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:
Jun. 05, 1990
Filed:
Apr. 27, 1989
Edoardo Robecchi, Milan, IT;
Abstract
An elastically extensible flexible belt is provided which comprises an annular body of elastomeric material in which is embedded a plurality of elongated elements arranged along a surface corresponding to the position of the neutral axis of the belt. The belt is characterized in that each elongated element, at 1/10 of its ultimate tensile stress, has an elongation value able to balance a shrinkage value of the innermost surface of the belt, ranging between two limit values .epsilon..sub.1 .epsilon..sub.2 corresponding to the bending of the belt according to two pre-established curvatures. The first curvature is represented by a circumference whose radius r.sub.1 is equal to 60% of the radius R of the circumferential development of the annular body in correspondence of the elongated elements and the second curvature is represented by a circumference whose radius r.sub.2 corresponds to 35% of the radius R of the circumferential development of the annular body.