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:
Oct. 21, 2025
Filed:
Nov. 27, 2022
Kienle + Spiess Gmbh, Sachsenheim, DE;
Björn Böker, Esslingen, DE;
Feintool International Holding AG, Lyss, CH;
Abstract
An adhesive application device is provided for carrying out a method for producing a lamination stack for rotors and stators of electric motors or generators, wherein a light-activated adhesive is applied to one side of electric steel prior to punching out laminations or to at least one side of already punched-out laminations, wherein the adhesive is irradiated and activated with a light of required wavelength immediately before the adhesive exits from an application unit, and wherein laminations are then punched out from the electric steel and stacked or the already punched-out laminations are stacked to a lamination stack. The adhesive application device has at least one application unit with at least one valve for discharging an adhesive. At least one radiation source is arranged in a region of the valve and emits radiation and directs the radiation to the adhesive provided in the region of the at least one valve.