Plug gauge for checking dimensions of bores of mechanical parts

Geometrical instruments – Area integrators – Electrical

Patent

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Details

33147K, 33148H, G01B 712

Patent

active

044479603

ABSTRACT:
Plug gauge for checking the diameter of a bore, including two movable arms with relevant feelers and a protective body defining two holes for the passage of the feelers. A sealing gasket seals the space between the holes of the protective body and the feelers, preventing the entry of foreign matter, such as chips and coolants, into the protective body.

REFERENCES:
patent: 3717934 (1973-02-01), Ishikawa
patent: 4030202 (1977-06-01), Fadl et al.
patent: 4279079 (1981-07-01), Gamberini et al.
patent: 4306455 (1981-12-01), Selleri

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