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US 4,133,152 AGranted
Set of tiles for covering a surface
OwnerRoger Penroseinventor
Life of this patent
Estimating the term…
Abstract
A set of tiles for covering a surface is composed of two types of tile. Each type is basically quadrilateral in shape and the respective shapes are such that if a multiplicity of tiles are juxtaposed in a matching configuration, which may be prescribed by matching markings or shapings, the pattern which they form is necessarily non-repetitive, giving a considerable esthetic appeal to the eye. The tiles of the invention may be used to form an instructive game or as a visually attractive floor or wall covering or the like.
Claims11
A set of tiles for covering a plane surface comprising
- (a) a plurality of identical tiles of a first shape, five of said tiles assembled together around a center of five-fold symmetry mating along identical lines successively spaced by angles of 72.degree. to produce a basic continuous assemblage without interstices or overlaps, and
- (b) a plurality of identical tiles of a second shape different from said first shape said tiles of said second shape mating with tiles both of said first and said second shape to develop said basic continuous assemblage in all directions without interstices or overlaps to produce a greater assemblage of indefinite extent,
- said greater assemblage exhibiting localizd features of five-fold symmetry, being non-repeating, and being characterized by the absence of a period parallelogram.
Dependencies are inferred from the claim text.