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US Patent: 6,058,618
Coordinate Measuring Machine
Patentees:
Thomas L. Hemmelgarn (exact or similar names) - Vandalia, Montgomery County, OH
Frederick K. Bell (exact or similar names) - Centerville, Montgomery County, OH
Freddie L. Raleigh (exact or similar names) - Centerville, Montgomery County, OH
Donald K. Greier (exact or similar names) - Dayton, Montgomery County, OH

USPTO Classifications:
33/503

Tool Categories:
metalworking tools : machinist tools : measuring tools : coordinate measuring machines

Assignees:
Giddings & Lewis, Inc. - Fond Du Lac, Fond Du Lac County, WI

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Sep. 09, 1997
Granted: May 09, 2000

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Giddings & Lewis Manufacturing Co.
Description:
Abstract:

A coordinate measuring machine (CMM) is disclosed having improved manufacturability and low cost while maintaining high performance standards. The CMM includes a polymer composite gantry-style base incorporating a three-point support configuration in the X, Y, and Z axes. The X-beam is hollow, has a horizontal cross-sectional orientation, uses a passive ventilation technique, and is attached to the bearing at one end by a compliant mount. The Z-axis probe shaft incorporates a combined counterbalance/drive assembly and a compliant secondary rail guide mechanism. The X-axis and Y-axis drive screws have angular alignment capability using a spherical washer configuration. This combination of features serves to minimize non-repeatable errors and enhance the manufacturability of the CMM, providing substantial improvements in CMM design and construction.

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