(under subclass 17) Subject matter wherein the automatic control means include (1) means responsive to the rate of change of a condition are provided for modifying the response
of a control device or (2) means are provided for minimizing or eliminating the tendency of a control device to hunt.
(1) Note. In most cases anti-hunt devices are responsive to rate of change and most rate of change responsive devices are used for anti-hunt purposes. However, the two devices may have other applications.
SEE OR SEARCH CLASS
318, Electricity: Motive Power Systems,
141+, for generator fed motor systems having generator control including antihunt or rate of change, response, and subclasses 611+, for electric motor position servomechanisms.
320, Electricity: Battery or Capacitor Charging or Discharging, appropriate subclass for a battery or capacitor charging or discharging system with automatic control responsive to a rate of change of condition. 333, Wave Transmission Lines and Networks,
19, for differentiating or integrating networks of the passive type.
