Appliance for storing articles in an evacuated container
US6725632B2 · kind B2 · utility
9Cited by
23References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 11, 2002 |
| Grant date | Apr 27, 2004 |
| Priority date | — |
| Expiry date | Jan 11, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B49/022
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A vacuum sealing appliance for lidded containers. A container is evacuated by placing a conventional container with a lid under a bell cover or by applying a special lid to an open container. An actuator assembly moves a valve to an sealed position and energizes an electrical vacuum pump. A vacuum switch and solenoid simultaneously terminate the operation of the vacuum pump and allow atmospheric pressure to be applied to the lid, thereby to seal the lid against the container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.