G - Physics – 01 – F
Patent
G - Physics
01
F
73/144
G01F 3/08 (2006.01) G01F 1/22 (2006.01)
Patent
CA 1275584
Abstract of the Disclosure A flow meter for measuring the flow rate of fluid in a fluid system includes a transparent tubular housing in which an indicator in the form of a piston having a radially expanded edge is acted upon by fluid flowing through the meter. At least a portion of the inner peripheral wall of the housing is tapered so that fluid can pass by the piston as the piston is displaced by the fluid. The housing can include scale indicia of flow rates coinciding with positions of the indicator edge. In addition, a temperature sensitive label providing a visible indication of fluid temperature can be orthogonally aligned with respect to the flow rate scale on the flow meter to permit accurate placement of a graphic overlay exhibiting representations of a different fluid characteristic which varies with changes in the flow rate and temperature of the fluid within the ranges indicated by the meter. Projection temperature indication up to the position of the indicator edge identifies a particular value for the fluid characteristic shown on the graphic representation by mere observation rather than complicated analysis of the flow rate and temperature values of the fluid. The range of flow rates indicated by the meter is governed by the amount of taper in at least a portion of the inner peripheral wall of the tubular housing, and the inner periphery of the housing includes a radially expanded portion at one end to provide a bypass for fluid at flow rates greater than the normal range for the meter.
498921
Smart & Biggar
Universal Flow Monitors Inc.
LandOfFree
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