Method and apparatus for removing trapped water
US6889912B2 · kind B2 · utility
4Cited by
16References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 4, 2002 |
| Grant date | May 10, 2005 |
| Priority date | — |
| Expiry date | Apr 27, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62C35/68
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An apparatus and method for clean, efficient removal of water and odor from a sprinkler systems including a vessel, a pump which creates a reduced pressure in the vessel, and a connector for attaching the device to the sprinkler system to remove trapped water. The vacuum pump is powered by a power source, and the reduced pressure created by vacuum pump is controlled by a regulator such that the vacuum pressure is maintained and does not cause damage to the gaskets in the sprinkler system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.