(under subclass 38) Apparatus which includes, in addition to the control responsive to the position or inertia of the system as a whole, a second means for operating the control means.
(1) Note. The second control may be manual or operated in response to some other condition, such as pressure, temperature, etc.
(2) Note. This subclass also provides for systems including means to neutralize or overcome the effect of a change of position on a second flow control.
(3) Note. See the class definition, section 3, for search notes on combined automatic and manual control of fluid handling systems.
