Patent ID: 7111520
Filing Date: 2006-09-26
Classification: G01F

Abstract:
1. A meter that measures the flow of a liquid or vapor, comprising: an outer housing comprised of a low permeable material forming an inlet port on one end of said outer housing and an outlet port on the other end of said outer housing; a shaft supported inside said outer housing along an axis parallel to said outer housing; a rotational component mounted on said shaft, wherein said rotational component rotates when the liquid or vapor flows through said inlet port; an orifice contained in said outer housing that forms a first port wherein a first end of said orifice extends outward to the outer surface of said outer housing, and said second end of said orifice extends down to a higher permeable inner housing proximate to said rotational component; and a first sensor that is mounted within said first port to detect the rotation of said rotational component through said inner housing as said rotational component rotates.