Apparatus for simultaneously measuring thickness of bottom wall

Details Apparatus for simultaneously measuring thickness of bottom wall Apparatus for simultaneously measuring thickness of bottom wall

1997-02-05

1998-08-04

Fulton, Christopher W.

Geometrical instruments

Gauge

Plural tests

33832, 33611, 335431, 33549, 33DIG2, G01B 1310, G01B 506

Patent

active

057875960

ABSTRACT:
An apparatus for simultaneously measuring the thickness of a bottom wall and the inside diameter of a bottoming hole. The apparatus includes a measurement auxiliary unit; a measurement head removably mounted at a lower end portion of the measurement auxiliary unit, the measurement head having an outside diameter fittable in a bottoming hole of a workpiece such as a tappet; a nozzle, provided in the measurement head, for jetting outward a compressed air supplied from an air micrometer; and an electric micrometer, provided over the measurement auxiliary unit, for detecting a vertical displacement of the measurement auxiliary unit.

REFERENCES:
patent: 5022161 (1991-06-01), Gray et al.
patent: 5653037 (1997-08-01), Hasegawa et al.

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