Measuring and testing – Vibration – By mechanical waves
Reexamination Certificate
2005-01-11
2008-08-05
Williams, Hezron E. (Department: 2856)
Measuring and testing
Vibration
By mechanical waves
C073S299000, C073S301000, C123S02500R, C123S1980DA
Reexamination Certificate
active
07406871
ABSTRACT:
A fuel tank is allowed to hold any of types of liquid fuels and currently hold one type of liquid fuel. A light emitting element outputs a light beam of a predetermined emission spectrum to the liquid fuel of the fuel tank. The liquid fuel changes the light beam to a reflected light beam of a reflection spectrum according to spectral characteristics of the liquid fuel. The reflection spectrum is peculiar to the type of the liquid fuel of the fuel tank. A light receiving element detects the reflection spectrum, and a control circuit receives the detected reflection spectrum from the light receiving element. The control circuit collates the detected reflection spectrum with a referential reflection spectrum corresponding to each fuel type and identified the type of the liquid fuel of the fuel tank according to a collation result.
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Notification of Reasons for Refusal dated Nov. 12, 2007 in corresponding Japanese Patent Application No. 2004-005461 (and English translation).
Office Action dated Feb. 19, 2008 in corresponding Japanese Patent Application No. 2004-005461 (and English translation).
DENSO CORPORATION
Posz Law Group , PLC
Saint-Surin Jacques M.
Williams Hezron E.
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