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:
May. 23, 1995
Filed:
Jul. 13, 1993
Roland Luthier, St-Sulpice, CH;
Raymond Froidevaux, Boudry, CH;
Asulab S.A., Biel, CH;
Abstract
A piezoelectric motor. Such motor includes a support (2), a stator (S2, S3) fixed to the support (2), piezoelectric means (10) adapted to be electrically excited so as to induce a vibratory motion in the stator (S2, S3), a rotor (R2, R3) mounted for rotation relative to the support (2), such rotor including a body on which transmission means (36) are arranged and adapted to transmit the vibratory motion of the stator (S2, S3) to the rotor (R2, R3) and in order to drive such rotor in rotation, and elastic support means (79) for the rotor on the stator, characterized in that the body of the rotor is formed by a structure (D2, D3) which is elastically deformable, at least in the direction of the stator, and which at least in part forms the support means (79). The invention is applied, for example, to a timepiece.