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...that the video game, Pong, was invented by a guy who graduated at the bottom of his engineering class? Nolan Bushnell spent more time running the games at a local amusement park than he did on his studies at the University of Utah. His dreams of working for Disney's amusement empire were dashed when the company wouldn't hire him. Taking a boring job, Nolan daydreamed about electronic versions of popular games. He invented Pong, the first video game, and went on to found Atari Co.

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Class 73/861.84 - Differentially responsive turbines


Subclass of Class 73 - Measuring and testing
Definition: Subject matter wherein at least two freely rotatable turbines
No. of patents: 16
Last issue date: 09/26/2006


NumberTitleIssue Date
7111520Increased sensitivity for liquid meter
A lower cost meter comprised of an inner housing constructed out of a high permeable material surrounded by an outer housing constructed out of a lower cost, lower permeable material. A port is placed in the outer housing that runs down to the surface of the inner h...
09/26/2006
7028561Fuel dispenser fuel meter error detection device, system and method
A flow switch used in conjunction with a fuel meter in a fuel dispenser to determine when fuel is flowing. A flow switch can only be activated if fuel is flowing through the flow path of the flow switch. If fuel is flowing as indicated by the fuel flow switch, but t...
04/18/2006
6996485Nullification of measurement error, particularly within a dual turbine flow meter used in a fuel dispenser
A system and method for correcting a meter calibration curve in a fuel dispenser. The meter may be a turbine flow meter. A meter calibration curve is expressed in a finite number of data points. The meter calibration curve is used to determine the volume and/or flow...
02/07/2006
6959837Dual piston/poppet flow switch
A dual piston/poppet valve in a fuel dispenser works with a two-stage valve to help eliminate errors from an inferential flow meter. When the two-stage valve opens partially, a secondary fuel path is opened in the dual piston/poppet valve. A sensor detects the openi...
11/01/2005
6935356Underground storage tank metering system in a service station environment
A meter coupled in close proximity to an underground storage tank fuel pipe that delivers fuel from the underground storage tank to fuel dispensers in a service station environment. The meter measures the total amount of fuel drawn from the underground storage tank....
08/30/2005
6935191Fuel dispenser fuel flow meter device, system and method
A flow switch used on conjunction with a fuel flow meter in a fuel dispenser to determine when fuel flow rate signals form a fuel flow meter should be ignored in the calculation of flow rate and/or volume of fuel dispensed. An inferential fuel flow meter may be used...
08/30/2005
6929018Underground storage tank metering system in a service station environment
A meter coupled in close proximity to an underground storage tank fuel pipe that delivers fuel from the underground storage tank to fuel dispensers in a service station environment. The meter measures the total amount of fuel drawn from the underground storage tank....
08/16/2005
6865935System and method for steam turbine backpressure control using dynamic pressure sensors
A system (10) controlling operation of a steam turbine (T). Sensors (12) measure dynamic pressure level variations in a stage (S1-Sn) of the turbine. A signal (Ps) from a sensor is converted to a frequency based signal (Fs). A comparator (16
03/15/2005
6651517Fuel dispensing system
A fuel dispensing system employing a dual rotor turbine flow meter is disclosed....
11/25/2003
5689071Wide range, high accuracy flow meter
A turbine type flow meter incorporating an auxiliary turbine ahead of the main turbine, the auxiliary turbine rotating in the opposite direction from that of the main turbine and serving as a flow conditioner, thereby extending the effective range of the ...
11/18/1997
5509305Closely coupled, dual turbine volumetric flow meter
A meter is provided for measuring the volumetric flow of a fluid in a conduit. The meter comprises a pair of turbine assemblies. Each of the turbine assemblies are adapted to have a speed of rotation representative of a volumetric fluid flow that is indep...
04/23/1996
4534226Counter rotating, multi turbine flow measuring system
A volumetric flow measuring system includes two counter-rotating turbines axially displaced along the flow path. Because the turbines rotate in opposite directions, the net change of the sum of the main and sensor turbine signals due to non-axial or "swir...
08/13/1985
4305281Self-correcting self-checking turbine meter
A turbine meter is disclosed in which a sensing rotor downstream from the metering rotor senses changes in the exit angle of the fluid leaving the metering rotor, the output from the sensing rotor being combined with the output from the metering rotor to ...
12/15/1981
4286471Constant accuracy turbine meter
A turbine meter is disclosed in which a sensing rotor downstream from the metering rotor senses changes in the exit angle of the fluid leaving the metering rotor, the output from the sensing rotor being combined with the output from the metering rotor to ...
09/01/1981
4086811System for mounting rotary components
A system for mounting a device comprising two rotors which rotate coaxially in a stator comprising two spaced-apart supports held in the stator, a stationary shaft secured by one of these supports in cantilever manner coaxially with the stator and on whic...
05/02/1978
3934473Fluid flow meter with counter rotating turbine impellers
A fluid flow meter with two independantly counter rotating turbine impellers is disclosed in which fluid characteristics and/or upstream flow disturbances cause minimal variations in volume flow rate measurements by the meter as a result of fluidynamic in...
01/27/1976
 
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