Electrical resistors – Resistance value responsive to a condition – Current and/or voltage
Reexamination Certificate
2005-03-01
2005-03-01
Easthom, Karl D. (Department: 2832)
Electrical resistors
Resistance value responsive to a condition
Current and/or voltage
C338S025000, C338S028000, C338S034000, C219S482000
Reexamination Certificate
active
06861939
ABSTRACT:
The operating temperature of a gas sensor capable of sensing a gas or a gas composition at a high temperature, for example 1000° C. is maintained constant over the entire volume of a gas sensor layer or function layer (4) secured to a sensor carrier section of the gas sensor by supplying heat to the gas sensor layer (4) in such a way that varying heat dissipations in the sensor carrier section are compensated. For this purpose, an electrical heater for heating the gas sensor layer (4) has individual heater sections with different heating resistance values which depend on a spacing between any individual heater section and the tip of the sensor carrier section.
REFERENCES:
patent: 4286377 (1981-09-01), Hurko et al.
patent: 4345465 (1982-08-01), Gruner et al.
patent: 4375056 (1983-02-01), Baxter et al.
patent: 4464646 (1984-08-01), Burger et al.
patent: 4654624 (1987-03-01), Hagan et al.
patent: 4719441 (1988-01-01), Horn
patent: 4776943 (1988-10-01), Kitahara
patent: 4825693 (1989-05-01), Bohrer et al.
patent: 4861456 (1989-08-01), Mase et al.
patent: 4883947 (1989-11-01), Murase et al.
patent: 5017340 (1991-05-01), Pribat et al.
patent: 5169512 (1992-12-01), Wiedenmann et al.
patent: 5197804 (1993-03-01), Tani et al.
patent: 5264681 (1993-11-01), Nozaki et al.
patent: 5430428 (1995-07-01), Gerblinger et al.
patent: 5605612 (1997-02-01), Park et al.
patent: 5656987 (1997-08-01), Kubota et al.
patent: 5726624 (1998-03-01), Caffee et al.
patent: 5735606 (1998-04-01), Tani et al.
patent: 5777207 (1998-07-01), Yun et al.
patent: 5823680 (1998-10-01), Kato et al.
patent: 5895591 (1999-04-01), Kojima et al.
patent: 6437981 (2002-08-01), Newton et al.
patent: 4324659 (1995-04-01), None
patent: 19523301 (1997-01-01), None
patent: 19848578 (1999-05-01), None
patent: 19830709 (2000-02-01), None
patent: 0477394 (1992-04-01), None
patent: 0720018 (1996-07-01), None
Kurt Ingrisch et al.; “Chemical Sensors for CO/NOx—Detection in Automotive Climate Control Systems”; SAE Technical Paper Series, No. 960692, International Congress & Exposition, Detroit, Michigan, Feb. 26-29, 1996, pp. 57-65.
K. Ingrisch, “Halbleiter Gassensoren”; K8/STZ2-Ingrisch; Robert Bosch GmbH, Oct. 27, 1997, TAE Essingen, Germany.
Bischof Michael
Kessler Burkhard
Moos Ralf
Mueller Ralf
Mueller Willi
Daimler-Chrysler AG
Easthom Karl D.
Fasse W. F.
Fasse W. G.
LandOfFree
Arrangement of a heating layer for a high-temperature gas... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Arrangement of a heating layer for a high-temperature gas..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Arrangement of a heating layer for a high-temperature gas... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3396177