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US 6,995,377 B2Granted
Process and apparatus for testing bottles
AssigneePlastipak Packaging, Inc.
InventorsRichard C. Darr, Joy Lynn Hubbard, Thomas Jackson Simpson
Life of this patent
Estimating the term…
Abstract
Process and apparatus for testing the coating thickness on a container by shining ultraviolet light through the container to at least one sensor.
Claims20
Process for testing the thickness of a coating on a container, which comprises:
- providing a container having a carbon coating on the internal surface of the container;
- positioning means inside the container which shines ultraviolet light through the container;
- positioning at least one ultraviolet light sensor outside of the container and passing the ultraviolet light from the inside of the container through the container to the sensor;
- and determining the thickness of the coating by said at least one sensor which determines how much light passes through the container.
1 more element
Apparatus for testing the thickness of a coating on a container, which comprises:
- a container having a carbon coating on the internal surface of the container;
- means inside the container which shines ultraviolet light through the container;
- at least one ultraviolet light sensor outside of the container, wherein said ultraviolet light passes from the inside of the container through the container to the sensor;
- wherein said sensor is operative to determine how much light passes through the container, thereby determining the thickness of the coating.
1 more element
Dependencies are inferred from the claim text.