Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Lumped type parameters
Reexamination Certificate
2005-02-08
2005-02-08
Le, N. (Department: 2858)
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Lumped type parameters
C324S658000, C324S691000
Reexamination Certificate
active
06853203
ABSTRACT:
An oil quality measurement device for an oil circuit (1), which includes an oil condition sensor (2) and an analysis circuit (3). The oil condition sensor (2) is constructed as a capacitive or impedance spectroscopic sensor (4) and attached to the filter element (14) in such a way that, when the filter element (14) is replaced, the oil condition sensor (2) is also automatically replaced.
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Search Report EP 02 10 2817, Jun. 2003.
Beylich Markus
Franz Andreas
Benson Walter
Crowell & Moring LLP
Le N.
Mann & Hummel GmbH
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