Mesa forming weld depth limitation feature for use with energy director in ultrasonic welding
US6066216A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 5, 1999 |
| Grant date | May 23, 2000 |
| Priority date | — |
| Expiry date | Feb 5, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/477
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An energy director structure with an auxiliary weld depth limitation feature is provided. The energy director is located on a first contact shelf. A second contact shelf that is shorter, broader, forming a mesa is positioned laterally adjacent to, and below, the first contact shelf. The second contact shelf forms a mesa that limits the depth of the ultrasonic welding. Limiting the time, pressure, or temperature of the welding process additionally ensures the weld depth is limited to the height of the second contact shelf or mesa. Two plastic pieces, one of which includes an energy director and mesa structure, may be welded together to form a capillary having precise volumetric accuracy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.