Patent ID: 9670722
Date: 2017-06-06
CPC Classifications: E06B

Claim:
1. A window covering comprising: a headrail; a stationary portion that attaches to an end of the headrail of the window covering; a moveable portion that contacts an inside of a window casing extendable from the stationary portion; a first crankshaft member that, upon rotation, translates the moveable portion relative to the stationary portion; a second crankshaft member that, upon rotation, translates the moveable portion relative to the stationary portion, wherein a rotational axis of the first crankshaft member is offset from a rotational axis of the second crankshaft member; and a lever arm attached to the first crankshaft member, wherein as the lever arm is moved the second crankshaft member rotates and pushes against the moveable portion to create a compression fit between the headrail and the window casing by extending the moveable portion away from the end of the headrail.