Deep draw package and system for making same, including apparatus and method
US5765345A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 29, 1993 |
| Grant date | Jun 16, 1998 |
| Priority date | — |
| Expiry date | Sep 29, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2009/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A system of the present invention includes a deep draw package enclosing a three dimensional item such as for example a blood collection tube or the like, and an apparatus and method for making the same. The deep draw package includes an upper film and a lower film each having a cavity formed therein, with the films sealingly joined together along the periphery of the cavities to form an item containing compartment therein. A tab member is provide along one edge of the films to facilitate opening of the package. The apparatus and method of the present invention include a number of sub-assemblies for providing an upper film and a lower film, forming cavities in the films, placing the item in one of the cavities, sealing the films together along the periphery of the cavities to form a continuous web and cutting the continuous web into strips having the desired number of packages formed therein. The sub-assembly for forming the cavities in the films includes a female die member, a male die member and a polymeric back-up plate to relieve stress during the formation of the cavities in the films.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.