Patent ID: 6680594
Filing Date: 2004-01-20
Classification: E06B

Abstract:
An apparatus for moving a window covering, comprising:an electric motor, a drive shaft operably connected to the motor, and to the window covering, a sensing mechanism coupled to one of the window covering or the motor for sensing a disturbance exerted on said window covering, electronic circuit coupled to said sensing mechanism and said electric motor for controlling the movement of said window covering in response to a detection of a disturbance by said sensing mechanism, wherein said electronic circuit includes means for controlling said motor to move in a first direction in response to a detection of a first disturbance by said sensing mechanism, thereafter, in response to a detection of a second disturbance by said sensing mechanism, said means for controlling said motor stops all movement of said motor, thereafter, in response to a detection of a third disturbance by said sensing mechanism, said means for controlling said motor moves said motor in a second direction, wherein said first and second directions are opposite to one another, wherein said sensing mechanism is a selected from the set including, strain gauges, spring loaded switches, or torque sensing devices, wherein said sensing mechanism is attached at least one of a head rail which houses said motor, a control wand attached to said window covering, or a moving rail portion of said window covering.