(under subclass 445) Subject matter in which the sensing means is responsive to the rate-of-change of a condition (e.g., from 72 deg. F to 73 deg. F in 10 minutes, four (4) pounds pressure change per hour, etc.).
(1) Note. Means responsive to rate of change of position (i.e., the speed) of the motor or other body are not included herein but will be found herein below. See subclass 461. However, means responsive to rate-of-change of speed (i.e., acceleration) are classified herein.
SEE OR SEARCH THIS CLASS, SUBCLASS:
461, see Note 1 above.
SEE OR SEARCH CLASS
322, Electricity: Single Generator Systems,
19, for rate of change responsive generator control. 333, Wave Transmission Lines and Networks,
19, for differentiating or integrating networks of the passive type.
