Did You Know...
...that the Band-Aid Bandage was invented by a Johnson & Johnson employee whose wife had cut herself? Earl Dickson's wife was rather accident prone, so he set out to develop a bandage that she could apply without help. He placed a small piece of gauze in the center of a small piece of surgical tape, and what we know today as the Band Aid bandage was born!
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| Number | Title | Issue Date |
| 8104323 | Flow controller, flow measuring device testing method, flow controller testing system, and semiconductor manufacturing apparatus A testing method for testing a flow controller with high accuracy by shortening as much as possible the time required for the test including the wait time. A testing-subject flow controller and a testing-standard flow controller are arranged in that order in series ... | 01/31/2012 |
| 7891228 | Dual-mode mass flow verification and mass flow delivery system and method A system performs mass flow delivery of a fluid, and also performs mass flow verification of the fluid. The system includes an inlet valve that controls flow of the fluid into a chamber, an outlet valve that controls flow of the fluid out of the chamber, a pressure ... | 02/22/2011 |
| 7607335 | Particulate sampler system flow calibration A particulate sampler system includes a diluted exhaust mass flow controller that receives flow from a dilution mass flow controller and a laminar flow element (LFE). The dilution mass flow controller and LFE are fluidly arranged parallel to one another. A controlle... | 10/27/2009 |
| 7424346 | Apparatus and method for pressure fluctuation insensitive mass flow control A mass flow controller includes a thermal mass flow sensor in combination with a pressure sensor to provide a mass flow controller that is relatively insensitive to fluctuations in input pressure. The pressure sensor and thermal sensor respectively provide signals t... | 09/09/2008 |
| 7343775 | Device for continuous calibration of a gas mass flow measurement device A gas test system (300) is disclosed comprised of a flow loop (302), a blower system (304), a temperature control system (306), a reference meter system (308), and a unit under test (UUT) system (310). The UUT system connect... | 03/18/2008 |
| 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 |
| 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 |
| 7258016 | Pressure sensor with electronic datasheet A pressure sensing system and method includes a pressure sensor configured to include a pressure sensing diaphragm and a pressure port. A memory circuit incorporated can be incorporated into the pressure port. A high order polynomial component can also be provided. ... | 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 |
| 7249486 | Method for monitoring a sensor The present invention concerns a method of monitoring a sensor for sensing the flow speed of a medium. The invention further concerns an apparatus for carrying out that method. In order to be able to monitor the sensor, without providing redundant sensors, the flow ... | 07/31/2007 |
| 7174263 | External volume insensitive flow verification A flow verifier for in-situ verification of a device under test (DUT), including an inlet connectable to a DUT, an outlet connectable to a vacuum pump for drawing gas through the DUT and the flow verifier, a vessel having a predetermined volume, diffusive media conn... | 02/06/2007 |
| 7152455 | Rapid gas recovery in an incubator system Methods and apparatus for rapid gas recovery in a controlled gas atmosphere enclosure, which are particularly suited for maintaining incubator gas concentration levels, include the formulation of algorithms utilized for this purpose. The algorithms are included in t... | 12/26/2006 |
| 7137407 | Trip manifold A trip manifold assembly is disclosed which includes a manifold body connected to a header shaft. The header shaft passes through a plurality of rotary valves. Each rotary valve is connected to a pressure transmitter. The header shaft comprises two passages includin... | 11/21/2006 |
| 7137400 | Bypass loop gas flow calibration Described herein are apparatuses, methods and systems to monitor the performance of one or more mass flow controllers that supply gases to deposition, etching, and other manufacturing processes. A bypass loop is provided in fluid connection from either the process l... | 11/21/2006 |
| 7108009 | Semiconductor manufacturing apparatus enabling inspection of mass flow controller maintaining connection thereto An opening/closing of a plurality of valves are controlled so that a plurality of gases flow into a chamber in an operation of a semiconductor manufacturing apparatus, and the opening/closing of the plurality of valves are controlled so that a gas A flows into mass ... | 09/19/2006 |
| 7096729 | Disposable fluid flow sensor A disposable fluid flow sensor is disclosed herein, which generally includes a flow channel assembly comprising a flow channel tube in association with a disposable flow channel portion. A sensor die is located approximate to a thin interface or membrane formed from... | 08/29/2006 |
| 7086272 | Calibration method for digital air pressure gauge The digital air pressure gauge includes an error correction lookup table database stored within a memory device within the gauge. The database includes reference air pressure values and associated measured air pressure values, where the reference air pressure values... | 08/08/2006 |
| 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 |
| 7072775 | Viscosity-corrected flowmeter A digital flowmeter can include a vibratable conduit with a mixture of a liquid and a gas flowing therethrough. A driver can be connected to the conduit and can be operable to impart motion to the conduit where a sensor can also be connected and can be operable to s... | 07/04/2006 |
| 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 |
| 7028528 | Flowmeter proving device and method A flowmeter proving device and method for use in proving a flowmeter in situ under operating conditions comprises a pair of standard Coriolis based mass flowmeters (2, 3) which are connected together in series by a conduit (7) connecting the fluid outl... | 04/18/2006 |
| 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 |
| 7003417 | Multiple calibration ranges stored in a process transmitter Process variable transmitters, and method for calibrating such device, are disclosed that support calibrating, within a single transmitter device, multiple operating ranges such that a transmitter can switch from a first calibration correction definition associated ... | 02/21/2006 |
| 6973818 | Exhaust volume measurement device A vehicle exhaust measurement system is provided includes that a conduit having a conduit inlet and a conduit outlet. A make-up air tube is connected to and is in fluid communication with the conduit inlet. The make-up air tube provides make-up air for mixing an exh... | 12/13/2005 |
| 6948508 | Apparatus and method for self-calibration of mass flow controller A mass flow controller includes a mass flow sensor and a calibrator configured to perform a self-calibration on the mass flow controller. The calibrator generates flow measurements that are used as “standards” and flow measurements from the mass flow sensor are ... | 09/27/2005 |
| 6935156 | Characterization of process pressure sensor A pressure sensor of a process device, is characterized by applying a plurality of pressures to the process sensor. Outputs of the plurality of pressures are received. A compensation relationship is determined based upon the pressure sensor output. The characterizat... | 08/30/2005 |
| 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 |
| 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 |
| 6893152 | Method and device for evaluating a fuel gas wobbe index A method for evaluating the Wobbe index of a fuel gas belonging to a family of gases. The method includes measuring mass flow rates the fuel gas and of a reference gas, which is not necessarily a fuel gas at respective absolute pressures and temperatures and in a so... | 05/17/2005 |
| 6804991 | Method and device for detecting a leakage in a fluid system of a blood treatment apparatus In order to detect a leakage in a fluid system of a blood treatment apparatus having an extracorporeal blood circuit, the pressure in the fluid system is measured continuously during a predetermined period of the duration of treatment, and the leak rates are calcula... | 10/19/2004 |
| 6782333 | Meter calibration system and apparatus A meter calibration system and apparatus capable of calibrating meters devoid of process connections. The apparatus are a calibration system and process connection adapters, where in the system is operable for calibrating both linear and nonlinear meters at multiple... | 08/24/2004 |
| 6655922 | System and method for detecting and diagnosing pump cavitation The present invention provides cavitation detection systems and methods employing a classifier for detecting, diagnosing and/or classifying cavitation in a pumping system. The classifier can be integral to tie cavitation detection system and/or operativel... | 12/02/2003 |
| 6654697 | Flow measurement with diagnostics A fluid flow meter diagnosing the condition of its primary element or impulse lines connecting to a differential pressure sensor. A difference circuit coupled to the differential pressure sensor has a difference output representing the sensed differential... | 11/25/2003 |
| 6640614 | Package burst pressure simulator An apparatus and method for simulating a package pressure burst condition for calibrating a package pressure burst detector, where the package pressure burst detector is connected to a pressure tank, and the detector applies an air flow into the tank to g... | 11/04/2003 |
| 6626036 | Clutch fill rate calibration apparatus and method A system for calibrating the fill times of clutches using a pressure transducer service tool includes attaching the tool to an electronic controller on the vehicle and the a clutch hydraulic fluid line, signaling the controller to calibrate the clutch, th... | 09/30/2003 |
| 6561207 | Mass flow meter systems and methods A flow meter system that calculates mass flow rate based only on a single pressure signal. A flow controller is arranged in parallel with a restriction such that a constant pressure differential is maintained across the restriction. The pressure, and temp... | 05/13/2003 |
| 6553808 | Self-normalizing flow sensor and method for the same An apparatus to normalize a flow rate of a fluid in a main flow channel is provided. The apparatus uses a moveable member, such as a flexible membrane disposed for reciprocating displacement, to produce a constant dither flow of the fluid that is independ... | 04/29/2003 |
| 6505134 | Method of calibrating a single meter blending fuel dispensing system A single meter blending fuel dispensing system utilizing a pair of proportional flow control valves each having a pressure transducer positioned aft of the valve flow control mechanism. A computer controller is used to program a desired fuel mixture by va... | 01/07/2003 |
| 6484555 | Method of calibrating an integrated pressure management apparatus A method of calibrating an integrated pressure management apparatus having a chamber with an interior volume varying in response to fluid pressure in the chamber. A diaphragm partially defining the chamber is displaceable between first and second configur... | 11/26/2002 |
