G - PHYSICS
G01 - MEASURING
G01F - MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL
G - PHYSICS
G01 - MEASURING
G01P - MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK
G - PHYSICS
G01 - MEASURING
G01F - MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL
G01F1/00 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through the meter in a continuous flow
G01F1/363 - {with electrical or electro-mechanical indication
G01F1/38 - the pressure or differential pressure being measured by means of a movable element, e.g. diaphragm, piston, Bourdon tube or flexible capsule
G01F15/005 - {Valves
G - PHYSICS
G01 - MEASURING
G01P - MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK
G01P13/0066 - {by using differences of pressure in the fluid}
Y - NEW / CROSS SECTIONAL TECHNOLOGIES
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T137/7789 - With Venturi tube having a connection to throat
Y10T137/7792 - Movable deflector or choke