US PATENT SUBCLASS 5 / 166.1
.~.~ Counterbalance weight

Current as of: June, 1999
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5 /   HD   BEDS

131  DF  BEDSTEADS {6}
133  DF  .~ Upending {18}
166.1.~.~ Counterbalance weight {1}
166.2  DF  .~.~.~> Having cord and pulley

DEFINITION

Classification: 5/166.1

Counterbalance weight:

(under subclass 133) Device comprising a mass of material arranged to counteract some portion of an upendable section's weight and assist in the upending operation.

(1) Note. This subclass also includes devices which have some portion of the case or stand moved against gravity as the upended section is lowered.