Calibration block

Details Calibration block Calibration block

2007-04-25

2008-12-16

Williams, Hezron (Department: 2856)

Measuring and testing

Instrument proving or calibrating

Displacement, motion, distance, or position

C073S001860

Reexamination Certificate

active

07464579

ABSTRACT:
A calibration block for use in calibrating a thickness gauge having a diameter d, wherein the block has a measurement face and a recess extending inwardly of the block from a face opposite the measurement face, the recess having a maximum transverse dimension at the opposite face which is not less than 3d, and in that the bottom of the recess is inclined relative to the measurement face in all directions from a central region of the bottom of the recess, the measurement face comprising a reference feature, the location of which corresponds to a specific point on the bottom of the recess.

REFERENCES:
patent: 3908439 (1975-09-01), Pelak et al.
patent: 4068524 (1978-01-01), Lewis et al.
patent: 6415644 (2002-07-01), Rockwood et al.
patent: 2005/0092091 (2005-05-01), Greelish
patent: WO 2005/028996 (2005-03-01), None

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