Adjustable rotary stream sprinkler unit
US4898332A · kind A · utility
64Cited by
4References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 10, 1989 |
| Grant date | Feb 6, 1990 |
| Priority date | — |
| Expiry date | Apr 10, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B15/74
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A rotary stream sprinkler unit comprises a body having a water flow passage in which is disposed a flow control unit having a variable restriction in a passage to one or more arcuate passages configured to control the volume and pressure of a primary stream delivered to a rotary distributor head rotatably mounted at the outlet of the housing for dividing each primary stream into a plurality of final streams and rotating each of the final streams through a selected arc during the rotation of the rotary head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.