Flexible or portable closure – partition – or panel – Pleating type – With power operating means
Patent
1999-01-09
2000-09-12
Johnson, Blair M.
Flexible or portable closure, partition, or panel
Pleating type
With power operating means
160310, 49 28, 318434, 318469, A47H 500
Patent
active
061163201
ABSTRACT:
An automatic window shade system is disclosed which can react to end points and obstructions through a torque sensing arrangement. This torque sensing can be accomplished through use of an electromagnetic interference device so that a change in torque is immediately detected and a modulation in operation of the shade can be effected. Rotating pitched disks elastically connected to each other can be used to act as the torque sensor for this an other applications. Multiple elastic elements can permit multiple location sensing as well as non-zero torque sensing and reaction.
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Barker Holding Company, LLC
Johnson Blair M.
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