Bi-stable mechanical photographic shutter
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United States of America Patent
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-
May 6, 2008
Grant Date -
Oct 12, 2006
app pub date -
Apr 6, 2005
filing date -
Apr 6, 2005
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electromagnetically operable rotary shutter is rendered bi-stable by the use of two linear electric motors, one to open the shutter and a second to close the shutter together with a latch that holds the shutter in either an open or a closed position in the absence of power to purposefully open or close the shutter.
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Cited Art Landscape
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