US PATENT SUBCLASS 212 / 279
.~ Sensor regulates counterweight or counterbalancing means

Current as of: June, 1999
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212 /   HD   TRAVERSING HOISTS

276  DF  HAVING RANDOM CONDITION SENSOR COMBINED WITH AN INDICATOR OR ALARM OR CONTROLLING MEANS OR DISABLING MEANS {5}
279.~ Sensor regulates counterweight or counterbalancing means

DEFINITION

Classification: 212/279

Sensor regulates counterweight or counterbalancing means:

(under subclass 276) Subject matter wherein the detecting means and the controller governs either (a) the movement of a mass employed to offset the weight of the load or (b) operation of a dynamic device to exert a force in opposition

to that exerted by the load.

SEE OR SEARCH THIS CLASS, SUBCLASS:

195+, for other apparatus having a counterweight or counterbalancing means.