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. 05, 2022
Filed:
Nov. 19, 2018
Herrmann Ultraschalltechnik Gmbh & Co. KG, Karlsbad, DE;
Gabriel Ertz, Hannover, DE;
Jens Twiefel, Hannover, DE;
Jorg Wallaschek, Hannover, DE;
Ulrich Vogler, Uhldingen-Muhlhofen, DE;
HERRMANN ULTRASCHALLTECHNIK GMBH & CO. KG, Karlsbad, DE;
Abstract
The present invention concerns an ultrasonic vibration unit having a converter () for converting an electric ac voltage into a mechanical ultrasonic vibration and a sonotrode which is vibrationally coupled to the converter (), wherein the sonotrode and the converter () are matched to each other in such a way that the ultrasonic vibration unit can vibrate with a natural frequency f, in which a standing longitudinal wave having at least one vibration node and at least two vibration antinodes is formed within the ultrasonic vibration unit. To provide an ultrasonic vibration unit in which the parasitic vibrations which usually occur in operation with a working frequency are slight or do not occur, wherein at the same time the actual working frequency is not attenuated, it is proposed according to the invention that there is provided a damp vibration absorber unit () connected to the ultrasonic vibration unit by way of a coupling element (), wherein the coupling element () is connected to the ultrasonic vibration unit at a vibration node, wherein the vibration absorber unit () is connected to a damping element () which is so adapted that it damps a vibration of the vibration absorber unit ().