Interlocking valve box and lid
US7243810B2 · kind B2 · utility
12Cited by
25References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 17, 2003 |
| Grant date | Jul 17, 2007 |
| Priority date | — |
| Expiry date | Sep 17, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F15/18
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An improved underground box and lid for use in irrigation systems and other underground systems is provided. A single box can be inverted, combined and interlocked with a second box to form a single enclosed structure that is twice as high. This can be used for those installations where underground system components are buried in the ground at a greater depth than can be accommodated by a single box.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.