optical switch having a housing, a light source and a light detector. The light source and light detector are located remote from the housing. The light source is connected to the housing with a first light guide, and the light detector is connected to the housing with a second light guide. The first and second light guide cables have distal ends positioned through the housing and are optically aligned but separated by a gap. The switch includes a device to interrupt a light beam that is usually adapted to removably occupy the gap. The switch may be embodied in a float. | 03-18-2010 |
| 20100134303 | FLUID LEVEL DETECTOR FOR AN INFUSION FLUID CONTAINER - A fluid level sensing assembly includes a clamp that securely clamps a fluid level detector in place on a rigid walled infusion container, to minimize movement during use of the infusion container and fluid level detector. The fluid level detector includes a light sensor array and a light source. The light sensor array is positioned vertically relative to a side wall and senses light at various points vertically along the light sensor array. The light source is positioned vertically relative to the side wall and projects light linearly through a vertical portion of the side wall. An incidence angle α of the light source relative to the side wall is selected such that a light beam emitted by the light source is reflected when a transmission path of the light beam intersects either a side wall/fluid interface or a side wall/air interface. Accordingly, when infusion fluid is absent in a vertical location of the container, the light sensor array outputs a signal based on a presence or absence of light at a sensor location adjacent the vertical location and corresponds to whether there is a presence or absence of infusion fluid at the vertical location, to indicate the level of infusion fluid within the container. | 06-03-2010 |
| 20120319852 | DEVICE FOR PROVIDING AN INDICATION OF WHEN THE VOLUME OF LIQUID IN A BAG REACHES A PREDETERMINED VALUE - A device that attaches to a bag provides an indication when the volume of matter in the bag reaches a predetermined value. The device includes a detachment detector that provides a detachment signal when the device detaches from the bag. First and second arms may be pivotally connected to each other and biased in a direction towards each other adjacent first ends of the arms. The first and second arms in use engage opposing sides of the bag. At least one bag level indicator provides a bag level signal when the volume of matter in the bag reaches the predetermined value. | 12-20-2012 |
| 340620000 | Electrode probe | 2 |
| 20100052921 | Water Sensor Switch System - A drain pan system for activating a pump when detecting a predetermined water level in a drain pan is provided. The drain pan system includes the drain pan, the pump, a water sensor, first and second inputs, a control section and a switching device. The water sensor is coupled to the drain pan for detecting a level of water in the drain pan, the water sensor generating a drain pan water level detection signal in response to detection of the level of the water in the drain pan equal to or greater than a predetermined water level. The pump is coupled to the drain pan and, when activated, pumps the water from the drain pan. The first input couples a source line to a first power potential. The second input couples a neutral line to a second power potential, the second power potential being a neutral potential. The control section is coupled to the water sensor for receiving the drain pan water level detection signal therefrom. The control section is also connected to the first and second inputs and generates a switching signal in response to the drain pan water level detection signal. In addition, the switching device is coupled to the control section for connecting the first input to the pump in response to the switching signal, thereby activating the pump to pump the water from the drain pan. | 03-04-2010 |
| 20100289654 | OVERFILL DETECTION SYSTEM FOR TANK TRUCKS - An overfill probe is utilized in each compartment of a multi-compartment transport tanker and has a depending sensing tube for detecting liquid overfill conditions. An overfill detector is within the bottom end of the probe tube and is thus protected from damage. Internal damage to the probe and malfunction of the system also precluded by connecting the exposed cap of the probe to the detector by a longitudinally extensible, stretchable cable extending through the tube to the detector, or a circuit board may be retained within the depending tube. Additionally, a thermistor socket and an optic socket are provided which are part of the overfill protection system, each having contact connections that may be readily replaced when worn without removing or replacing the wiring within the socket assembly. | 11-18-2010 |
| 340621000 | Having sonic sensor | 2 |
| 20090303059 | METHOD AND APPARATUS FOR DETERMINING LEVEL OF MATERIAL IN A CONTAINER - Apparatus ( | 12-10-2009 |
| 20100141460 | ACOUSTIC FLUID PRESENCE/ABSENCE DETECTION - An acoustic sensor detects presence and/or absence of fluid in a fluid delivery medium. The acoustic sensor detects fluid absence based on the difference of the speed of sound between air and a fluid. For example, the acoustic sensor may detect fluid absence based on a phase shift between acoustic signals transmitted through the fluid delivery medium when fluid is present as compared to acoustic signals transmitted through the fluid delivery medium when fluid is absent, e.g., when air or bubbles are present in the fluid delivery medium. | 06-10-2010 |
| 340622000 | Having heat sensor | 3 |
| 20090051554 | SENSING DEVICE ARRANGEMENT FOR FUEL STORAGE TANKS - A sensing device arrangement for a fuel storage system is provided having at least one storage tank, a plurality of sensing devices positioned in or around the at least one storage tank, and a controller in electrical communication with the plurality of sensing devices. The controller is configured to communicate with each sensing device of the plurality of sensing devices on a single bi-directional data line. A sensing device of the plurality of sensing devices is activated by the controller. Data is acquired by the sensing device and transmitted to the controller over the data line. The controller instructs the sensing device to change to a low power state. The controller receives electrical characteristics from the plurality of sensing devices recognized on the data line and calculates a characteristic of the sensing device arrangement. The controller verifies compliance with an intrinsic safety barrier. | 02-26-2009 |
| 20100117843 | HEAT PUMP TYPE HOT WATER SUPPLY APPARATUS - This heat pump type hot water supply apparatus has a remaining hot water display ( | 05-13-2010 |
| 20110156918 | SYSTEM FOR MONITORING OIL LEVEL AND DETECTING LEAKS IN POWER TRANSFORMERS, REACTORS, CURRENT AND POTENTIAL TRANSFORMERS, HIGH VOLTAGE BUSHINGS AND THE LIKE - System for monitoring oil level and detecting leaks in power transformers, reactors, current and potential transformers, high voltage bushings and the like, notably for a system that through the use of sensors and other electronic components measures and monitors transformers and similar equipment in real time, filled with insulating oil, with greater precision and without need for floats or mobile mechanical parts, while presenting countless facilities in the sense of making level monitoring more reliable and safer, highlighting the level error calculations, oil leak detection alarm, excess oil detection alarm during the equipment filling process and calculation of tendencies of evolution for levels among other facilities. | 06-30-2011 |
| 340623000 | Float sensor | 14 |
| 20080297359 | Optical Switch - An optical switch having a housing, a light source and a light detector. The light source and light detector are located remote from the housing, The light source is connected to the housing with a first light guide, and the light detector is connected to the housing with a second light guide. The first and second light guide cables have distal ends positioned through the housing and are optically aligned but separated by a gap. The switch includes a device to interrupt a light beam that is usually adapted to removably occupy the gap. The switch may be embodied in a float | 12-04-2008 |
| 20090243864 | WARNING DEVICE AGAINST FILTER MATERIAL BLOCKING FOR AQUARIUM - A warning device against blocking of filter material for an aquarium, it mainly has a receiving case having therein a battery chamber for receiving at least a battery, and having a triggering switch electrically connecting with an indicating lamp installed in the receiving case; and the warning device has a detector which has a link mechanism, one end of the link mechanism is connected with the triggering switch, the other end is provided with a float bowl extending into the filter tank of the aquarium to detect the level of water. When in blocking, the water level rises to raise the float bowl to actuate the triggering switch to turn on the indicating lamp, thus a warning effect is obtained. | 10-01-2009 |
| 20090303060 | LIQUID LEVEL WARNING DEVICE - A liquid level warning device with a separate audible alarm is disposed in a liquid tank for indicating the amount of liquid in the tank. The device also includes a plurality of float switches disposed at pre-selected levels within the tank and a plurality of LED's for indicating the level of liquid in the tank. A separate audible alarm independent of the visual indicators sounds an alarm when the tank is at a pre-selected level. A float switch is also disclosed. | 12-10-2009 |
| 20100315246 | ENGINE OIL-LEVEL DETECTION SYSTEM - An oil-level detection system for an engine-powered product includes a dipstick designed to be received within a crankcase. The system further includes a detector attached to the dipstick, where the detector is designed to sense, from within the crankcase, a level of oil within the crankcase. The system also includes a display in communication with the detector. The display identifies information to a user related to the level of oil within the crankcase, without the user opening the crankcase. | 12-16-2010 |
| 20110090088 | METHOD AND APPARATUS FOR DETECTION OF PHASE SEPARATION IN STORAGE TANKS - A system and method for detecting phase separation in storage tanks is provided. At least one float has a density calibrated to detect a density differential among surrounding fluids. The float is buoyant on a relatively more dense lower layer of fluid such as phase separated fuel or pure water, while remaining submerged in a relatively less dense upper layer of fluid such as a gasoline/ethanol blend. A detection device sends a signal when the float rises or falls above or below a preset acceptable level. | 04-21-2011 |
| 20120056749 | Vapor resistant tank level alarm system - A tank level alarm system in which all of the electrical components are located in a sealed housing above the tank's upper surface. There is no direct electrical connection between the tank liquid level detector within the tank interior and the alarm electrical components in the housing. A magnetic switch opens and closes based upon the proximity of a magnet mounted to a vertical rod to which a float is attached within the tank. The magnetic switch is positioned electronically in series with a battery and then in parallel with each of a plurality of alarm devices which in the preferred embodiment include a flashing light, an audio generator and a transmitter. When the tank's liquid level is below a selected maximum “safe” level, the magnet mounted to the upper end of a vertical rod is separated from the magnetic switch by a sufficient distance to keep the switch in its “open” state. However, as the liquid rises in the tank, the float connected to the lower end of the vertical rod, begins to rise with the liquid thereby causing the vertical rod to travel upwardly with the liquid. This raises the magnet positioned at the upper end of the rod until it comes sufficiently close to the magnetic switch to close it electronically, thereby connecting the battery to the alarm devices. A normally closed magnetic switch may be used with a chain or other flexible interconnector instead of a rod to serve as a low level alarm instead of a high level alarm. | 03-08-2012 |
| 20140077958 | WATER LEVEL DETECTION DEVICE - A water level detection device includes a case, a detection assembly, and a latching ring secured to the case. The detection assembly includes a warning module, a micro switch, a cable, and a floater. The cable is inserted through the latching ring and divided to a first section connected to the micro switch and a second section connected to the floater. When a water level is in an upper limit or a lower limit, the second section is tight, and an angle is defined between the second section and the first section. When the water level is between the upper and the lower limit, the second section is loose. When the water level is over the upper limit or under the lower limit, the floater pulls the first section via the second section to trigger the micro switch to alarm the warning module. | 03-20-2014 |
| 20140292523 | Alert System for Detecting Rising Water Levels - A portable, self-contained flood alarm which alleviates the shortcomings of the alarms of the prior art and offers an easy-to-use and reliable flood and water level alarm which will adequately warn users of potential flood conditions and possibly save their personal belongings, equipment and lives. | 10-02-2014 |
| 20160019768 | Alert System for Detecting Rising Water Levels - A portable, self-contained flood alarm which alleviates the shortcomings of the alarms of the prior art and offers an easy-to-use and reliable flood and water level alarm which will adequately warn users of potential flood conditions and possibly save their personal belongings, equipment and lives. | 01-21-2016 |
| 20160084696 | SMART ELECTRONIC FLOAT, SYSTEM AND METHOD FOR INTEGRATING MOBILE PERSONAL FISHING INFORMATION, AND COMPUTER PROGRAM PRODUCT - A smart electronic float includes: an accelerometer, sensing a movement distance, a movement velocity, movement power, and a sinking gravity of the smart electronic float in water, to produce a corresponding plurality of pieces of float movement data; a microcontroller, receiving the float movement data sensed by the accelerometer; a first wireless communications device, where the microcontroller transmits the float movement data to an electronic device through the first wireless communications device, and receives a light-emitting diode (LED) on/off signal from the electronic device; and an LED, where on/off of the LED is controlled by the microcontroller according to the LED on/off signal. | 03-24-2016 |
| 20160163178 | WATER STORAGE EQUIPMENT AND WATER LEVEL ALARM DEVICE THEREOF - A water level alarm device includes first and second magnets, a wire, an insulated connection line, a floating body, an amplifier, and an alarm. The wire passes through a gap between the first magnet and the second magnet. The floating body floats in water of water storage equipment. When a water level of the water storage equipment is lower than a reference value, a buoyancy force of the floating body is less than a gravity of the floating body, the floating body pulls the insulated connection line, the insulated connection line vibrates, and the wire vibrates accordingly. The wire cuts magnetic induction lines between a north pole of the first magnet and a south pole of the second magnet to generate induced current. The induced current is amplified by the amplifier and then is output to the alarm, to control the alarm to alarm. | 06-09-2016 |
| 20160178428 | BALL FLOAT ALARM | 06-23-2016 |
| 20160203693 | Safety Device for Use in a Bathroom | 07-14-2016 |
| 340624000 | Vertically reciprocable | 1 |
| 20140049396 | Alert System for Detecting Rising Water Levels - A portable, self-contained flood alarm which alleviates the shortcomings of the alarms of the prior art and offers an easy-to-use and reliable flood and water level alarm which will adequately warn users of potential flood conditions and possibly save their personal belongings, equipment and lives. | 02-20-2014 |
