Manually operated vacuum pump and refill device
US7641452B2 · kind B2 · utility
0Cited by
22References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 16, 2007 |
| Grant date | Jan 5, 2010 |
| Priority date | — |
| Expiry date | Sep 19, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/3109
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A manually operated vacuum pump and refill device includes a body on top with a vacuum pump attached, and a lower portion of the body is arranged with an elastic adapter. The adapter has a central channel in communication with the body. The body includes an inlet in which a water supply is connected. A control valve is arranged on the water supply before it reaches to the body. The vacuum pump is further arranged with a check valve with respect to the body. The body is also arranged with a check valve securely positioned with a C-clip. The check valve is provided with a float moveably within a chamber thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.