Hose direct canister lid
US6789690B2 · kind B2 · utility
57Cited by
85References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 18, 2002 |
| Grant date | Sep 14, 2004 |
| Priority date | — |
| Expiry date | Jun 18, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D81/2015
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A hose direct cannister lid includes a port that accepts a hose connected to a source of vacuum in order to evacuate a cannister to which the lid is connected. The hose direct cannister lid includes a first valve for exposing the cannister to the source of vacuum when the vacuum hose is secured to the lid, and wherein the first valve closes when the source of vacuum is removed in order to seal the lid and cannister from ambient. The hose direct cannister includes a second valve used to break the vacuum and expose the interior of the cannister to ambient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.