(under subclass 72) Apparatus which includes a means for controlling the fluid flow in response to a change in condition in addition to the control in response to the fusion or destruction of the heat destructible element.
(1) Note. See the class definition, section 3 for search notes on plural automatic controls in fluid handling devices.
SEE OR SEARCH THIS CLASS, SUBCLASS:
75+, for safety cut-offs operated by fusible means but without responding to a second sensing means.
