Apparatuses and methods for ultrasonic sealing
US10632684B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 2018 |
| Grant date | Apr 28, 2020 |
| Priority date | — |
| Expiry date | Jun 21, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/7128
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus for ultrasonic sealing and methods for manufacturing disclosed. Embodiments include a base and a tool profile for sealing a material, for example, a package. The tool profile is supported by the base and defines a seal line forming raised surface extending across a length of the base and having a crest line of uniform height above the base. In at least one embodiment, the raised surface includes a first portion of the length having a first cross-sectional mass and second and third portions of the length having a second cross-sectional mass, with the first cross-sectional mass being less than the second cross-sectional mass. Advantageously, a package to be sealed can be positioned such that its thicker material areas line up with the first portion of the raised surface having reduced mass, which applies less energy to the package than is applied along the larger mass portions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.