Optics: measuring and testing – Standard
Patent
1994-10-12
1995-09-19
McGraw, Vincent P.
Optics: measuring and testing
Standard
356423, G01J 352
Patent
active
054520819
ABSTRACT:
Visual inspection device for inspecting the finish on manufactured goods. A plurality of samples are joined together in a substantially flat, substantially disk-like shape for easy viewing. The device includes a viewing hole in the center so that the surface being inspected can be viewed both through the hole and on the outside of the device, thus making comparisons by eye more accurate. The device optionally includes radial slots so that multiple devices can be fastened together or a device can be fastened to another object.
REFERENCES:
patent: 241655 (1881-05-01), Heeren
patent: 2364609 (1944-12-01), Almquist
patent: 4112594 (1978-09-01), Impastato
Bartell Richard C.
Wotzka Friedrich
International Business Machines - Corporation
McGraw Vincent P.
Phillips Steven B.
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