Perforated air-tight seal membrane for a canister containing a particulate-type product
US6355286B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 1, 1999 |
| Grant date | Mar 12, 2002 |
| Priority date | — |
| Expiry date | Jul 1, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D5/6623
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A canister for storing a particulate-type product. The canister comprises opposing face panels, opposing side panels, a bottom closure, a top closure and a seal membrane. The opposing side panels together with the opposing face panels define an upper opening and a lower opening. The bottom closure is connected to the opposing face panels so as to encompass the lower opening. The opposing face panels, the opposing side panels and the bottom closure combine to define an internal storage region. The top closure is connected to the opposing face panels so as to encompass the upper opening. The top closure is configured to provide selective access to the internal storage region. Finally, the seal membrane is connected to the inner surfaces of the opposing face and side panels adjacent to and extending beneath the top closure. The seal membrane forms a substantially air-tight seal at the upper opening to maintain integrity of particulate-type product disposed within the internal storage region. In addition, the seal membrane is configured to provide selective access to the internal storage region and thereby the particulate-type product. In one preferred embodiment, the canister is confi…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.