US PATENT SUBCLASS 49 / 206
.~.~.~ Actuating spring codirectional with or acts on links

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

197  DF  UP-AND-OVER TYPE; E.G., MOVES FROM VERTICAL TO WITHDRAWN HORIZONTAL OVERHEAD POSITION {4}
203  DF  .~ On lever or link {1}
204  DF  .~.~ Pivoted at closure {2}
206.~.~.~ Actuating spring codirectional with or acts on links

DEFINITION

Classification: 49/206

(under subclass 204) Device provided with resilient means which assist in moving the closure and wherein said means extends in substantially the same directions as the arm or wherein the force of the spring is transmitted through the link to the closure.

SEE OR SEARCH THIS CLASS, SUBCLASS:

205, for a spring acting co-directionally with or on one of a plurality of angularly related links.

SEE OR SEARCH CLASS

160, Flexible or Portable Closure, Partition, or Panel,

191, and 192 for a spring operating means which moves a plural strip type panel to a horizontal overhead position.