Apparatus for inspecting an engine valve seat

Measuring and testing – With fluid pressure – Leakage

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Details

73 497, 73119R, G01M 300

Patent

active

055333842

ABSTRACT:
An apparatus for measuring the ovality, concentricity and runout of an engine valve seat which is comprised of a datum plate, an air gage head, a pot master, a compressed air source, a signal processing device, and a display unit. The compressed air source, signal processing device and the display unit are conventional. One characteristic feature of the invention is the datum plate for limiting the angular displacement of the air gage head during a measurement of an engine valve seat. A second characteristic feature of the invention is that the air gage head "floats" in the air gage body if a measurement is within an established limit for the measurement. A third characteristic feature of the invention is a self-aligning pilot at an end portion of the gage head.

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