US Patent: 3,857,051 - Rotary Position Transducer Assembly Using Hydrostatic Bearings


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US Patent: 3,857,051

Rotary Position Transducer Assembly Using Hydrostatic Bearings

Patentees:

Daniel J. Seicher (exact or similar names) - New Holstein, Calumet County, WI

Orville W. Ehrhardt (exact or similar names) - Fond Du Lac, Fond Du Lac County, WI

USPTO Classifications:

310/36, 310/90, 318/653

Tool Categories:

metalworking machines : metalworking machine mechanisms

metalworking machines : rotary tables

Assignees:

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

Manufacturer:

Not known to have been produced

Witnesses:

Unknown

Patent Dates:
Applied:	Aug. 30, 1973
Granted:	Dec. 24, 1974

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 transducer having stator and rotor elements with electrical means for indicating and establishing the rotational position of a machine tool worktable or the like. The transducer rotor is rigidly and accurately supported by hydrostatic bearings for friction-free movement relative to the stator so as to enable the transducer to precisely position the worktable independent of external loads applied to the worktable.