Color comparison device having a bulged insertion groove for hol

Details Color comparison device having a bulged insertion groove for hol Color comparison device having a bulged insertion groove for hol

1989-03-13

1991-01-15

Evans, F. L.

Optics: measuring and testing

By shade or color

With reflective multicolor chart or standard

422 58, G01J 352

Patent

active

049848950

ABSTRACT:
A color comparison device comprises a casing unit having a comparison window for displaying a comparison color sample section mounted on a rotatable wheel and a test stick insertion groove portion formed in an upper surface of the casing unit at one end thereof and disposed generally centrally of the width of the casing unit, the insertion groove portion communicating with the comparison window so that a test stick inserted into the insertion groove portion overlies the comparison color sample section in the comparison window, the insertion groove portion having a bulged fixing section by which a test stick inserted in the insertion groove is held therein in a flexed condition.

REFERENCES:
patent: 1617459 (1927-02-01), Roderick
patent: 1631553 (1927-06-01), Roderick
patent: 4509859 (1985-04-01), Markart et al.
patent: 4780283 (1988-10-01), Meinecke et al.
patent: 4797256 (1989-01-01), Watlington, IV
patent: 4871258 (1989-10-01), Herpichboehm et al.

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