Patent ID: 9711809
Date: 2017-07-18
CPC Classifications: F17C,G05D,H01M,Y02E

Claim:
1. A pressure regulator comprising: a movable shuttle disposed between a high pressure diaphragm and a low pressure diaphragm; a shuttle housing to house the shuttle; a conduit connecting an inlet to an outlet, wherein the high pressure diaphragm is located proximate to the inlet and the low pressure diaphragm is located proximate to the outlet; and, a temperature sensitive component comprising a shape memory alloy material disposed within the pressure regulator, in thermal communication with a fuel cell or electronic device so that when the temperature of the pressure regulator reaches a predetermined level, the temperature sensitive component changes its shape to render the pressure regulator inoperative; wherein the shape memory alloy material comprises a wire having a relatively thin shape at temperatures below the predetermined temperature level and a relatively thicker shape at temperatures greater than or equal to the predetermined temperature level.