Rotary sprinkler
US4402460A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 1981 |
| Grant date | Sep 6, 1983 |
| Priority date | — |
| Expiry date | Jun 30, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B3/0461
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A sprinkler including a body defining a nozzle arranged to provide a stream of pressurized liquid, spring loaded stream deflector and hammer apparatus for intermittently engaging the stream and providing in response to the engagement of a force causing intermittent rotation of the body about a rotation axis, apparatus for selectably limiting the amplitude of motion of the stream deflector and hammer apparatus and thus determining the direction of rotation of the body and the overall range of the spray produced and having first and second orientations corresponding to rotation in forward and return directions, selectably positionable protrusion apparatus for defining the azimuthal limits of a desired irrigation zone; and finger apparatus associated with the selectably limiting apparatus constructed such that positioning of the finger means in a first position for disengagement with the protrusion apparatus results in positioning of the selectably limiting apparatus in a selected orientation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.