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:
Sep. 22, 1992
Filed:
Jul. 12, 1991
Richard H Anderson, Trabuco Canyon, CA (US);
Robert R Anderson, Trabuco Canyon, CA (US);
Richard R Anderson, Trabuco Canyon, CA (US);
Other;
Abstract
A drawing template for facilitating the formation of images upon a spherical surface is disclosed. In a first embodiment the template comprises first and second transparent hollow hemispheres having indicia formed upon their surfaces such that the two hemispheres may be disposed about a spherical drawing surface and the indicia may then be used as a guide to form corresponding images upon the drawing surface. In a second embodiment, a planar sheet of flexible material is configured such that it will conform substantially to the shape of a sphere when placed in laminar juxtaposition therewith. Indicia formed upon the sheet of flexible material provide a guide by which images may be formed upon the drawing surface. Both embodiments of the drawing template of the present invention are particularly applicable for use with a three-dimensional drawing device which forms images upon the inner surface of a transparent sphere.