Patent ID: 8522809

Claim:
A gas regulator comprising: a body having an inlet and an outlet; a gas regulating assembly disposed in the body and configured to regulate output pressure of gas delivered to the outlet reduced from inlet pressure of the gas at the inlet; and a bonnet comprising a moldable synthetic plastic material, the bonnet being coupled to the body over the gas regulating assembly and being configured to contain one or more components of the gas regulating assembly, wherein the bonnet comprises: a skirt portion configured to secure the bonnet to the body; a base portion extending from the skirt portion and having at least one aperture disposed on an upper surface of the base portion for venting gas in the event of overpressurization of the gas regulator; and an extension extending from the upper surface of the base portion, being adjacent to the at least one aperture, and having an opening extending axially throughout the extension, wherein, in the event of overpressurization of the gas regulator, the opening is configured to receive at least a portion of a collapsed diaphragm, a collapsed diaphragm washer, a collapsed backup plate, or a combination thereof, to enable gas to pass into the bonnet and vent through the at least one aperture.