Cleaner and actuator device for remote access valve controls
US4643218A · kind A · utility
Inventor
Key dates
| Filing date | Apr 24, 1986 |
| Grant date | Feb 17, 1987 |
| Priority date | — |
| Expiry date | Apr 24, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/6995
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A cleaner device for cleaning the valve box or cistern which provides remote access to a valve control body of a valve in an underground pipe line, the device having achieving the cleaning by compressed air passing through a tubular body member, and having an upwardly-open basket for catching the debris stirred up by the moving air. A downwardly-opening socket member at the foot of the device, the socket member being slightly oversize as to the valve's control body, both guides the air stream to give a cleaning impingement of the walls of the valve's control body and provides the mechanical component by which the valve-operating torque is applied to the valve's control body; and at the upper end of the tubular body member a deflector disc baffles moving debris back into the valve box or cistern for causing such debris to be collected in the basket.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.