US PATENT SUBCLASS 49 / 6
.~.~ Overbalanced by released weight supplementing counterweight

Current as of: June, 1999
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49 /   HD   MOVABLE OR REMOVABLE CLOSURES

1  DF  THERMAL RELEASER OR ACTUATOR {5}
5  DF  .~ Terminates counterweight condition {1}
6.~.~ Overbalanced by released weight supplementing counterweight

DEFINITION

Classification: 49/6

(under subclass 5) Device wherein the thermally responsive device releases a weight which, together with the counterweight, overcomes the weight of the closure to move it.