Method and apparatus for removing and replacing the tamperproof device for a fire hydrant or other valve device
US6109292A · kind A · utility
3Cited by
10References
9Claims
0Family size
Inventor
Key dates
| Filing date | Aug 20, 1999 |
| Grant date | Aug 29, 2000 |
| Priority date | — |
| Expiry date | Aug 20, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/5468
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method and system for installing, removing and actuation a rotatable keyed actuation portion or lower valve stem portion of a fire hydrant or other valve device consisting of a first device for installing a rotatable keyed actuation portion, a second device for removing a rotatable keyed actuation portion and a third device for actuating a rotatable keyed actuation portion or a lower valve stem portion of a fire hydrant or other valve device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.