US Patent No: 8,072,228
Number of patents in Portfolio can not be more than 2000
Angle measuring device
Stats
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Dec 6, 2011
Issued date -
Jan 31, 2007
filing date -
12/278,796
serial no -
In Force
status
Importance
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Abstract
An angle measuring device for optical angle measurement has a telescope body 5 which is rotatably mounted around at least one shaft (1, 2; 11), wherein the shaft (1, 2; 11) is rotatably mounted at least two bearing points 6, and the bearing points 6 are at a distance from one another in the direction of the shaft (1, 2; 11). In this case, at least two sensor arrangements for detecting the position of the shaft (1, 2; 11) are respectively arranged at a measurement point along the shaft (1, 2; 11), wherein the measurement points are at a distance from one another in the direction of the shaft (1, 2; 11). At least one of the sensor arrangements has a group of capacitive sensors (7a, 7b, 7c, 7d) which detect a displacement of the shaft (1, 2; 11) in directions perpendicular to the axial direction at the measurement point.
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First Claim
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 4,309,062 Bearing movement preventing system | 10 | 1979 | |
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| 5,000,585 Apparatus for bearing a shaft | 1 | 1989 | |
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| 4,455,758 Bearing means for angle measuring instruments | 4 | 1983 | |
Patent Citation Ranking
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