Industry Patents
Patent: 6939026
Shutter Assembly for a Luminaire
(Click image for PDF of full patent)
| Patent Number: |
6939026 |
| Title: |
Shutter Assembly for a Luminaire |
| Abstract: |
A shutter section includes a stack of circular plates independently
rotatable in a nest formed as a laminar formation of rings. The plates
have central openings defining a light path. Four central plates in the
stack are shutter guide plates with radial guide slots slideably holding
shutter blades. Two outer pairs of plates are shutter drive plates
connected by cams to the shutter blades. Simultaneous rotation of a
shutter guide plate and associated shutter drive plate causes rotation of
an associated shutter blade around the light path. Rotation of a shutter
drive plate while the associated shutter guide plate is stationary causes
the cam to move the associated shutter blade radially. The nest is
enclosed by end plates. A motor section has motors driving pinions to
rotate the circular plates. The circular plates, rings pinions and shutter
blades are made of sheet metal.
|
| Country of Issue: |
US |
| First Named Inventor: |
Gennrich, Roberts |
| Assignee: |
Electronic Theatre Controls |
| Continuation or Divisional of: |
|
| International Classification: |
F21V 17/02 |
| US Classification: |
362/322 |
| Issue Date: |
09-06-2005 |
| Filing Date: |
08-28-2003 |
| Application : |
10/651273 |
| Notes: |
|
| Link to Patent at freepatentsonline.com: |
6939026 at Freepatentsonline |
| Link to World Patent Family1: |
World Patent Family at European Patent Office |
| Link to Google Patents1: |
6939026 at Google Patents |
1. The Google Patents and World Patent Family links will likely not work until a few weeks
after the patent has issued - they take a while to get new patents in their systems.
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