Multiwalled container and method of making same
US4797244A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 23, 1984 |
| Grant date | Jan 10, 1989 |
| Priority date | — |
| Expiry date | Aug 23, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/716
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A multiwalled plastic container and method for making the same is disclosed having a barrier liner and an outer wall providing structural support for the liner. The container provides increased protection against separation of the liner and structural wall especially at the rim defining the opening of the container. This is accomplished by a wrap around liner lip construction wherein the liner extends from the inside surface of the structural wall around the top rim surface of the wall and downwardly depends therefrom along the outer surface of the structural wall. To downwardly depending leg of the liner lip is recessed within the outer wall surface providing adding protection against liner separation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.