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Vladimir Zworykin, television pioneer ; Talking about an invention in which he played a critical role.
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| Number | Title | Issue Date |
| 7823436 | Method and apparatus for in situ testing of gas flow controllers Methods and apparatus utilize a rate of drop in pressure upstream of a gas flow controller (GFC) to accurately measure a rate of flow through the GFC. Measurement of the gas flow through the many gas flow controllers in production use today is enabled, without requi... | 11/02/2010 |
| 7555928 | 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... | 07/07/2009 |
| 7461537 | Device and method for calibration of a mass flow sensor A device and method for calibration of a mass flow sensor (14) employs a flow channel and a holder for the mass flow sensor in the flow channel. An adjustable throttle device is provided between the holder and a connection to a pump during a calibrating opera... | 12/09/2008 |
| 7302313 | Air quality monitoring systems and methods An air monitoring system is disclosed having an air monitoring unit with at least one sensor for measuring data of an air quality parameter and a computer for storing the air quality parameter data received from the sensor. The air monitoring unit may use an install... | 11/27/2007 |
| 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 |
| 7201269 | Device for heating escalators or moving walkways An escalator or moving walkway is provided in combination with a device for heating components of the escalator or moving walkway. The device includes at least one pivotably mounted heating element adapted to direct heated air onto a selected component of the escala... | 04/10/2007 |
| 7150201 | System and method for measuring flow One embodiment of the present invention can comprise a primary flow measurement system, a secondary flow measurement system in fluid communication with the primary flow measurement system and a control coupled to the primary flow measurement system and the secondary... | 12/19/2006 |
| 7089789 | System for calibrating an integrated injection nozzle and injection pump A fuel injection system (18) is calibrated as an assembled system. The fuel injection system (18) includes a unit pump (10) a cam follower (24), a joined fuel injection line (14) and injection nozzle (16). The fuel injection... | 08/15/2006 |
| 7031871 | Sensor assembly for determining total temperature, static temperature and Mach number A temperature sensor is provided with at least two thermometers or temperature sensing elements that have different recovery factors, and which are in the same airflow. The recovery factors for the respective thermometers are determined for the sensor and stored in ... | 04/18/2006 |
| 6962090 | Heated stainless steel emissions canister An exhaust gas measurement system is provided that includes a probe to find a sample exhaust gas passageway for collecting exhaust gas. A stainless steel canister is fluidly connected to the probe for storing the exhaust gas. A pump fluidly interconnects the probe a... | 11/08/2005 |
| 6934643 | Ultra accurate gas injection system with vehicle transient air simulation An ultra accurate gas injection system with vehicle transient air simulation is provided. The device includes an input device, at least one mass flow device, an air flow device, a controller, such as a PC based controller, and an output device. The air flow device i... | 08/23/2005 |
| 6698270 | Quality control systems for detecting leaks of gaseous or liquid materials from closed containers A system for testing systems which are in turn used to test the leaktightness of a hollow body is suggested. Instead of the hollow body, a test body (2) is placed in the system which generates a defined pressure increase in a measuring chamber (4) within ... | 03/02/2004 |
| 6470281 | Method and apparatus for measuring a throttle point In a process and a device for measuring a throttle point, a fluid under pressure is applied to the throttle point by a pump, at least one operating parameter of the pump is acquired and stored, at least two reference operating parameters of two reference ... | 10/22/2002 |
| 5663487 | Capillary tube determining the leakage rate for a test leak The invention relates to a capillary tube (1) determining the leakage rate for a test leak; in order to simplify its production and reduce the risk of breakage, it is proposed that the capillary tube (1) be a prior art quartz capillary tube encased in pla... | 09/02/1997 |
| 5442957 | Calibration technique for production mass air flow sensor flow stands A mass air flow sensor calibration air flow stand is tested during production by substituting a nozzle supplying a predetermined amount of air flow for a mass air flow sensor in the production line. The calibration air flow stand is supplied air from the ... | 08/22/1995 |
| 5307667 | Response time test apparatus for a mass air flow sensor A response time test apparatus for a mass air flow sensor (10) mounted on a sensor manifold (12) connectable to the air intake manifold of an internal combustion engine. The test apparatus has a connector member (28) to which the sensor manifold (12) may ... | 05/03/1994 |
| 5299447 | Air flow manifold system for providing two different mass air flow rates to a mass air flow sensor production calibration station An air flow manifold system for a production line calibration station. The air flow manifold system has a connector manifold connected to the production line calibration station, a vacuum source, a first manifold and a second manifold. The first and secon... | 04/05/1994 |
| 5267467 | Mass air flow sensor two temperature production line test apparatus A two temperature test apparatus for a mass air flow sensor having a cold test station disposed in a cold test chamber and a hot test station disposed in a hot test chamber. A first air manifold connects the cold test chamber with a vacuum chamber. The fi... | 12/07/1993 |
| 4896539 | Spray calibration device and method A device for determining a flow rate of liquid discharged from a plurality of discharges comprising a plurality of collectors for the discharged liquid connected by a manifold having a plurality of inlet lines attached to the discharges and a single outle... | 01/30/1990 |
| 4823591 | Calibration method for exhaust mass flow measuring system A testing apparatus for sampling the emission content of the source when a portion of the exhaust gas is optionally diluted using clean dry air added near the sample extraction point. A sonic venturi is used to establish a constant mass flow rate from the... | 04/25/1989 |
| 4821557 | Method and apparatus for determining the accuracy of a gas flow meter Method and apparatus for determining (i.e., proving) the accuracy of a gas flow meter includes the use of a flow determining valve to derive flow data representative of actual gas flow rate simultaneously with similar flow data obtained from the meter. Re... | 04/18/1989 |
| 4753095 | Method for determining real gas effects in critical flow nozzles A method and apparatus for determining the gas flow rate in a high pressure critical flow nozzle is disclosed. A high pressure gas flows through a first critical flow nozzle. Upstream of the first critical flow nozzle a small slip-stream of gas is removed... | 06/28/1988 |
| 4723437 | Sprayer and nozzle calibrator By both an apparatus and a method for calibrating spray and nozzle equipment a temporary connection to such equipment is made and the flow of fluid is measured. Connection to the equipment is accomplished manually with an elastic doughnut having a progres... | 02/09/1988 |
| 4706492 | Method and apparatus for determining real gas effects in critical flow nozzles A method and apparatus for determining the gas flow rate in a high pressure critical flow nozzle is disclosed. A high pressure gas flows through a first critical flow nozzle. Upstream of the first critical flow nozzle a small slip-stream of gas is removed... | 11/17/1987 |
| 4645174 | Mounting arrangement for a critical flow device An axial flow valve has its cage bolt replaced by a sonic nozzle. This device may then be permanently installed in a pipeline in series with a meter to provide the facility for on site calibration of the meter.... | 02/24/1987 |
| 4590790 | Method for determining the accuracy of a gas measurement instrument A meter in a high pressure gas pipeline is calibrating using a sonic nozzle in series with the meter. A bypass line is run where measurements are made to determine gas composition dependent factors for use in defining the flow through the nozzle.... | 05/27/1986 |
| 4569227 | Test station for fuel injection pump A test station for fuel injection pump includes a test container enclosing an air space into which a fuel injection nozzle under test opens. A microphone communicates with the air space to convert air pressure pulses resulting during each injection into a... | 02/11/1986 |
| 4509371 | Venturi flow measuring device and method A planar venturi is located at the discharge of an air conditioning unit to form a part of the unit and to stabilize flow. A plurality of sensor locations are provided in the diverging portion of the venturi such that a velocity sensor can be located in t... | 04/09/1985 |
| 4343177 | Flow compensated gas comparison probe A gas comparison probe contains first and second sensor elements isolated om each other. Air is drawn across a surface to be monitored and directed onto the first sensor element. Air is drawn from a location spaced away from the surface to be monitored an... | 08/10/1982 |
| 4264961 | Air flow rate measuring apparatus An apparatus for measuring the flow rate of suction air in an internal combustion engine in which the heat radiation characteristic of a heat generator disposed in the suction air passage, which characteristic varies with the lapse of time due to dust and... | 04/28/1981 |
| 4254653 | Electromagnetic fuel injector calibration A high flow rate electromagnetic injector valve with a rapid response time and a method for calibrating such injector is disclosed for utilization in a single point fuel injection system. Centrally bored end caps are fixed at the front and rear ends of a ... | 03/10/1981 |
| 4194386 | Variable area metering tube and method of manufacture A variable area metering tube is described having a non-linear graduated measuring scale wherein the scale compensates for non-standard variations in the cross-sectional flow area of the metering tube.... | 03/25/1980 |
| 4184367 | Nipple flow rate tester An apparatus which can accurately determine the flow rate through a nipple orifice such as nipples which are used in conjunction with baby bottles. The testing apparatus utilizes a purging nozzle which will expel air into the nipple so as to remove any pa... | 01/22/1980 |
| 4063449 | Air gauge for nozzle assemblies Apparatus for measuring the flow area of a nozzle assembly is particularly applicable to structures such as jet engine nozzle assemblies or guide vane assemblies wherein a plurality of vanes or airfoil elements are supported in radially spaced apart relat... | 12/20/1977 |
| 4027523 | Methods and apparatus for proof testing gas meters There is disclosed herein methods and apparatus for proof testing fluid meters, particularly gas meters of the positive displacement, diaphragm-operated type in which the number of cycles of operations of the valve mechanism of the meter is used as a fact... | 06/07/1977 |
