Oscillating, transverse-axis water sprinkler with see-saw spray arm and twist-positionable nozzles
US5730366A · kind A · utility
Inventor
Key dates
| Filing date | Apr 4, 1996 |
| Grant date | Mar 24, 1998 |
| Priority date | — |
| Expiry date | Apr 4, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B15/68
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A water sprinkler of a new type has a spray arm which oscillates about a horizontal axis transverse or perpendicular to the length of the spray arm, in a see-saw fashion, to distribute water to a length of the lawn or garden area. Spray nozzles spaced apart on a distortable, peripheral wall along the length of the spray arm in a linear array are adjustable, by twisting the peripheral wall of the arm, to a circumferentially-arrayed, helical or spiral pattern, to distribute water to cover a selected width of the lawn or garden area. Both the angle of the oscillation and the twist of the wall may be selectively varied or adjusted to select respectively the length and the width of the area to be sprinkled. The twist is adjustably-fixed along and about the flow passage, as by an internal twist-setting arm. Also, the spray arm may oscillate about its center or one end thereof, depending on the oscillation mechanism used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.