US PATENT SUBCLASS 242 / 385.1
.~.~.~ Material movement responsive (e.g., window shade type)

Current as of: June, 1999
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242 /   HD   WINDING, TENSIONING, OR GUIDING

370  DF  REELING DEVICE {11}
371  DF  .~ With spring motor {12}
385  DF  .~.~ Lock against spool winding {2}
385.1.~.~.~ Material movement responsive (e.g., window shade type) {2}
385.2  DF  .~.~.~.~> With additional lock release
385.3  DF  .~.~.~.~> Movable locking pawl on frame

DEFINITION

Classification: 242/385.1

Material movement responsive (e.g., window shade type):

(under subclass 385) Subject matter wherein the winding lock includes an actuator operated in response to either (a) movement of the material, or (b) rotation of the spool, to shift the winding lock between active and inactive positions.