Fluid meters and pumps
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United States of America Patent
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Oct 22, 1996
Grant Date -
N/A
app pub date -
Nov 21, 1994
filing date -
Sep 22, 1992
priority date (Note) -
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Abstract
A volumetric water meter of the type having an eccentric piston oscillating in a cylindrical chamber has a drive peg (64) on the piston engaging a rotor arm (50) which rotates about the chamber axis to drive an external register or the like. The drive peg is offset from the piston axis by that amount necessary to compensate for the periodic variation in angular velocity of the piston. The likelihood of the peg becoming disengaged from the rotor arm is thus considerably reduced.
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