发明名称 Color selecting apparatus
摘要 A color indicating apparatus which comprises a plurality of concentric overlappingly arranged discs which are rotatably mounted on a pivot post which is carried by a base. Each disc is basically transparent and includes a plurality of windows with each window being colored to a certain percentage of screening. Each disc is a certain primary color with there normally being utilized four in number of discs with there being four primary colors. Mounted on the base is a locking device which is to be movable to engage with the peripheral edge of the overlapped discs so as to lock the discs when located in a selected position. The visually observable color of each window within the outer disc will assume various shades as determined by the color density of the overlapped windows.
申请公布号 US4973253(A) 申请公布日期 1990.11.27
申请号 US19890453697 申请日期 1989.12.20
申请人 SOI CHARLES W. PERRY DESIGN WORKS, INC. 发明人 SHOOK, LYNN H.;LUCIR, RICHARD;JOHNSON, ANDREW J.;PAULA, KYLE S.;NUOVO, FRANK S.
分类号 G01J3/52;G09B19/00 主分类号 G01J3/52
代理机构 代理人
主权项
地址