Self-vacuum arrangement for pneumatic equipment
US7343848B2 · kind B2 · utility
1Cited by
7References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2006 |
| Grant date | Mar 18, 2008 |
| Priority date | — |
| Expiry date | May 30, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B15/1433
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A self-vacuum arrangement for pneumatic equipment is provided. A Venturi device having first and second ports and a central tap is provided. A first check valve having a first port operably coupled with the central tap of the Venturi device is configured to prevent pneumatic flow from the central tap through the first check valve. Optionally included is a second valve having a first port operably coupled with the first port of the Venturi device, and a second port operably coupled with the second port of the Venturi device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.