Patent ID: 8122912
Filing Date: 2012-02-28
Classification: G05D,Y10T

Abstract:
1. A gas flow restrictor for use in a natural gas line supplying natural gas to appliances in a building at a given pressure, the gas flow restrictor comprising: a one-piece, unitary cylindrical body having a closed end and threads adapted for mounting the cylindrical body to the gas line, the closed end having a plurality of orifices defined therein, wherein each of the orifices has a distinct size; a plurality of removable plugs angularly spaced around the closed end, each of the plugs being insertably mounted and fitted within a corresponding one of the orifices, each of the orifices being dimensioned to provide a predetermined gas flow at a pressure less than the given pressure; and a slot centrally disposed in the closed end for accommodating a tool for installation; wherein selective removable of at least one of the plugs restricts gas flow to a desired pressure level less than the given pressure to facilitate efficient use of the supplied natural gas.