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US 5,467,533 AGranted
Night vision inclinometer
AssigneeAvionic Displays Corporation
InventorWilliam R. Dunn
Life of this patent
Estimating the term…
Abstract
An inclinometer which is compatible for use with night vision equipment on aircraft and other vehicles. The inclinometer includes a white zirconia sphere movable within a damping liquid of a liquid capsule.
Claims6
An inclinometer, comprising:
- a body portion;
- a capsule secured within said body portion, said capsule having at least a portion thereof made of clear material;
- a damping fluid contained within the capsule;
- a light source in association with the capsule;
- a white zirconia ball movable within the damping fluid within the capsule.
2 more elements
An inclinometer, comprising:
- a sealed capsule made of glass and having a viewing area therein;
- a damping fluid contained within the capsule;
- a white zirconia sphere movable within the damping fluid and visible within the viewing area of the capsule;
- and, two lamps, one lamp situated at each end of the liquid capsule.
1 more element
Dependencies are inferred from the claim text.