US PATENT SUBCLASS 248 / 406.2
.~.~.~.~.~.~ Weight or load responsive

Current as of: June, 1999
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248 /   HD   SUPPORTS

127  DF  STAND {14}
158  DF  .~ Standard type {4}
161  DF  .~.~ Adjustable vertically {6}
404  DF  .~.~.~ With force multiplying means {1}
405  DF  .~.~.~.~ Screw and nut {1}
406.1  DF  .~.~.~.~.~ With rotation prevention disabler {1}
406.2.~.~.~.~.~.~ Weight or load responsive

DEFINITION

Classification: 248/406.2

Weight or load responsive:

(under subclass 406.1) Structure wherein the means for locking and/or unlocking is responsive to a weight or load or the absence thereof on the article support.

(1) Note. This subclass includes devices wherein an adjustment means for the locking means is actuated by the weight or load as well as those devices wherein the locking means is actuated directly.