Electric heating – Heating devices – Combined with diverse-type art device
Reexamination Certificate
2005-05-03
2005-05-03
Jeffery, John A. (Department: 3742)
Electric heating
Heating devices
Combined with diverse-type art device
C219S522000, C219S543000, C600S529000, C073S023300, C073S031050, C128S200240
Reexamination Certificate
active
06888101
ABSTRACT:
A heater for a window of an optical gas sensor is provided. The heater may be positioned over a portion of the window or may form at least a portion of the window. Alternatively, the heater may be separate from the optical gas sensor and positionable (e.g., by a transducer) over the window either in contact therewith or in close proximity thereto. The heater may be substantially transparent to the relevant wavelengths of electromagnetic radiation that are used in optical (e.g., infrared or luminescence quenching) monitoring of respiratory gases, anesthetic agents, or the like. Alternatively, the heater may be configured so as to provide a substantially unobstructed optical pathway through the window. Optical gas sensors and complementary transducers that include the healer are also disclosed.
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U.S. patent application Ser. No. 09/128,897, filed on Aug. 4, 1998.
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Jeffery John A.
Respironics Inc.
TraskBritt
LandOfFree
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