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:
Jan. 07, 2014
Filed:
Mar. 15, 2011
Ulrich Vögler, Uhldingen, DE;
Francesco Giordano, Bologna, IT;
Sergio Mancin, Fidenza, IT;
Antonio Melandri, Rubiera, IT;
Magnus Råbe, Åkarp, SE;
Ulrich Vögler, Uhldingen, DE;
Francesco Giordano, Bologna, IT;
Sergio Mancin, Fidenza, IT;
Antonio Melandri, Rubiera, IT;
Magnus Råbe, Åkarp, SE;
Tetra Laval Holdings & Finance S.A., Pully, CH;
Abstract
A sonotrode comprising: a head defining a sealing surface elongated along a first direction; and a first and a second drive unit distinct from one another, each comprising at least one piezo-electric element; wherein first and second drive unit may be electrically fed by an unique generator to cause oscillation of head; the height of head measured along a second direction transversal to sealing surface being substantially equal to half the wavelength of wave oscillating in second direction; at least one slot extending through head transversally to first and second direction; a finite number of nodal points at which amplitude of oscillation of head is substantially equal to zero; and a plane on which at least some nodal points lie and which divides head in a first portion and second portion; the slot extends completely within one only between first and second portion and at a certain distance by plane.