US PATENT SUBCLASS 187 / 317
.~.~.~ Includes object detecting sensor or switch on barrier

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

Internet Version by PATENTEC © 1999      Terms of Use


187 /   HD   ELEVATOR, INDUSTRIAL LIFT TRUCK, OR STATIONARY LIFT FOR VEHICLE

313  DF  WITH BARRIER FOR REGULATING ACCESS TO LOAD SUPPORT {4}
315  DF  .~ Includes motor or motor driven linkage for shifting barrier {3}
316  DF  .~.~ With specific electrical control therefor {1}
317.~.~.~ Includes object detecting sensor or switch on barrier

DEFINITION

Classification: 187/317

Includes object detecting sensor or switch on barrier:

(under subclass 316) Subject matter wherein the information input component of the control* is carried by the path blocking means and includes circuit making and breaking means which contacts, or otherwise determines the physical presence of, an object obstructing the course along which the path blocking means moves.

SEE OR SEARCH CLASS

49, Movable or Removable Closures,

26+, for safety means responsive to an obstruction in the path of a closure.

200, Electricity: Circuit Makers and Breakers,

61.43, for a sensitive edge type feeler, per se, intended to be mounted on a closure and to detect an object in its path.