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| Number | Title | Issue Date |
| 8059004 | Drain blockage responsive alarm system Disclosed is a drain blockage responsive alarm system. The drain blockage responsive alarm system comprises a cleanout cap member, at least one drain blockage responsive element, and an alarming module. The cleanout cap member is capable of being installed at a port... | 11/15/2011 |
| 7880624 | System and method for detecting occlusion using flow sensor output A method and system for detecting an inclusion within an infusion system. The method includes monitoring an output signal of a flowrate sensor as fluid flows through an infusion system. The output signal is then converted with a noise reduction filter to obtain a fi... | 02/01/2011 |
| 7639151 | Liquid blocking apparatus and system equipped with an alarm or wireless calling device and a storing bag The present invention is related to a liquid blocking apparatus and a system thereof, wherein if the liquid contained in an IV bag or a liquid tank is oozed out completely, the flow of liquid is blocked, the alarm lamp is turned on, the alarm sound is generated, and... | 12/29/2009 |
| 7423542 | Water detection sensing system A water detection signal generator includes a water-sensing member with a first surface which is movable from a first position to a second position upon contact with water by the sensing member. A movement responsive device is coupled with the first surface of the s... | 09/09/2008 |
| 7354341 | System and method for detecting an air flow condition indicative of plugging of a discharge apparatus of an agricultural combine A system and method for detecting a condition indicative of onset of plugging or actual plugging of discharge apparatus of an agricultural combine, utilizing an air flow sensor disposed in relation to the discharge apparatus for sensing one or more air flow characte... | 04/08/2008 |
| 7336190 | Early detection and advanced warning “waste is backing up” apparatus and method A device for the early detection and advanced warning that waste is backing up in a waste pipe line comprising: a tubular body member having an open lower portion, a central hollow core extending axially there through, and a closed upper portion. The open lower port... | 02/26/2008 |
| 7321846 | Two-wire process control loop diagnostics A diagnostic device for coupling to a process control loop includes digital communication circuitry configured to receive a digital communication signal from the process control loop. The digital communication signal is a digitally modulated analog signal on the pro... | 01/22/2008 |
| 7318353 | Method and apparatus for a product displacement sensing device A displacement sensing device transduces deflection of a body disposed around a conduit into complementary signals indicative of the amount of displacement experienced by the conduit. The displacement sensing device includes a cuff and a sensor disposed on an outer ... | 01/15/2008 |
| 7300321 | Early warning and protection for heat exchange systems Method and apparatus are provided for warning a user or operator about a malfunction in a pump and/or engine of a marine vessel or another suitable device or equipment, featuring steps of: comparing a sensed pressure differential at a sensed RPM when the pump/engine... | 11/27/2007 |
| 7290450 | Process diagnostics A diagnostic device for use in a industrial process includes monitoring electronics or diagnostic circuitry configured to diagnose or identify a condition or other occurrence in the industrial process. The system can be implemented in a process device such as a flow... | 11/06/2007 |
| 7260496 | Pressure detector and method of diagnosing blockage of impulse lines A pressure detector for detecting a high side pressure from a high pressure side impulse line and a low side pressure from a low pressure side impulse line includes a high side pressure variance calculating section for calculating a high side pressure variance from ... | 08/21/2007 |
| 7254518 | Pressure transmitter with diagnostics In one embodiment, a pressure transmitter is provided which diagnoses the condition of a primary element and/or an impulse line which connects to a pressure sensor. A difference circuit coupled to the pressure sensor has a difference output which represents the sens... | 08/07/2007 |
| 7221280 | Urinous wet alarm A urinous wet alarm to detect a soaked diaper and generate an audio alarm to alert replacement includes a shell to house a test IC. The test IC connects to a lithium battery, a thin alarm speaker and one end of a sensing unit which is a pliable, elongate, narrow and... | 05/22/2007 |
| 7218237 | Method and apparatus for detecting water leaks A system for detecting water leaks is described. In one embodiment, the system includes a plurality of sensors, selected from a moisture sensor, a water level sensor, and/or a water temperature sensor. A processor collects moisture readings from the sensors. In one ... | 05/15/2007 |
| 7089783 | Trouble shooting accelerator system for implantable drug delivery pumps An implantable pump and methods for detecting leaks in an implantable pump are provided. In one embodiment, the implantable drug pump includes a housing having at least one inlet port and an outlet port formed therein. The outlet port is adapted to communicate with ... | 08/15/2006 |
| 7091868 | Portable liquid level detector A portable liquid level detector. The detector comprises a portable casing, a power supply unit disposed in the portable casing, a sensing device coupled to the power supply unit to sense a capacitance within a container and to output a enable signal when a differen... | 08/15/2006 |
| 7084777 | Fluid leak detection device A fluid leak detection device includes a platform having at least one fluid concentration zone forming a fluid detection area. Two electrically conductive members are positioned in the fluid concentration zone such that a gap is formed between the electrically condu... | 08/01/2006 |
| 7085610 | Root cause diagnostics An industrial process diagnostic apparatus is provided which can identify a source, or “root cause”, of an aberration in an industrial process. A plurality of process configuration models are provided which each represent a physical (or actual) implementation of... | 08/01/2006 |
| 7084778 | Ammonia flow alarm and method therefor A sensor system for monitoring cryogenic gas flow through a tube/pipe has at least one sensor coupled to the tube/piping. An alarm circuit is coupled to the sensor for receiving measurement signals from the at least one sensor and for sending an alarm signal when th... | 08/01/2006 |
| 7069183 | Early fault detection in pump valves In a process for the monitoring and automatic early fault detection in valves, in particular intake and/or pressure valves, of an oscillating displacement pump, in particular a membrane dosing pump, it is provided that the increased operating noise produced by a lea... | 06/27/2006 |
| 7046180 | Analog-to-digital converter with range error detection A circuit includes a multiplexer, an analog-to-digital converter, and a processor that compares a sequence of digital outputs from the analog-to-digital converter to a sequence of normal ranges that correspond with the digital outputs in order to provide an error ou... | 05/16/2006 |
| 7023351 | Apparatus and method of controlling water supply of washing machine An apparatus and a method of controlling a water supply of a washing machine, which naturally discharges the water within a detergent dissolving unit when the water level within the detergent dissolving unit is more than a designated water level so as to prevent the... | 04/04/2006 |
| 7018800 | Process device with quiescent current diagnostics A process device for use on an industrial process control system includes a quiescent current sensor configured to sense quiescent current draw of the process device. Diagnostic circuitry determines a diagnostic condition of the process device as a function of the s... | 03/28/2006 |
| 7010459 | Process device diagnostics using process variable sensor signal A diagnostic device for use in a process control system receives a sensor signal related to a process variable of a process sensed by a process variable sensor. A signal preprocessor provides a sensor power signal output as a function of a frequency distribution of ... | 03/07/2006 |
| 7004727 | Blood component processing systems and methods using fluid-actuated pumping elements that are integrity tested prior to use Blood component processing systems and methods are coupled to a blood component processing device. The systems and methods include a fluid circuit that comprises at least one fluid pressure actuated pump station, at least one fluid flow path communicating with the p... | 02/28/2006 |
| 6970003 | Electronics board life prediction of microprocessor-based transmitters A field device includes circuitry to successively measure a parameter related to current drawn by electronics of the field device. The measurements are provided to a prediction engine which calculates a diagnostic output based upon the plurality of current-related m... | 11/29/2005 |
| 6950029 | Airflow blockage detection apparatus for a permanent split-capacitor single-phase fan motor An airflow blockage detection apparatus for a permanent split-capacitor single-phase cooling fan motor measures and compares electrical currents in main and auxiliary windings of the motor to detect airflow blockage. Main and auxiliary current sensors detect AC curr... | 09/27/2005 |
| 6920799 | Magnetic flow meter with reference electrode An magnetic flow meter is provided which includes a reference electrode configured to electrically couple process fluid flowing within a flowtube of the flow meter. The reference electrode is adapted to measure potential of the process fluid. A current limiter is co... | 07/26/2005 |
| 6920400 | Method and apparatus for detecting a plugged port A method and apparatus for detecting and clearing a plugged sensor port in a system containing a fluid being monitored through the sensor port. The method comprises establishing a range beyond which a fluid variable is expected to vary within a predetermined time in... | 07/19/2005 |
| 6907383 | Flow diagnostic system A flow diagnostic system for a flow sensing element and impulse lines. A pressure transmitter coupled to the impulse lines provides digital pressure data to a control system. The control system provides the pressure data and real time clock readings to a diagnostic ... | 06/14/2005 |
| 6904386 | Control system and method for detecting plugging in differential pressure cells A method and control system is disclosed that monitors the high frequency or commonly referred to as the “noise” component of a measurement signal to detect plugging conditions in fluid flow systems monitored by DP-cell based sensors. This high frequency compone... | 06/07/2005 |
| 6894620 | Method and device for monitoring the service life of a filter A method of monitoring the service life of a filter (1) in a filter system equipped with a fan, in particular a filter (1) in an air conditioning system of a motor vehicle, the instantaneous air speed (21) preferably being measured on each start... | 05/17/2005 |
| 6842117 | System and method for monitoring and indicating a condition of a filter element in a fluid delivery system A filter condition sensing circuit includes current and voltage sensors and a data processor. The current and voltage sensors produce signals indicating magnitudes of electrical current and voltage, respectively, provided to an electric motor used to move a fluid (a... | 01/11/2005 |
| 6819250 | Out-of-liquid sensor, and liquid supply device using same The present invention provides a highly universal out-of-liquid sensor that allows an out-of-liquid condition to be accurately detected for a long time, and provides a liquid supply device using the same. The out-of-liquid sensor 1, that is mounted in a liqui... | 11/16/2004 |
| 6788209 | Automatic emergency shut-off system for delivery transports A software driven, solid state controlled, electro-mechanically operated system to monitor volatile liquid fuel or other hazardous liquids and provide emergency shut-off if the delivery system is ruptured. A computer receives input from transducers monitoring the fl... | 09/07/2004 |
| 6734801 | Switch frame electronic air filter alarming device An alarming apparatus and methods for use with an air filter are disclosed herein. A filament can be stretched across a portion or section of an air filter frame, wherein the portion or section comprises a first locus and a second locus located diagonally opposite t... | 05/11/2004 |
| 6731216 | Proper tubing installation testing method and apparatus for a peristaltic pump A tubing installation checking device is provided for determining proper installation of a tubing along a tube receiving channel in a peristaltic pump of the type having a tube receiving channel and a door for holding a tubing therein. The tubing installation checki... | 05/04/2004 |
| 6661514 | Tube blockage monitor A blockage monitor for detecting a blockage in flow of particles includes a sensor body for mounting on a wall of the seed duct and defining a front face flush with the duct surface carrying both an LED light source for projecting light into the interior ... | 12/09/2003 |
| 6513542 | Liquid supply or drain pipe equipped with a leakage detector A liquid supply/drain conduit system that is equipped with an inner leakage detector and a liquid process tank that is equipped with such liquid supply/drain conduit system are disclosed. The liquid supply/drain conduit system includes a first conduit for... | 02/04/2003 |
| 6507282 | Filter monitoring system using a thermistor A system for monitoring a percentage of filter life remaining of a filter assembly of filter-fan devices. The system uses a single thermistor that is operated in two separate modes for monitoring the filter assembly. The thermistor is positioned in the ai... | 01/14/2003 |
