Tear tape
US6713174B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 4, 2002 |
| Grant date | Mar 30, 2004 |
| Priority date | — |
| Expiry date | May 27, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/28
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A coextruded elongated tear tape comprises at least one layer of thermoplastic resin material monoaxially oriented in the longitudinal direction of the tape and a layer comprising adhesive. The method of making material for the tear tape comprises coextruding the layers. Apparatus for sealing tear tape to packaging material comprises an ultrasonic transducer and an anvil roll, the anvil roll having indicia representative of information formed in relief on the surface thereof and aligned with the path of the tear tape for embossing the indicia thereon. The embossing method comprises passing tape and thermoplastic resin packaging over the anvil roll and heating them to seal the tape to the packaging and to deform them into the indicia.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.