US PATENT SUBCLASS 160 / 9
.~ With releasing means for operator and/or counterbalance

Current as of: June, 1999
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160 /   HD   FLEXIBLE OR PORTABLE CLOSURE, PARTITION, OR PANEL

1  DF  AUTOMATIC CONTROL {5}
9.~ With releasing means for operator and/or counterbalance

DEFINITION

Classification: 160/9

(under subclass 1) Devices wherein the sensing device either (1) releases the bias of a counter-balance means or (2) disconnects the flexible panel operator, to allow the panel to move under the control of gravity.

SEE OR SEARCH THIS CLASS, SUBCLASS:

7, for an additional automatically controlled starter or operator to assist gravity.

8, for an additional retarding means in the combination to control the movement.