Gear cutting – milling – or planing – Milling – Machine frame
Reexamination Certificate
2005-03-15
2005-03-15
Cadugan, Erica (Department: 3722)
Gear cutting, milling, or planing
Milling
Machine frame
C409S147000, C409S135000, C409S186000, C409S193000, C409S207000, C408S008000, C700S193000, C033S702000, C033SDIG001, C374S006000, C374S055000, C374S141000, C374S183000, C374S185000
Reexamination Certificate
active
06866451
ABSTRACT:
A device for detecting thermally caused linear expansions of a machine element, wherein the device includes a temperature sensor placed along an expansion direction. The temperature sensor includes a first metallic conductor having an electrical resistance that is proportional to an average temperature of an area to be monitored and a plurality of trimmer tracks in the form of further metallic conductors placed next to the first metallic conductor. The temperature sensor further includes electrical connections selectively interconnecting the plurality of trimmer tracks with the first metallic conductor and wherein the plurality of the trimmer tracks have an effective electrical resistance that is proportional to the average temperature of the area to be monitored.
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Braasch Jan
Müller Josef
Seichter Martin
Brinks Hofer Gilson & Lione
Cadugan Erica
Dr. Johannes Heidenhain GmbH
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