发明名称 Tide clock assembly with optical device providing the appearance of rising and falling fluid
摘要 A device for displaying the present tide level in relation to high and low tide. The display using a clear rod and colored elements in a manner to give the impression of fluid in a rod and the height of the fluid representing the present tide level. The colored elements being moved passed the clear rod by a cut assembly. One of the colored elements being used represents the tide level when rising and the other represents the tide level when falling. The tide level can be displayed in hours to high or low tide.
申请公布号 US5077705(A) 申请公布日期 1991.12.31
申请号 US19900593081 申请日期 1990.10.05
申请人 ANDERSON, JOHN 发明人 ANDERSON, JOHN
分类号 G04B19/26 主分类号 G04B19/26
代理机构 代理人
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