Pressure Regulating Device

A method of inflating an inflatable object, the method comprising:

• conveying gas from an inlet of an inflation device to an outlet of the inflation device, the inlet fluidly-coupled to the outlet by interior surfaces of the inflation device that define a gas-delivery pathway;
• while conveying the gas, creating a region of low pressure at an opening along the gas-delivery pathway, the opening adjacent to and downstream of a flow restriction in the gas-delivery pathway;
• receiving at least a portion of the conveyed gas into a first chamber of a gas-exhaust pathway, the first chamber of the gas-exhaust pathway in fluid communication with the opening, the gas-exhaust pathway defined by interior surfaces of the inflation device;
• opening a pressure-relief valve inside the inflation device when gas pressure in the first chamber exceeds a relief pressure, the pressure-relief valve allowing gas to flow from the first chamber to a second chamber of the gas-exhaust pathway when open;
• and
• exhausting gas through a vent port of the inflation device in response to gas flowing into the second chamber, the vent port in fluid communication with the second chamber.

A method of inflating a sports ball, comprising:

• transporting gas from a pump, through an inflation device, into the sports ball;
• by operation of the inflation device, detecting a pressure of gas in the sports ball;
• and
• by operation of the inflation device, generating an audible signal in response to the detected pressure of gas exceeding a threshold value.