Process of manufacturing an instrumentation apparatus with curab

Details Process of manufacturing an instrumentation apparatus with curab Process of manufacturing an instrumentation apparatus with curab

1992-03-20

1993-09-14

Strecker, Gerard R.

Metal working

Method of mechanical manufacture

Electrical device making

29608, 148101, 264DIG58, 324143, 324146, 335302, G01R 116, G01R 516, G01R 700, H01F 128

Patent

active

052437523

ABSTRACT:
An instrumentation apparatus with curable internal magnets is shown. The apparatus comprises a magnetic rotor and a rotatably mountable spindle to which the magnetic rotor is attached. A support structure to which the spindle is rotatably mounted defines at least one retaining area. A material is poured into and cured in the retaining area, and then charged to form a magnet. The molded and cured magnet provides a constant magnetic field that acts upon the magnetic rotor, providing a return-to-zero function or a volt gauge function for the instrumentation apparatus.

REFERENCES:
patent: 4492920 (1985-01-01), Reenstra
patent: 4724601 (1988-02-01), MacManus et al.
patent: 5145614 (1992-09-01), Kuroda

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