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Translucent building blocks

  • US 3,954,326 A
  • Filed: 02/25/1974
  • Issued: 05/04/1976
  • Est. Priority Date: 01/03/1974
  • Status: Expired due to Term
First Claim
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1. An article of manufacture in the form of a hollow translucent block having vertical parallel side walls connected to vertical parallel end walls, the side walls being longer than the end walls, the upper surfaces of said side walls and end walls being at least partially flat for engagement with mating structure on another block adapted to be superimposed thereabove, the lower surfaces of said side walls and end walls being at least partially flat for engagement with mating structure on another block adapted for supporting the same from below, said block having a bottom wall and lacking a top wall, the improvement comprising said bottom wall being partially defined by a horizontal portion and partially defined by a portion oblique to the planes of said side walls, liquid within said block with the upper level of the liquid being below, the upper edge of said side walls and in contact with said oblique portion of the bottom wall, such that said liquid cooperates with said oblique portion to transmit at least some light incident on said side walls through said block by total internal reflection.

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