Geometrical instruments – Area integrators – Electrical
Patent
1982-04-06
1984-05-15
Haroian, Harry N.
Geometrical instruments
Area integrators
Electrical
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
Golinelli Guido
Selleri Narciso
Finike Italiana Marposs S.p.A.
Haroian Harry N.
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