Abstract: A diaphragm and valve assembly using the same for controlling fluid flow from a pressurized source of fluid. The diaphragm is longitudinally perforated at a peripheral area to permit axial flow of the fluid past the diaphragm, and is radially perforated to provide ambient atmospheric pressure on the downstream side of the diaphragm. The valve assembly is of the type which regulates fluid flow in response to pressure changes occurring at the fluid source which pressure changes result from ambient temperature changes thus establishing a preset fluid flow rate which persists throughout a wide range of ambient temperatures.

Abstract: A valve assembly for providing a measured amount of fluid under pressure from a bulk supply thereof. The bulk supply has a valved outlet which may be opened by a probe. The probe is slidably disposed in a valve housing which also contains a fluid measuring chamber. A valved outlet passage leads from the measuring chamber to an outlet adapted to receive a fluid line. The outlet passage and outlet are offset from the probe so that dispensed fluid does not pass through the probe or probe passage. The outlet passage valve is normally open but is closed when the probe is moved to open the bulk supply outlet valve. A rocking lever connects the probe and outlet passage valve to open and close the latter.