Apparatus and a method for bonding webs of non-woven plastic material
US12415322B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2025 |
| Grant date | Sep 16, 2025 |
| Priority date | — |
| Expiry date | Mar 18, 2045 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2310/028
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus having a first treatment module and a second treatment module, at least one of which includes a welding device for treating one or more workpieces. The apparatus has a controller arranged to: receive a real-time amplitude signal of ultrasonic vibration of at least one of the first treatment module and the second treatment module during a treatment cycle; segment the amplitude signal into a plurality of amplitude segments for the treatment cycle; monitor an amplitude value of each of the plurality of amplitude segments during the treatment cycle; operate a plurality of closed-loop control algorithms to determine a plurality of amplitude adjustment values, each of the plurality of amplitude adjustment values corresponding to a respective one of the plurality of amplitude segments; and apply each amplitude adjustment value to the corresponding respective one of the plurality of amplitude segments during the subsequent treatment cycle in real-time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.