Back to results
US 2009/0288495 A1Published application
Magnetic drive assembly for petroleum and lpg meter
AssigneeActaris Metering Systems
InventorWilliam Rodney Cooper
Life of this patent
Estimating the term…
Abstract
A metering system for measuring a flow of petroleum and LPG. In embodiments of the invention, a magnetic drive is used to couple a measuring chamber, such as a known oscillating piston system, to a register or indicator, avoiding leakage and excessive wear due to passing a shaft through the wall of the chamber.
Claims6
A meter for measuring a flow of petroleum or LPG comprising:
- a closed measurement chamber having a case and being adapted for providing internal rotational motion proportional to the flow;
- a register or indicator for translating the rotational motion into a read-out;
- and
- a magnetic drive to couple the measuring chamber to the register or indicator, such that the rotational motion is passed via magnetic coupling from the measurement chamber to the register or indicator through a closed portion of the measurement chamber case.
1 more element
Dependencies are inferred from the claim text.