Sprinkler having valve module with reciprocating valve seat
US7303147B1 · kind B1 · utility
59Cited by
8References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2006 |
| Grant date | Dec 4, 2007 |
| Priority date | — |
| Expiry date | Mar 31, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B15/74
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A sprinkler includes an outer case and a riser mounted for reciprocation within the case. The riser supports a nozzle, an impeller, and a drive linkage connecting the nozzle and the impeller. A diaphragm valve is mounted in outer case beneath the riser and includes a valve member vertically reciprocable within a valve support housing to engage and disengage a valve seat. The valve seat can reciprocate relative to the valve support housing to reduce mechanical loading.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.