Optics: measuring and testing – For light transmission or absorption – Of fluent material
Reexamination Certificate
2005-05-31
2005-05-31
Pham, Hoa Q. (Department: 2877)
Optics: measuring and testing
For light transmission or absorption
Of fluent material
C250S339010, C250S339050
Reexamination Certificate
active
06900893
ABSTRACT:
A device for measuring particulate matter includes a light source that emits light, a receiver positioned to receive light emitted from the light source, and a detection unit in communication with the receiver. The detection unit detects an amount of particulate matter based upon the light received by the receiver.
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DiDomenico John
Foley Theresa A.
Gentala Robert A.
Rendahl Craig S.
Baker & Hostetler LLP
Pham Hoa Q.
SPX Corporation
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