Patent ID: 7836911
Filing Date: 2010-11-23
Classification: G05D,Y10T

Abstract:
1. A regulator comprising: a body having a longitudinal axis and inner walls, the inner walls defining at least engagement walls, piston chamber walls, piston stem guide walls, and a piston stem port; spring means biasing a piston towards engagement walls; a valve and piston assembly, including a piston having a body and piston head, the piston body having a piston stem, the piston stem having a channel therein, the piston head having a crown and having a valved opening and outer walls, the piston body also having an inner volume in fluid communication with the channel and the valved opening, the piston and valve assembly further including a plug, the plug having a plug body dimensioned for receipt substantially within the inner volume of the piston body and a plug arm, the plug arm extending through the valved opening for engagement with the engagement walls of the body, the valve and piston assembly further including a keeper spring for acting between the piston body and the plug to urge the plug towards the valved opening; and; sealing means between the piston head and the inner walls of the body;