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:
Sep. 30, 2025
Filed:
Dec. 13, 2022
Commissariat a L'energie Atomique ET Aux Energies Alternatives, Paris, FR;
Ayoub Ben Dhiab, Gif-sur-Yvette, FR;
Charles Hudin, Gif-sur-Yvette, FR;
Abstract
A device for local friction modulation via vibration includes a vibrating interface with a contact surface, a plurality of actuators with active surfaces that are arranged against this vibrating interface, designed to vibrate the vibrating interface in a transverse direction through the transmission of mechanical bending waves to create at least one local friction modulation on the contact surface, and a generator which generates a plurality of control signals for controlling the actuators. Each control signal comprises a carrier signal at a non-radiating frequency for the actuator that it controls. At least two of the actuators share an overlapping common portion of their active surfaces.