Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
David Michael Krieger0
Stephen T. Pasquarella0
Helen Hong Yan0
David Viglione0
Date of Patent
February 18, 2014
Patent Application Number
13524738
Date Filed
June 15, 2012
Patent Primary Examiner
Patent abstract
A shutter includes a driver ring, a plurality of shutter blades coupled to the drive ring such that movement of the drive ring transitions the plurality of shutter blades between an open position exposing a central aperture of the shutter, and a closed position blocking the central aperture, and a first stop and a second stop movable relative to the first stop. At least one of the first and second stops limits travel of the shutter blades.
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