Valve alignment tool
US5316040A · kind A · utility
Inventors
Key dates
| Filing date | Mar 26, 1993 |
| Grant date | May 31, 1994 |
| Priority date | — |
| Expiry date | Mar 26, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8275
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A valve alignment tool for correctly aligning the valve box above each shut off valve in the water pipes of a underground water main. The valve alignment tool fits over the square stem nut of the gate valve, and fits in sliding engagement with the valve box to align the bottom of the valve box around the square stem nut of the gate valve. The top of the valve alignment tool protrudes above the surface of the ground and contains a bubble level so that it can be held vertically as the sections the valve box are slid down the outside of the valve alignment tool. When the trench around the underground water main has been filled in, and the top section of the valve box has been put in place, the valve alignment tool is withdrawn.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.