US PATENT SUBCLASS 250 / 231.17
.~.~.~.~.~.~ With means to indicate a complete shaft rotation

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


250 /   HD   RADIANT ENERGY

200  DF  PHOTOCELLS; CIRCUITS AND APPARATUS {11}
216  DF  .~ Optical or pre-photocell system {11}
229  DF  .~.~ Light valve (e.g., iris diaphragm) {3}
231.1  DF  .~.~.~ Actuated by dynamic external physical quantity {4}
231.13  DF  .~.~.~.~ Shaft angle transducers {1}
231.14  DF  .~.~.~.~.~ Incremental shaft readers; i.e., with means to generate increments of angular shaft rotation {4}
231.17.~.~.~.~.~.~ With means to indicate a complete shaft rotation

DEFINITION

Classification: 250/231.17

With means to indicate a complete shaft rotation:

(under subclass 231.14) Subject matter in which means are provided to determine whether a complete revolution of the shaft has occurred and to generate a signal representative of that fact.

(1) Note. The provision of means to determine the number of complete revolutions is also included in this subclass.