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:
Apr. 26, 2005
Filed:
May. 28, 2003
Juri Estrin, Goslar, DE;
Norbert Müller, Goslar, DE;
Detlef Trenke, Clausthal-Zellerfeld, DE;
Arcady Dyskin, Karrinyup, AU;
Elena Pasternak, Karrinyup, AU;
Juri Estrin, Goslar, DE;
Norbert Müller, Goslar, DE;
Detlef Trenke, Clausthal-Zellerfeld, DE;
Arcady Dyskin, Karrinyup, AU;
Elena Pasternak, Karrinyup, AU;
Technische Universitat Clausthal, Clausthal-Zellerfeld, DE;
Abstract
The invention relates to a structure assembled from elements, the elements forming an entity with topological interlocking. To improve structures of this type, the invention proposes a self-supporting structure comprising hollow, tublar element (), which are put together with parallel axes to form an interlocking entity without any binder as a composite layer, in which the element (), respectively lying only loosely against one another with linear contact, are held together by a frame () or the like extending around the element structure and determining the flexural elesticity of the structure by its own restraining force, each of the elements () having a circular middle cross section () starting from the circumference of which the generated convex half-surfaces of the element (), go over in a smoothly curved manner to the two element ends, the edge contour () of which repectively has the form of a flat ellipse having pointed major-axis vertices (), the major axes () of which, lying normal to the longitudinal axis () of the element, are turned bywith respect to each other about the longitudinal axis () of the element, the axial ratio of the two ellipse axes () in a cross section lying normal to the longitudinal axis () of the element increasing continuously from the center of the element () respectively to its ends.