Flow meter
First Claim
1. A flow meter comprising a tubular main-body and a cover plate carrying two pressure sensing devices on one side, wherein the tubular main-body has a venturi tube structure inside having an inlet of convergent shape and an outlet of divergent shape, and a seat is formed on outer surface of the tubular main-body having two separate recessions each of which has a penetrating hole connected separately to the convergent portion and divergent portion of the tubular main-body;
- the cover plate is mounted on the seat to form a cover to the seat; and
the two pressure sensing devices carried on the cover plate are completely and tightly packed with silicon rubber and located separately above the corresponding penetrating hole on the tubular main-body.
1 Assignment
0 Petitions
Accused Products
Abstract
A flow meter comprising a tubular main-body and a cover plate formed by printed circuit board which carries two pressure sensing devices tightly packed by soft rubber material for sensing the pressure head of and the pressure difference between the inlet and outlet of the flow meter. Since the cover plate is mounted on, and fastened to the main-body by fastening screw, but not by adhesive to form a complete unit, the cover plate can therefore bear high fluid pressure without crack or damage, i.e., shall increase the capacity of bearing pressure, the service life and accuracy, and decrease the occurrence of malfunction to the flow meter.
28 Citations
20 Claims
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1. A flow meter comprising a tubular main-body and a cover plate carrying two pressure sensing devices on one side, wherein the tubular main-body has a venturi tube structure inside having an inlet of convergent shape and an outlet of divergent shape, and a seat is formed on outer surface of the tubular main-body having two separate recessions each of which has a penetrating hole connected separately to the convergent portion and divergent portion of the tubular main-body;
- the cover plate is mounted on the seat to form a cover to the seat; and
the two pressure sensing devices carried on the cover plate are completely and tightly packed with silicon rubber and located separately above the corresponding penetrating hole on the tubular main-body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
- the cover plate is mounted on the seat to form a cover to the seat; and
Specification