US PATENT SUBCLASS 212 / 281
.~ Hoisting stops upon load being raised to a predetermined position (e.g., anti-two block)

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

Internet Version by PATENTEC © 1999      Terms of Use


212 /   HD   TRAVERSING HOISTS

276  DF  HAVING RANDOM CONDITION SENSOR COMBINED WITH AN INDICATOR OR ALARM OR CONTROLLING MEANS OR DISABLING MEANS {5}
281.~ Hoisting stops upon load being raised to a predetermined position (e.g., anti-two block)

DEFINITION

Classification: 212/281

Hoisting stops upon load being raised to a predetermined position (e.g., anti-two blocking):

(under subclass 276) Subject matter wherein the raising or lowering of a load lifting cable is halted in response to the load being moved to a predetermined position.

SEE OR SEARCH THIS CLASS, SUBCLASS:

280, for boom raising or lowering to a predetermined position.

SEE OR SEARCH CLASS

254, Implements or Apparatus for Applying Pushing or Pulling Force,

269, for winches with stop means on the hoistrope.