Abstract: The mechanical differential actuator according to the present invention comprises a mechanical differential having three mechanicals ports. A first transducer with a low impedance is coupled to a first port, a second transducer with a high impedance is coupled to a second port, and the mechanical load is coupled to the third port. The mechanical differential actuator enables controlling a force and a speed at a load coupled thereto through a known relation between the force and the speed. Moreover, the mechanical differential actuator presents a compact structure enabling the transfer of a large force relative to its volume.
Type:
Grant
Filed:
March 30, 2007
Date of Patent:
June 26, 2012
Assignee:
Societe de Commercialisation de Produits de la Recherche Appliquee-Socpra-Sciences et Genie, S.E.C.
Inventors:
Michel Lauria, Marc-Antoine Legault, Patrick Giguére, Frédéric Gagnon, François Michaud, Marc-André Lavoie