Breathable fire hydrant rod
US7428910B2 · kind B2 · utility
4Cited by
42References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2006 |
| Grant date | Sep 30, 2008 |
| Priority date | — |
| Expiry date | Sep 27, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7929
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The present invention relates to methods and devices for providing a fire hydrant actuator rod with additional structure for allowing air to reach the area of a fire hydrant below a secondary valve. Various embodiments include an actuator rod with openings and hollow portions and configured to provide air from the area of a hydrant above the secondary valve to the area of a hydrant below a secondary valve. In some embodiments of the present invention, a check valve is provided with the actuator rod that is adapted to prevent the flow of fluid in at least one direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.