Tamper resistant construction for hydrant actuating nut
US5727590A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 20, 1997 |
| Grant date | Mar 17, 1998 |
| Priority date | — |
| Expiry date | Mar 20, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/9247
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A tamper resistant construction for preventing unauthorized actuation of the hydrant nut of a fire hydrant by causing any lateral pounding or upward forces applied to the tamper resistant construction to be transmitted directly to the hydrant body cover of the fire hydrant including a packing nut threaded into the hydrant body cover proximate the hydrant nut, a hydrant nut actuating body located within the packing nut and mounted on the hydrant nut in turning relationship therewith, a shroud permanently or removably rotatably mounted on the packing nut in closely spaced relationship to a cap rotatably mounted on the hydrant nut actuating body, and a configuration on the hydrant nut actuating body between the cap and the shroud for receiving a special wrench.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.