Optics: measuring and testing – Angle measuring or angular axial alignment
Reexamination Certificate
2006-05-02
2006-05-02
Turner, Samuel A. (Department: 2877)
Optics: measuring and testing
Angle measuring or angular axial alignment
C356S139050, C033S278000
Reexamination Certificate
active
07038770
ABSTRACT:
A virtual-tight-wire system is provided for determining a centerline in a large rotary machine (10). The virtual-tight-wire system includes a columnar light source (30) that is positioned at one end of the rotary machine (10). A columnar beam of light (32) is emitted from the light source (30) toward light receivers (26) in a first and second centering tool (24). The beam of light (32) is adjusted to impact the center of the light receivers (26). Once the beam (32) has been aligned, the beam acts as a virtual tight-wire for identifying a centerline of the rotary machine (10).
REFERENCES:
patent: 4521968 (1985-06-01), Wiltermood et al.
patent: 5359781 (1994-11-01), Melville
Abbasi Waheed A.
Rethage Wilbert B.
Punnoose Roy M.
Siemens Power Generation, Inc.
Turner Samuel A.
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