US PATENT SUBCLASS 246 / 299
.~.~.~ Latch or clutch release

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

Internet Version by PATENTEC © 1999      Terms of Use


246 /   HD   RAILWAY SWITCHES AND SIGNALS

270 R  DF  VEHICLE-ENERGY ACTUATION {11}
292  DF  .~ Signals and gates, automatic {2}
297  DF  .~.~ Track mechanism {7}
299.~.~.~ Latch or clutch release {3}
300  DF  .~.~.~.~> Electric
301  DF  .~.~.~.~> Longitudinal motion
302  DF  .~.~.~.~> Vertical motion

DEFINITION

Classification: 246/299

(under subclass 297) Subject matter including signals or gates which are set and latched in position by moving trains against the force of a spring or gravity, the latch or clutch being released by an approaching or departing train.

SEE OR SEARCH THIS CLASS, SUBCLASS:

238, 244, 258+, 263, 300, and 325, for electric latch and clutch-release mechanism.

301, 302, 324, and 396, for mechanical-latch and clutch-release mechanism.

SEE OR SEARCH CLASS

192, Clutches and Power-Stop Control, appropriate subclasses, for clutch-release mechanism.