DISPOSITIVO AUTOMATICO CAPAZ DE INICIAR A DESCARGA DE UM LIQUIDO OU DE UM GAS CONTIDO EM SEU SISTEMA PRESSURIZADO QUANDO UM VARIAVEL, QUE SE ESTA CONTROLANDO POR MEIO DE RECEPTORES LIGADOS AO DISPOSITIVO, ATINGE DETERMINADO VALOR

摘要

A mechanism for automatically releasing a pressurized fluid includes a slidable piston to puncture a seal normally closing the fluid outlet, the piston being controlled by the pressure differential between fluids on opposite sides of a cylinder and normally equalized by communication with the pressurized fluid; actuation of the piston results from exposure of one side of the cylinder to atmospheric pressure.