Measuring and testing – Sheet – woven fabric or fiber
Reexamination Certificate
2007-09-25
2007-09-25
Lefkowitz, Edward (Department: 2855)
Measuring and testing
Sheet, woven fabric or fiber
C073S865800
Reexamination Certificate
active
11165523
ABSTRACT:
An apparatus for monitoring a thickness of a film in motion. The apparatus comprises a roller for receiving and supporting the film in motion, the roller being adapted to rotate about an axis of rotation. The apparatus also comprises a position detector for detecting when the roller is in a specific angular position as the roller rotates about the axis of rotation. The apparatus further comprises a measurement unit aligned with a specific portion of the roller and coupled to the position detector. The measurement unit is responsive to a detection of the roller being in the specific angular position to measure the thickness of the film.
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Avestor Limited Partnership
Kirkland, III Freddie
Lefkowitz Edward
Osler Hoskin & Harcourt LLP
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