| VA, Inc. Patent applications |
| Patent application number | Title | Published |
|---|
| 20110242636 | SHUTTER ASSEMBLY WITH ROTATING MAGNET - A shutter assembly includes a base having a stop and a central aperture, a permanent magnet rotatably mounted on the base, and a shutter blade directly mounted on the magnet and configured to move between an open position exposing the aperture and a closed position blocking the aperture. The magnet contacts the stop in the open and closed positions. | 10-06-2011 |
| 20110206362 | SHUTTER DAMPING ASSEMBLY - A rotary photographic shutter includes a base plate, a rotating ring, a plurality of shutter blades pivotally connected to the base plate, and moveable between an open position and a closed position in response to rotation of the ring, and an actuation assembly connected to the base plate, the actuation assembly includes a drive arm operable to selectively rotate the ring. The exemplary rotary photographic shutter also includes a bumper assembly comprising at least one resilient element fixedly disposed with respect to the base plate. The drive arm impinges the resilient element when the plurality of shutter blades is in the open and closed positions, and the drive arm is isolated from contact with the resilient element when the plurality of shutter blades is between the open and closed positions. The exemplary rotary photographic shutter also includes a damper fixedly disposed with respect to the base plate such that at least one shutter blade of the plurality of shutter blades impinges the damper at the open position and is isolated from contact with the damper at the closed position. | 08-25-2011 |
| 20090232489 | SHUTTER ACTIVATION SYSTEM - A method of controlling a plurality of shutter blades includes providing a shutter assembly including a solenoid having a first magnetic pole, a second magnetic pole, and a gap between the first and second poles. The shutter assembly also includes a permanent magnet moveable within the gap in a path coplanar with the solenoid, wherein movement of the permanent magnet transitions the plurality of shutter blades between an open position exposing a central opening of the shutter assembly and a closed position. The method also includes moving the plurality of shutter blades between the open and closed positions, and reducing an electrical signal applied to the solenoid while the plurality of shutter blades is in transit between the open and closed positions. | 09-17-2009 |
| 20090232488 | SHUTTER ACTIVATION SYSTEM - A shutter includes at least one shutter blade, a magnet moveably connected to the at least one shutter blade, and a solenoid defining a gap between a first pole and a second pole. The solenoid is configured to controllably draw the magnet into the gap in a first state and to controllably repel the magnet from the gap in a second state. | 09-17-2009 |
| 20090162050 | NON CONTACT SHUTTER ACTIVATION SYSTEM AND METHOD - A method of controlling a plurality of shutter blades activated by a solenoid to move the plurality of shutter blades between an open position and a closed position includes reducing an electrical signal applied to the solenoid while the plurality of shutter blades is in transit between the open position and the closed position. | 06-25-2009 |
