Flexible gauge for inside dimensions

Details Flexible gauge for inside dimensions Flexible gauge for inside dimensions

1982-08-30

1984-03-20

Stearns, Richard R.

Geometrical instruments

Area integrators

Electrical

G01B 350

Patent

active

044372426

ABSTRACT:
An apparatus for determining whether an approximately circular opening falls within predetermined dimensions. A flexible circular gauge comprises two resilient cylinders, one partially encased inside the other. The outer diameter of the smaller cylinder equals the minimum designed diameter of the opening. The thickness of the outer cylinder is equal to one-half the predetermined tolerance in variation in the dimensions of the opening, and the entire gauge is sufficiently flexible to follow the inside walls of the opening even though they may depart from a precise circle.

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patent: 1514250 (1924-11-01), Briney
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patent: 2365461 (1944-12-01), Fairbanks
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patent: 2664642 (1954-01-01), Rae
patent: 2684536 (1954-07-01), Ahmer
patent: 4211241 (1980-07-01), Kaster et al.
patent: 4216586 (1980-08-01), Long

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