Oscillating sprinkler
US4568024A · kind A · utility
82Cited by
4References
20Claims
0Family size
Inventor
Key dates
| Filing date | Jul 21, 1983 |
| Grant date | Feb 4, 1986 |
| Priority date | — |
| Expiry date | Jul 21, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B15/74
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A gear driven oscillating sprinkler head includes a shifting gear train for transmitting drive from a drive motor to the oscillating sprinkler head with a shifting mechanism for shifting alternate driving pinions into driving engagement with an internal ring gear with the pressure angle of the engaging teeth being different for the different drive pinions to thereby balance the shifting force applied by the shifting mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.