Geometrical instruments – Distance measuring – Scale reading position sensor
Reexamination Certificate
2006-03-07
2006-03-07
Fulton, Christopher W. (Department: 2859)
Geometrical instruments
Distance measuring
Scale reading position sensor
C033S702000
Reexamination Certificate
active
07007397
ABSTRACT:
A main scale is firmly bonded to a metal tape having a desired coefficient of linear expansion by a powerful adhesive. At the same time, the metal tape is fixed to a frame by a two-sided adhesive tape so as to be capable of expansion and contraction. A length measuring apparatus is provided, wherein a scale material which is unstable with respect to variations in temperature and humidity is stabilized, thereby achieving a desired coefficient of linear expansion.
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Kodama Kazuhiko
Oshima Shigeru
Fulton Christopher W.
Mitutoyo Corporation
Rankin, Hill Porter & Clark LLP
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