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:
Jul. 16, 2013
Filed:
Mar. 17, 2009
Robert Greubel, Lignières, CH;
Stephen Edward Methuen Forsey, Les Brenets, CH;
Robert Greubel, Lignières, CH;
Stephen Edward Methuen Forsey, Les Brenets, CH;
CompliTime SA, La Chaux-de-Fonds, CH;
Abstract
A pivot organ () designed to allow the rotation of a piece () of a clockwork movement around an axis of rotation, includes two elements: a pivot () and a bearing () receiving the pivot (), one being integral with the piece () and the other being integral with the frame () of the movement. The elements () have shapes at their opposite surfaces such that the section of one of the elements along a plane perpendicular to the axis of rotation is circular, the section of the other element along the plane being non-circular, so as to reduce the contact surface between the pivot () and the bearing (). At least the contact surfaces of the two elements against each other are made from at least one material intrinsically having a low coefficient of friction and a low wear coefficient.