Central vacuum interface for air exchanger
US6218798A · kind A · utility
14Cited by
13References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 12, 1999 |
| Grant date | Apr 17, 2001 |
| Priority date | — |
| Expiry date | Nov 12, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L9/2889
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A central vacuum cleaner system having a motor driven vacuum source which is selectively turned on or off. The central vacuum cleaner has an interface connector for establishing a connection between the central vacuum and an air exchanger. The interface connector is connected to be activated by the central vacuum when the motor is turned on so as to activate the air exchanger.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.