Title: Translucent building blocks

Abstract: A hollow building block of transparent material comprises four perpendicular walls defining a rectangle, and a partition wall extending obliquely with respect to a plane at right angles to said perpendicular walls, said partition wall forming a boundary of a hollow space within said building block for containing liquid and the arrangement being such that when said hollow space is partially filled with a transparent liquid, light incident upon one of said perpendicular walls of the block can be reflected through said block by total internal reflection at a portion of said oblique wall immersed in said liquid.

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Inventors: Michaelis, Maximilian Gustav Alfred Cecil (Paris V, FR)

Application Number: 445699
Filing Date: 1974-02-25
Publication_date: 1976-05-04
Assignee:
Primary Class(es): 359/598 52/306
Other Classes:
US Patent Ref:

650209	May, 1900	White	350/260.
1949898	Mar, 1934	Cochrane et al.	52/306.
2158089	May, 1939	Slick	52/306.
2162160	Jun, 1939	Cooley et al.	350/258.
2163454	Jun, 1939	Slick	52/308.
2179862	Nov, 1939	Rolph	350/262.
2226220	Dec, 1940	Cox	52/306.
2844998	Jul, 1958	Vincent	350/260.
3059537	Oct, 1962	Walli	350/264.
3252260	May, 1966	Mills	52/308.
3471221	Oct, 1969	Seeger	350/265.

Other Refs: 16,5681,294,308

Aug, 1897	UK
Oct, 1972	UK

Primary Examiner: Hix, L. T.
Assistant Examiner: Mathews, Alan
Attorney: Seidel, Gonda & Goldhammer