Patent ID: 9631959
Date: 2017-04-25
CPC Classifications: F15D,G01F

Claim:
1. A throttling block for a flow meter comprising: a first flat surface, which is inclined relative to a longitudinal axis of a pipe so as to reduce a cross-sectional area available for flow in the pipe from an unthrottled cross-sectional area to a throttled cross-sectional area; a second flat surface adjoining the first flat surface and extending parallel to the longitudinal axis, so as to maintain the throttled cross-sectional area substantially constant; an aperture in the second flat surface, wherein the aperture is shorter in a direction parallel to the longitudinal axis than in a direction perpendicular to the longitudinal axis; and a third flat surface adjoining the second flat surface and inclined relative to the longitudinal axis so as to increase the cross-sectional area available for flow in the pipe from the throttled cross-sectional area to a cross-sectional area that is less than the unthrottled cross-sectional area.