The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 29, 1983
Filed:
Aug. 03, 1981
Erno Rubik, Budapest, HU;
Politoys Ipari Szovetkezet, Budapest, HU;
Abstract
A spatial logical toy in form of a regular geometrical solid, the toy-elements of which are assembled so that halves of the logical toy taken along any axis can be rotated in any direction of any of the spatial axes of the body in relation to the other half. The toy comprises a total of eight toy-elements, seven of which are identically shaped and are designed in such a way, that the corners are directed to the geometrical center of the body forming the spatial logical toy and are formed as profiles with a spherical surface. In the assembled state, between the profiles a hollow connecting element with a spherical surface on the upper part and having a T-shaped cross section is arranged. At the bottom of the hollow part of the connecting elements is a bore and a threaded pivot enclosed by a spring reaching to the bottom of the recess is passed through the bore and the threaded end of the pivot is screwed into a part of the eight toy-element which is directed to the geometrical center of the solid. The eighth toy-element is formed with a spherical cam and the spatial axes passing through the corner of the eight toy-element is directed to the inside of the body and through the surface center of the body.