Shutter with bistable actuator having power-free magnetic blade return

Shutter with bistable actuator having power-free magnetic blade return

The instant invention teaches a monostable shutter with magnetic blade return using a bistable actuator with blade motion constrained to provide drive force in a single direction and permits the use of compact bistable coil for continuous use by a circuit that applies a high voltage at the beginning...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: STEPHENSON STANLEY W
Format: Patent
Sprache:eng
Schlagworte:
ACCESSORIES THEREFOR
APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES
APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM
CINEMATOGRAPHY
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
DYNAMO-ELECTRIC MACHINES
ELECTRICITY
ELECTROGRAPHY
GENERATION
HOLOGRAPHY
PHOTOGRAPHY
PHYSICS
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Beschreibung
Zusammenfassung:The instant invention teaches a monostable shutter with magnetic blade return using a bistable actuator with blade motion constrained to provide drive force in a single direction and permits the use of compact bistable coil for continuous use by a circuit that applies a high voltage at the beginning of drive that decays to a lower voltage to prevent coil burn out.