Pop-up sprinkler with top serviceable diaphragm valve module
US6491235B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2000 |
| Grant date | Dec 10, 2002 |
| Priority date | — |
| Expiry date | Sep 24, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B3/0432
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A top serviceable pop-up sprinkler includes a main cylindrical outer housing having a female threaded inlet at a lower end thereof A spring biased tubular riser is mounted inside the outer housing for vertical reciprocation through an opening in an upper end of the outer housing. A nozzle is fixed in a nozzle head rotatably mounted at an upper end of the riser for ejecting a stream of water. The nozzle is rotated over an adjustable arc by a conventional turbine, gear drive and arc adjustable reversing mechanism. A valve actuator component assembly, including a pilot valve, solenoid and pressure regulator is mounted in a generally rectangular component housing that is connected to the side of the cylindrical outer housing. A lid of the component housing aligns with, and effectively forms a part of, a circular ground support flange that extends horizontally from the upper end of the outer housing. The riser opening is eccentrically located in the circular ground support flange. A diaphragm valve module is mounted in the lower end of the outer housing for controlling the flow of water through the inlet in response to the opening and closing of the solenoid actuated pilot valve. The di…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.